Bump v13.0.0-beta.20

Co-authored-by: Keeley Hammond <vertedinde@electronjs.org>

.devcontainer/README.md

@@ -1,59 +0,0 @@
-# Electron Dev on Codespaces
-
-Welcome to the Codespaces Electron Developer Environment.
-
-## Quick Start
-
-Upon creation of your codespace you should have [build tools](https://github.com/electron/build-tools) installed and an initialized gclient checkout of Electron.  In order to build electron you'll need to run the following commands.
-
-```bash
-e sync -vv
-e build
-```
-
-The initial sync will take approximately ~30 minutes and the build will take ~8 minutes.  Incremental syncs and incremental builds are substantially quicker.
-
-## Directory Structure
-
-Codespaces doesn't lean very well into gclient based checkouts, the directory structure is slightly strange.  There are two locations for the `electron` checkout that both map to the same files under the hood.
-
-```graphql
-# Primary gclient checkout container
-/workspaces/gclient/*
-  └─ src/* - # Chromium checkout
-     └─ electron - # Electron checkout
-# Symlinked Electron checkout (identical to the above)
-/workspaces/electron
-```
-
-## Goma
-
-If you are a maintainer [with Goma access](../docs/development/goma.md) it should be automatically configured and authenticated when you spin up a new codespaces instance.  You can validate this by checking `e d goma_auth info` or by checking that your build-tools configuration has a goma mode of `cluster`.
-
-## Running Electron
-
-You can run Electron in a few ways.  If you just want to see if it launches:
-
-```bash
-# Enter an interactive JS prompt headlessly
-xvfb-run e start -i
-```
-
-But if you want to actually see Electron you will need to use the built-in VNC capability.  If you click "Ports" in codespaces and then open the `VNC web client` forwarded port you should see a web based VNC portal in your browser.  When you are asked for a password use `builduser`.
-
-Once in the VNC UI you can open `Applications -> System -> XTerm` which will open a VNC based terminal app and then you can run `e start` like normal and Electron will open in your VNC session.
-
-## Running Tests
-
-You run tests via build-tools and `xvfb`.
-
-```bash
-# Run all tests
-xvfb-run e test
-
-# Run the main process tests
-xvfb-run e test --runners=main
-
-# Run the old remote tests
-xvfb-run e test --runners=remote
-```

.devcontainer/devcontainer.json

@@ -1,43 +0,0 @@
-{
-	"dockerComposeFile": "docker-compose.yml",
-	"service": "buildtools",
-	"onCreateCommand": ".devcontainer/on-create-command.sh",
-	"workspaceFolder": "/workspaces/gclient/src/electron",
-	"extensions": [
-		"joeleinbinder.mojom-language",
-		"rafaelmaiolla.diff",
-		"surajbarkale.ninja",
-		"ms-vscode.cpptools",
-		"mutantdino.resourcemonitor",
-		"dbaeumer.vscode-eslint",
-		"shakram02.bash-beautify",
-		"marshallofsound.gnls-electron"
-	],
-	"settings": {
-		"[gn]": {
-			"editor.formatOnSave": true
-		},
-		"editor.tabSize": 2,
-		"bashBeautify.tabSize": 2
-	},
-	"forwardPorts": [8088, 6080, 5901],
-	"portsAttributes": {
-		"8088": {
-			"label": "Goma Control Panel",
-			"onAutoForward": "silent"
-		},
-		"6080": {
-			"label": "VNC web client (noVNC)",
-			"onAutoForward": "silent"
-		},
-		"5901": {
-			"label": "VNC TCP port",
-			"onAutoForward": "silent"
-		}
-	},
-	"hostRequirements": {
-		"storage": "32gb",
-		"cpus": 8
-	},
-	"remoteUser": "builduser"
-}

.devcontainer/docker-compose.yml

@@ -1,19 +0,0 @@
-version: '3'
-
-services:
-  buildtools:
-    image: ghcr.io/electron/devcontainer:27db4a3e3512bfd2e47f58cea69922da0835f1d9
-
-    volumes:
-      - ..:/workspaces/gclient/src/electron:cached
-
-      - /var/run/docker.sock:/var/run/docker.sock 
-
-    command: /bin/sh -c "while sleep 1000; do :; done"  
-
-    user: builduser
-
-    cap_add:
-      - SYS_PTRACE
-    security_opt:
-      - seccomp:unconfined

.devcontainer/on-create-command.sh

@@ -1,74 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-buildtools=$HOME/.electron_build_tools
-gclient_root=/workspaces/gclient
-buildtools_configs=/workspaces/buildtools-configs
-
-export PATH="$PATH:$buildtools/src"
-
-# Create the persisted buildtools config folder
-mkdir -p $buildtools_configs
-rm -f $buildtools/configs
-ln -s $buildtools_configs $buildtools/configs
-
-# Write the gclient config if it does not already exist
-if [ ! -f $gclient_root/.gclient ]; then
-  echo "solutions = [
-      { \"name\"        : \"src/electron\",
-          \"url\"         : \"https://github.com/electron/electron\",
-          \"deps_file\"   : \"DEPS\",
-          \"managed\"     : False,
-          \"custom_deps\" : {
-          },
-          \"custom_vars\": {},
-      },
-    ]
-  " >$gclient_root/.gclient
-fi
-
-# Write the default buildtools config file if it does
-# not already exist
-if [ ! -f $buildtools/configs/evm.testing.json ]; then
-  write_config() {
-    echo "
-        {
-            \"root\": \"/workspaces/gclient\",
-            \"goma\": \"$1\",
-            \"gen\": {
-                \"args\": [
-                    \"import(\\\"//electron/build/args/testing.gn\\\")\",
-                    \"import(\\\"/home/builduser/.electron_build_tools/third_party/goma.gn\\\")\"
-                ],
-                \"out\": \"Testing\"
-            },
-            \"env\": {
-                \"CHROMIUM_BUILDTOOLS_PATH\": \"/workspaces/gclient/src/buildtools\",
-                \"GIT_CACHE_PATH\": \"/workspaces/gclient/.git-cache\"
-            },
-            \"remotes\": {
-                \"electron\": {
-                    \"origin\": \"https://github.com/electron/electron.git\"
-                }
-            }
-        }
-    " >$buildtools/configs/evm.testing.json
-  }
-
-  # Start out as cache only
-  write_config cache-only
-
-  e use testing
-
-  # Attempt to auth to the goma service via codespaces tokens
-  # if it works we can use the goma cluster
-  export NOTGOMA_CODESPACES_TOKEN=$GITHUB_TOKEN
-  if e d goma_auth login; then
-    write_config cluster
-  fi
-else
-  # Even if the config file existed we still need to re-auth with the goma
-  # cluster
-  NOTGOMA_CODESPACES_TOKEN=$GITHUB_TOKEN e d goma_auth login || true
-fi

.github/CODEOWNERS

@@ -4,7 +4,7 @@
 # https://git-scm.com/docs/gitignore
 
 # Upgrades WG
-/patches/                               @electron/wg-upgrades @electron/wg-security
+/patches/                               @electron/wg-upgrades
 DEPS                                    @electron/wg-upgrades
 
 # Releases WG
@@ -12,8 +12,10 @@ DEPS                                    @electron/wg-upgrades
 /script/release                         @electron/wg-releases
 
 # Security WG
-/lib/browser/devtools.ts                @electron/wg-security
-/lib/browser/guest-view-manager.ts      @electron/wg-security
-/lib/browser/guest-window-proxy.ts      @electron/wg-security
 /lib/browser/rpc-server.ts              @electron/wg-security
-/lib/renderer/security-warnings.ts      @electron/wg-security
+
+# Remote Change Disliker
+/lib/browser/remote/                    @nornagon
+/lib/renderer/remote/                   @nornagon
+/lib/renderer/api/remote.ts             @nornagon
+/docs/api/remote.md                     @nornagon

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -0,0 +1,58 @@
+---
+name: Bug report
+about: Create a report to help us improve Electron
+
+---
+
+<!--  As an open source project with a dedicated but small maintainer team, it can sometimes take a long time for issues to be addressed so please be patient and we will get back to you as soon as we can.
+-->
+
+### Preflight Checklist
+<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->
+
+* [ ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
+* [ ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+* [ ] I have searched the issue tracker for an issue that matches the one I want to file, without success.
+
+### Issue Details
+
+* **Electron Version:**
+  * <!-- (output of `node_modules/.bin/electron --version`) e.g. 4.0.3 -->
+* **Operating System:**
+  * <!-- (Platform and Version) e.g. macOS 10.13.6 / Windows 10 (1803) / Ubuntu 18.04 x64 -->
+* **Last Known Working Electron version:**
+  * <!-- (if applicable) e.g. 3.1.0 -->
+
+### Expected Behavior
+<!-- A clear and concise description of what you expected to happen. -->
+
+### Actual Behavior
+<!-- A clear and concise description of what actually happened. -->
+
+### To Reproduce
+<!--
+Your best chance of getting this bug looked at quickly is to provide an example.
+-->
+
+<!--
+For bugs that can be encapsulated in a small experiment, you can use Electron Fiddle (https://github.com/electron/fiddle) to publish your example to a GitHub Gist and link it your bug report.
+-->
+
+<!--
+If Fiddle is insufficient to produce an example, please provide an example REPOSITORY that can be cloned and run. You can fork electron-quick-start (https://github.com/electron/electron-quick-start) and include a link to the branch with your changes.
+-->
+
+<!--
+If you provide a URL, please list the commands required to clone/setup/run your repo e.g.
+```sh
+$ git clone $YOUR_URL -b $BRANCH
+$ npm install
+$ npm start || electron .
+```
+-->
+
+### Screenshots
+<!-- If applicable, add screenshots to help explain your problem. -->
+
+### Additional Information
+<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,77 +0,0 @@
-name: Bug Report
-description: Report an Electron bug
-title: "[Bug]: "
-labels: "bug :beetle:"
-body:
-- type: checkboxes
-  attributes:
-    label: Preflight Checklist
-    description: Please ensure you've completed all of the following.
-    options:
-      - label: I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/main/CONTRIBUTING.md) for this project.
-        required: true
-      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
-        required: true
-      - label: I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a bug report that matches the one I want to file, without success.
-        required: true
-- type: input
-  attributes:
-    label: Electron Version
-    description: What version of Electron are you using?
-    placeholder: 12.0.0
-  validations:
-    required: true
-- type: dropdown
-  attributes:
-    label: What operating system are you using?
-    options:
-      - Windows
-      - macOS
-      - Ubuntu
-      - Other Linux
-      - Other (specify below)
-  validations:
-    required: true
-- type: input
-  attributes:
-    label: Operating System Version
-    description: What operating system version are you using? On Windows, click Start button > Settings > System > About. On macOS, click the Apple Menu > About This Mac. On Linux, use lsb_release or uname -a.
-    placeholder: "e.g. Windows 10 version 1909, macOS Catalina 10.15.7, or Ubuntu 20.04"
-  validations:
-    required: true
-- type: dropdown
-  attributes:
-    label: What arch are you using?
-    options:
-      - x64
-      - ia32
-      - arm64 (including Apple Silicon)
-      - Other (specify below)
-  validations:
-    required: true
-- type: input
-  attributes:
-    label: Last Known Working Electron version
-    description: What is the last version of Electron this worked in, if applicable?
-    placeholder: 11.0.0
-- type: textarea
-  attributes:
-    label: Expected Behavior
-    description: A clear and concise description of what you expected to happen.
-  validations:
-    required: true
-- type: textarea
-  attributes:
-    label: Actual Behavior
-    description: A clear description of what actually happens.
-  validations:
-    required: true
-- type: input
-  attributes:
-    label: Testcase Gist URL
-    description: If you can reproduce the issue in a standalone test case, please use [Electron Fiddle](https://github.com/electron/fiddle) to create one and to publish it as a [GitHub gist](https://gist.github.com) and put the gist URL here. This is **the best way** to ensure this issue is triaged quickly.
-    placeholder: https://gist.github.com/...
-- type: textarea
-  attributes:
-    label: Additional Information
-    description: If your problem needs further explanation, or if the issue you're seeing cannot be reproduced in a gist, please add more information here.

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,19 +1,18 @@
 name: Feature Request
-description: Suggest an idea for Electron
+about: Suggest an idea for Electron
 title: "[Feature Request]: "
-labels: "enhancement :sparkles:"
+labels: "enhancement ✨"
 body:
-- type: checkboxes
+- type: textarea
   attributes:
     label: Preflight Checklist
-    description: Please ensure you've completed all of the following.
-    options:
-      - label: I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/main/CONTRIBUTING.md) for this project.
-        required: true
-      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
-        required: true
-      - label: I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.
-        required: true
+    description: Please ensure you've completed the following steps by replacing [ ] with [x]
+    value: |
+      * [ ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
+      * [ ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+      * [ ] I have searched the issue tracker for a feature request that matches the one I want to file, without success.
+  validations:
+    required: true
 - type: textarea
   attributes:
     label: Problem Description
@@ -37,4 +36,4 @@ body:
     label: Additional Information
     description: Add any other context about the problem here.
   validations:
-    required: false
+    required: true

.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.md

@@ -0,0 +1,25 @@
+---
+name: Mac App Store Private API Rejection
+about: Your app was rejected from the Mac App Store for using private API's
+
+---
+
+<!--  As an open source project with a dedicated but small maintainer team, it can sometimes take a long time for issues to be addressed so please be patient and we will get back to you as soon as we can.
+-->
+
+### Preflight Checklist
+<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->
+
+* [ ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
+* [ ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+
+### Issue Details
+
+* **Electron Version:** 
+  * <!-- (output of `node_modules/.bin/electron --version`) e.g. 4.0.3 -->
+
+### Rejection Email
+<!-- Paste the contents of your rejection email here, censoring any private information such as app names.-->
+
+### Additional Information
+<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.yml

@@ -1,30 +0,0 @@
-name: Report Mac App Store Private API Rejection
-description: Your app was rejected from the Mac App Store for using private API's
-title: "[MAS Rejection]: "
-body:
-- type: checkboxes
-  attributes:
-    label: Preflight Checklist
-    description: Please ensure you've completed all of the following.
-    options:
-      - label: I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/main/CONTRIBUTING.md) for this project.
-        required: true
-      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
-        required: true
-- type: input
-  attributes:
-    label: Electron Version
-    description: What version of Electron are you using?
-    placeholder: 12.0.0
-  validations:
-    required: true
-- type: textarea
-  attributes:
-    label: Rejection Email
-    description: Paste the contents of your rejection email here, censoring any private information such as app names.
-  validations:
-    required: true
-- type: textarea
-  attributes:
-    label: Additional Information
-    description: Add any other context about the problem here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,7 +3,7 @@
 Thank you for your Pull Request. Please provide a description above and review
 the requirements below.
 
-Contributors guide: https://github.com/electron/electron/blob/main/CONTRIBUTING.md
+Contributors guide: https://github.com/electron/electron/blob/master/CONTRIBUTING.md
 -->
 
 #### Checklist
@@ -11,7 +11,7 @@ Contributors guide: https://github.com/electron/electron/blob/main/CONTRIBUTING.
 
 - [ ] PR description included and stakeholders cc'd
 - [ ] `npm test` passes
-- [ ] tests are [changed or added](https://github.com/electron/electron/blob/main/docs/development/testing.md)
+- [ ] tests are [changed or added](https://github.com/electron/electron/blob/master/docs/development/testing.md)
 - [ ] relevant documentation is changed or added
 - [ ] [PR release notes](https://github.com/electron/clerk/blob/master/README.md) describe the change in a way relevant to app developers, and are [capitalized, punctuated, and past tense](https://github.com/electron/clerk/blob/master/README.md#examples).
 

.github/config.yml

@@ -2,7 +2,7 @@
 newPRWelcomeComment: |
   💖 Thanks for opening this pull request! 💖
 
-  We use [semantic commit messages](https://github.com/electron/electron/blob/main/docs/development/pull-requests.md#commit-message-guidelines) to streamline the release process. Before your pull request can be merged, you should **update your pull request title** to start with a semantic prefix.
+  We use [semantic commit messages](https://github.com/electron/electron/blob/master/docs/development/pull-requests.md#commit-message-guidelines) to streamline the release process. Before your pull request can be merged, you should **update your pull request title** to start with a semantic prefix.
 
   Examples of commit messages with semantic prefixes:
 
@@ -12,9 +12,9 @@ newPRWelcomeComment: |
 
   Things that will help get your PR across the finish line:
 
-  - Follow the JavaScript, C++, and Python [coding style](https://github.com/electron/electron/blob/main/docs/development/coding-style.md).
+  - Follow the JavaScript, C++, and Python [coding style](https://github.com/electron/electron/blob/master/docs/development/coding-style.md).
   - Run `npm run lint` locally to catch formatting errors earlier.
-  - Document any user-facing changes you've made following the [documentation styleguide](https://github.com/electron/electron/blob/main/docs/styleguide.md).
+  - Document any user-facing changes you've made following the [documentation styleguide](https://github.com/electron/electron/blob/master/docs/styleguide.md).
   - Include tests when adding/changing behavior.
   - Include screenshots and animated GIFs whenever possible.
 

.gitignore

@@ -17,6 +17,24 @@
 *.xcodeproj
 /.idea/
 /dist/
+/external_binaries/
+/out/
+/vendor/.gclient
+/vendor/debian_jessie_mips64-sysroot/
+/vendor/debian_stretch_amd64-sysroot/
+/vendor/debian_stretch_arm-sysroot/
+/vendor/debian_stretch_arm64-sysroot/
+/vendor/debian_stretch_i386-sysroot/
+/vendor/gcc-4.8.3-d197-n64-loongson/
+/vendor/readme-gcc483-loongson.txt
+/vendor/download/
+/vendor/llvm-build/
+/vendor/llvm/
+/vendor/npm/
+/vendor/python_26/
+/vendor/native_mksnapshot
+/vendor/LICENSES.chromium.html
+/vendor/pyyaml
 node_modules/
 SHASUMS256.txt
 **/package-lock.json
@@ -26,7 +44,6 @@ compile_commands.json
 # npm package
 /npm/dist
 /npm/path.txt
-/npm/checksums.json
 
 .npmrc
 

.husky/.gitignore

@@ -1 +0,0 @@
-_

.husky/pre-commit

@@ -1,4 +0,0 @@
-#!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
-
-npm run precommit

.husky/pre-push

@@ -1,4 +0,0 @@
-#!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
-
-npm run prepack

.markdownlint.json

@@ -22,8 +22,5 @@
   "no-trailing-spaces": {
     "br_spaces": 0
   },
-  "single-h1": false,
-  "no-inline-html": {
-    "allowed_elements": ["br"]
-  }
+  "single-h1": false
 }

.nvmrc

@@ -1 +0,0 @@
-14

BUILD.gn

@@ -1,7 +1,6 @@
 import("//build/config/locales.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/manifest.gni")
-import("//components/os_crypt/features.gni")
 import("//components/spellcheck/spellcheck_build_features.gni")
 import("//content/public/app/mac_helpers.gni")
 import("//extensions/buildflags/buildflags.gni")
@@ -26,8 +25,6 @@ import("electron_paks.gni")
 import("filenames.auto.gni")
 import("filenames.gni")
 import("filenames.hunspell.gni")
-import("filenames.libcxx.gni")
-import("filenames.libcxxabi.gni")
 
 if (is_mac) {
   import("//build/config/mac/rules.gni")
@@ -35,10 +32,6 @@ if (is_mac) {
   import("//ui/gl/features.gni")
   import("//v8/gni/v8.gni")
   import("build/rules.gni")
-
-  assert(
-      mac_deployment_target == "10.11.0",
-      "Chromium has updated the mac_deployment_target, please update this assert, update the supported versions documentation (docs/tutorial/support.md) and flag this as a breaking change")
 }
 
 if (is_linux) {
@@ -187,12 +180,6 @@ action("electron_js2c") {
          rebase_path(sources, root_build_dir)
 }
 
-action("generate_config_gypi") {
-  outputs = [ "$root_gen_dir/config.gypi" ]
-  script = "script/generate-config-gypi.py"
-  args = rebase_path(outputs) + [ target_cpu ]
-}
-
 target_gen_default_app_js = "$target_gen_dir/js/default_app"
 
 typescript_build("default_app_js") {
@@ -303,7 +290,7 @@ templated_file("electron_version_header") {
 action("electron_fuses") {
   script = "build/fuses/build.py"
 
-  inputs = [ "build/fuses/fuses.json5" ]
+  inputs = [ "build/fuses/fuses.json" ]
 
   outputs = [
     "$target_gen_dir/fuses.h",
@@ -313,23 +300,6 @@ action("electron_fuses") {
   args = rebase_path(outputs)
 }
 
-action("electron_generate_node_defines") {
-  script = "build/generate_node_defines.py"
-
-  inputs = [
-    "//third_party/electron_node/src/tracing/trace_event_common.h",
-    "//third_party/electron_node/src/tracing/trace_event.h",
-    "//third_party/electron_node/src/util.h",
-  ]
-
-  outputs = [
-    "$target_gen_dir/push_and_undef_node_defines.h",
-    "$target_gen_dir/pop_node_defines.h",
-  ]
-
-  args = [ rebase_path(target_gen_dir) ] + rebase_path(inputs)
-}
-
 source_set("electron_lib") {
   configs += [ "//v8:external_startup_data" ]
   configs += [ "//third_party/electron_node:node_internals" ]
@@ -341,7 +311,6 @@ source_set("electron_lib") {
 
   deps = [
     ":electron_fuses",
-    ":electron_generate_node_defines",
     ":electron_js2c",
     ":electron_version_header",
     ":resources",
@@ -353,7 +322,6 @@ source_set("electron_lib") {
     "//base/allocator:buildflags",
     "//chrome/app:command_ids",
     "//chrome/app/resources:platform_locale_settings",
-    "//components/autofill/core/common:features",
     "//components/certificate_transparency",
     "//components/language/core/browser",
     "//components/net_log",
@@ -361,11 +329,8 @@ source_set("electron_lib") {
     "//components/network_hints/common:mojo_bindings",
     "//components/network_hints/renderer",
     "//components/network_session_configurator/common",
-    "//components/omnibox/browser:buildflags",
-    "//components/os_crypt",
     "//components/pref_registry",
     "//components/prefs",
-    "//components/security_state/content",
     "//components/upload_list",
     "//components/user_prefs",
     "//components/viz/host",
@@ -378,6 +343,7 @@ source_set("electron_lib") {
     "//device/bluetooth",
     "//device/bluetooth/public/cpp",
     "//gin",
+    "//media/blink:blink",
     "//media/capture/mojom:video_capture",
     "//media/mojo/mojom",
     "//net:extras",
@@ -387,7 +353,6 @@ source_set("electron_lib") {
     "//ppapi/shared_impl",
     "//printing/buildflags",
     "//services/device/public/cpp/geolocation",
-    "//services/device/public/cpp/hid",
     "//services/device/public/mojom",
     "//services/proxy_resolver:lib",
     "//services/video_capture/public/mojom:constants",
@@ -395,7 +360,6 @@ source_set("electron_lib") {
     "//skia",
     "//third_party/blink/public:blink",
     "//third_party/blink/public:blink_devtools_inspector_resources",
-    "//third_party/blink/public/platform/media",
     "//third_party/boringssl",
     "//third_party/electron_node:node_lib",
     "//third_party/inspector_protocol:crdtp",
@@ -421,6 +385,7 @@ source_set("electron_lib") {
   ]
 
   include_dirs = [
+    "chromium_src",
     ".",
     "$target_gen_dir",
 
@@ -472,16 +437,12 @@ source_set("electron_lib") {
   }
 
   if (is_linux) {
-    deps += [
-      "//components/crash/content/browser",
-      "//ui/gtk:gtk_config",
-    ]
+    deps += [ "//components/crash/content/browser" ]
   }
 
   if (is_mac) {
     deps += [
       "//components/remote_cocoa/app_shim",
-      "//components/remote_cocoa/browser",
       "//content/common:mac_helpers",
       "//ui/accelerated_widget_mac",
     ]
@@ -539,18 +500,17 @@ source_set("electron_lib") {
       "//build/config/linux/gtk",
       "//dbus",
       "//device/bluetooth",
-      "//ui/base/ime/linux",
       "//ui/events/devices/x11",
       "//ui/events/platform/x11",
       "//ui/gtk",
       "//ui/views/controls/webview",
       "//ui/wm",
     ]
-    if (ozone_platform_x11) {
+    if (use_x11) {
       sources += filenames.lib_sources_linux_x11
-      public_deps += [
-        "//ui/base/x",
-        "//ui/ozone/platform/x11",
+      deps += [
+        "//ui/gfx/x",
+        "//ui/gtk/x",
       ]
     }
     configs += [ ":gio_unix" ]
@@ -559,9 +519,8 @@ source_set("electron_lib") {
       "GLIB_DISABLE_DEPRECATION_WARNINGS",
     ]
 
+    sources += filenames.lib_sources_nss
     sources += [
-      "shell/browser/certificate_manager_model.cc",
-      "shell/browser/certificate_manager_model.h",
       "shell/browser/ui/gtk/app_indicator_icon.cc",
       "shell/browser/ui/gtk/app_indicator_icon.h",
       "shell/browser/ui/gtk/app_indicator_icon_menu.cc",
@@ -633,6 +592,12 @@ source_set("electron_lib") {
   }
 
   if (enable_desktop_capturer) {
+    if (is_component_build && !is_linux) {
+      # On windows the implementation relies on unexported
+      # DxgiDuplicatorController class.  On macOS the implementation
+      # relies on unexported webrtc::GetWindowOwnerPid method.
+      deps += [ "//third_party/webrtc/modules/desktop_capture" ]
+    }
     sources += [
       "shell/browser/api/electron_api_desktop_capturer.cc",
       "shell/browser/api/electron_api_desktop_capturer.h",
@@ -650,8 +615,6 @@ source_set("electron_lib") {
     sources += [
       "shell/browser/printing/print_preview_message_handler.cc",
       "shell/browser/printing/print_preview_message_handler.h",
-      "shell/browser/printing/print_view_manager_electron.cc",
-      "shell/browser/printing/print_view_manager_electron.h",
       "shell/renderer/printing/print_render_frame_helper_delegate.cc",
       "shell/renderer/printing/print_render_frame_helper_delegate.h",
     ]
@@ -712,10 +675,6 @@ source_set("electron_lib") {
     ]
     libs += [ "uxtheme.lib" ]
   }
-
-  if (allow_runtime_configurable_key_storage) {
-    defines += [ "ALLOW_RUNTIME_CONFIGURABLE_KEY_STORAGE" ]
-  }
 }
 
 electron_paks("packed_resources") {
@@ -900,12 +859,8 @@ if (is_mac) {
         deps += [ "//sandbox/mac:seatbelt" ]
       }
       defines = [ "HELPER_EXECUTABLE" ]
-      sources = [
-        "shell/app/electron_main_mac.cc",
-        "shell/app/uv_stdio_fix.cc",
-        "shell/app/uv_stdio_fix.h",
-        "shell/common/electron_constants.cc",
-      ]
+      sources = filenames.app_sources
+      sources += [ "shell/common/electron_constants.cc" ]
       include_dirs = [ "." ]
       info_plist = "shell/renderer/resources/mac/Info.plist"
       extra_substitutions =
@@ -1036,32 +991,22 @@ if (is_mac) {
     outputs = [ "{{bundle_resources_dir}}/{{source_file_part}}" ]
   }
 
-  asar_hashed_info_plist("electron_app_plist") {
-    keys = [ "DEFAULT_APP_ASAR_HEADER_SHA" ]
-    hash_targets = [ ":default_app_asar_header_hash" ]
-    plist_file = "shell/browser/resources/mac/Info.plist"
-  }
-
   mac_app_bundle("electron_app") {
     output_name = electron_product_name
-    sources = [
-      "shell/app/electron_main_mac.cc",
-      "shell/app/uv_stdio_fix.cc",
-      "shell/app/uv_stdio_fix.h",
-      "shell/common/electron_constants.cc",
-    ]
+    sources = filenames.app_sources
+    sources += [ "shell/common/electron_constants.cc" ]
     include_dirs = [ "." ]
     deps = [
       ":electron_app_framework_bundle_data",
-      ":electron_app_plist",
       ":electron_app_resources",
       ":electron_fuses",
+      "//base",
       "//electron/buildflags",
     ]
     if (is_mas_build) {
       deps += [ ":electron_login_helper_app" ]
     }
-    info_plist_target = ":electron_app_plist"
+    info_plist = "shell/browser/resources/mac/Info.plist"
     extra_substitutions = [
       "ELECTRON_BUNDLE_ID=$electron_mac_bundle_id",
       "ELECTRON_VERSION=$electron_version",
@@ -1157,15 +1102,7 @@ if (is_mac) {
 
   executable("electron_app") {
     output_name = electron_project_name
-    if (is_win) {
-      sources = [ "shell/app/electron_main_win.cc" ]
-    } else if (is_linux) {
-      sources = [
-        "shell/app/electron_main_linux.cc",
-        "shell/app/uv_stdio_fix.cc",
-        "shell/app/uv_stdio_fix.h",
-      ]
-    }
+    sources = filenames.app_sources
     include_dirs = [ "." ]
     deps = [
       ":default_app_asar",
@@ -1179,14 +1116,13 @@ if (is_mac) {
     ]
 
     data = []
-    data_deps = []
 
     data += [ "$root_out_dir/resources.pak" ]
     data += [ "$root_out_dir/chrome_100_percent.pak" ]
     if (enable_hidpi) {
       data += [ "$root_out_dir/chrome_200_percent.pak" ]
     }
-    foreach(locale, platform_pak_locales) {
+    foreach(locale, locales) {
       data += [ "$root_out_dir/locales/$locale.pak" ]
     }
 
@@ -1198,10 +1134,6 @@ if (is_mac) {
       public_deps = [ "//tools/v8_context_snapshot:v8_context_snapshot" ]
     }
 
-    if (is_linux) {
-      data_deps += [ "//components/crash/core/app:chrome_crashpad_handler" ]
-    }
-
     if (is_win) {
       sources += [
         # TODO: we should be generating our .rc files more like how chrome does
@@ -1228,6 +1160,11 @@ if (is_mac) {
         "//build/config/win:delayloads",
       ]
 
+      if (target_cpu == "arm64") {
+        configs -= [ "//build/config/win:cfi_linker" ]
+        ldflags += [ "/guard:cf,nolongjmp" ]
+      }
+
       if (current_cpu == "x86") {
         # Set the initial stack size to 0.5MiB, instead of the 1.5MiB needed by
         # Chrome's main thread. This saves significant memory on threads (like
@@ -1354,18 +1291,13 @@ template("dist_zip") {
                              "testonly",
                            ])
     flatten = false
-    flatten_relative_to = false
     if (defined(invoker.flatten)) {
       flatten = invoker.flatten
-      if (defined(invoker.flatten_relative_to)) {
-        flatten_relative_to = invoker.flatten_relative_to
-      }
     }
     args = rebase_path(outputs + [ _runtime_deps_file ], root_build_dir) + [
              target_cpu,
              target_os,
              "$flatten",
-             "$flatten_relative_to",
            ]
   }
 }
@@ -1401,13 +1333,11 @@ dist_zip("electron_dist_zip") {
   if (is_linux) {
     data_deps += [ "//sandbox/linux:chrome_sandbox" ]
   }
-  deps = data_deps
   outputs = [ "$root_build_dir/dist.zip" ]
 }
 
 dist_zip("electron_ffmpeg_zip") {
   data_deps = [ "//third_party/ffmpeg" ]
-  deps = data_deps
   outputs = [ "$root_build_dir/ffmpeg.zip" ]
 }
 
@@ -1425,7 +1355,6 @@ group("electron_chromedriver") {
 dist_zip("electron_chromedriver_zip") {
   testonly = true
   data_deps = electron_chromedriver_deps
-  deps = data_deps
   outputs = [ "$root_build_dir/chromedriver.zip" ]
 }
 
@@ -1444,7 +1373,6 @@ group("electron_mksnapshot") {
 
 dist_zip("electron_mksnapshot_zip") {
   data_deps = mksnapshot_deps
-  deps = data_deps
   outputs = [ "$root_build_dir/mksnapshot.zip" ]
 }
 
@@ -1455,52 +1383,11 @@ copy("hunspell_dictionaries") {
 
 dist_zip("hunspell_dictionaries_zip") {
   data_deps = [ ":hunspell_dictionaries" ]
-  deps = data_deps
   flatten = true
 
   outputs = [ "$root_build_dir/hunspell_dictionaries.zip" ]
 }
 
-copy("libcxx_headers") {
-  sources = libcxx_headers + libcxx_licenses +
-            [ "//buildtools/third_party/libc++/__config_site" ]
-  outputs = [ "$target_gen_dir/electron_libcxx_include/{{source_root_relative_dir}}/{{source_file_part}}" ]
-}
-
-dist_zip("libcxx_headers_zip") {
-  data_deps = [ ":libcxx_headers" ]
-  deps = data_deps
-  flatten = true
-  flatten_relative_to = rebase_path(
-          "$target_gen_dir/electron_libcxx_include/buildtools/third_party/libc++/trunk",
-          "$root_out_dir")
-
-  outputs = [ "$root_build_dir/libcxx_headers.zip" ]
-}
-
-copy("libcxxabi_headers") {
-  sources = libcxxabi_headers + libcxxabi_licenses
-  outputs = [ "$target_gen_dir/electron_libcxxabi_include/{{source_root_relative_dir}}/{{source_file_part}}" ]
-}
-
-dist_zip("libcxxabi_headers_zip") {
-  data_deps = [ ":libcxxabi_headers" ]
-  deps = data_deps
-  flatten = true
-  flatten_relative_to = rebase_path(
-          "$target_gen_dir/electron_libcxxabi_include/buildtools/third_party/libc++abi/trunk",
-          "$root_out_dir")
-
-  outputs = [ "$root_build_dir/libcxxabi_headers.zip" ]
-}
-
-action("libcxx_objects_zip") {
-  deps = [ "//buildtools/third_party/libc++" ]
-  script = "build/zip_libcxx.py"
-  outputs = [ "$root_build_dir/libcxx_objects.zip" ]
-  args = rebase_path(outputs)
-}
-
 group("electron") {
   public_deps = [ ":electron_app" ]
 }

CONTRIBUTING.md

@@ -22,7 +22,7 @@ Issues are created [here](https://github.com/electron/electron/issues/new).
 
 ### Issue Closure
 
-Bug reports will be closed if the issue has been inactive and the latest affected version no longer receives support. At the moment, Electron maintains its three latest major versions, with a new major version being released every 8 weeks. (For more information on Electron's release cadence, see [this blog post](https://electronjs.org/blog/8-week-cadence).)
+Bug reports will be closed if the issue has been inactive and the latest affected version no longer receives support. At the moment, Electron maintains its three latest major versions, with a new major version being released every 12 weeks. (For more information on Electron's release cadence, see [this blog post](https://electronjs.org/blog/12-week-cadence).)
 
 _If an issue has been closed and you still feel it's relevant, feel free to ping a maintainer or add a comment!_
 
@@ -36,7 +36,7 @@ Having the original text _as well as_ the translation can help mitigate translat
 
 Responses to posted issues may or may not be in the original language.
 
-**Please note** that using non-English as an attempt to circumvent our [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) will be an immediate, and possibly indefinite, ban from the project.
+**Please note** that using non-English as an attempt to circumvent our [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) will be an immediate, and possibly indefinite, ban from the project.
 
 ## [Pull Requests](https://electronjs.org/docs/development/pull-requests)
 

DEPS

@@ -10,21 +10,17 @@ gclient_gn_args = [
   'checkout_openxr',
   'checkout_google_benchmark',
   'mac_xcode_version',
-  'generate_location_tags',
 ]
 
 vars = {
   'chromium_version':
-    '100.0.4896.75',
+    '91.0.4448.0',
   'node_version':
-    'v16.13.2',
+    'v14.16.0',
   'nan_version':
-    # The following commit hash of NAN is v2.14.2 with *only* changes to the
-    # test suite. This should be updated to a specific tag when one becomes
-    # available.
-    '65b32af46e9d7fab2e4ff657751205b3865f4920',
+    'v2.14.2',
   'squirrel.mac_version':
-    '0e5d146ba13101a1302d59ea6e6e0b3cace4ae38',
+    'cdc0729c8bf8576bfef18629186e1e9ecf1b0d9f',
 
   'pyyaml_version': '3.12',
 
@@ -56,8 +52,6 @@ vars = {
 
   'mac_xcode_version': 'default',
 
-  'generate_location_tags': False,
-
   # To allow running hooks without parsing the DEPS tree
   'process_deps': True,
 
@@ -94,7 +88,7 @@ deps = {
     'url': (Var("nodejs_git")) + '/node.git@' + (Var("node_version")),
     'condition': 'checkout_node and process_deps',
   },
-  'src/third_party/pyyaml': {
+  'src/electron/vendor/pyyaml': {
     'url': (Var("yaml_git")) + '/pyyaml.git@' + (Var("pyyaml_version")),
     'condition': 'checkout_pyyaml and process_deps',
   },

ELECTRON_VERSION

@@ -1 +1 @@
-18.0.3
+13.0.0-beta.20

README.md

@@ -1,10 +1,11 @@
 [![Electron Logo](https://electronjs.org/images/electron-logo.svg)](https://electronjs.org)
 
-[![CircleCI Build Status](https://circleci.com/gh/electron/electron/tree/main.svg?style=shield)](https://circleci.com/gh/electron/electron/tree/main)
-[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/4lggi9dpjc1qob7k/branch/main?svg=true)](https://ci.appveyor.com/project/electron-bot/electron-ljo26/branch/main)
-[![Electron Discord Invite](https://img.shields.io/discord/745037351163527189?color=%237289DA&label=chat&logo=discord&logoColor=white)](https://discord.com/invite/APGC3k5yaH)
+[![CircleCI Build Status](https://circleci.com/gh/electron/electron/tree/master.svg?style=shield)](https://circleci.com/gh/electron/electron/tree/master)
+[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/4lggi9dpjc1qob7k/branch/master?svg=true)](https://ci.appveyor.com/project/electron-bot/electron-ljo26/branch/master)
+[![devDependency Status](https://david-dm.org/electron/electron/dev-status.svg)](https://david-dm.org/electron/electron?type=dev)
+[![Electron Discord Invite](https://img.shields.io/discord/745037351163527189?color=%237289DA&label=chat&logo=discord&logoColor=white)](https://discord.com/invite/electron)
 
-:memo: Available Translations: 🇨🇳 🇧🇷 🇪🇸 🇯🇵 🇷🇺 🇫🇷 🇺🇸 🇩🇪.
+:memo: Available Translations: 🇨🇳 🇹🇼 🇧🇷 🇪🇸 🇰🇷 🇯🇵 🇷🇺 🇫🇷 🇹🇭 🇳🇱 🇹🇷 🇮🇩 🇺🇦 🇨🇿 🇮🇹 🇵🇱.
 View these docs in other languages at [electron/i18n](https://github.com/electron/i18n/tree/master/content/).
 
 The Electron framework lets you write cross-platform desktop applications
@@ -16,7 +17,7 @@ Follow [@ElectronJS](https://twitter.com/electronjs) on Twitter for important
 announcements.
 
 This project adheres to the Contributor Covenant
-[code of conduct](https://github.com/electron/electron/tree/main/CODE_OF_CONDUCT.md).
+[code of conduct](https://github.com/electron/electron/tree/master/CODE_OF_CONDUCT.md).
 By participating, you are expected to uphold this code. Please report unacceptable
 behavior to [coc@electronjs.org](mailto:coc@electronjs.org).
 
@@ -60,6 +61,7 @@ npm start
 - [electronjs.org/community#boilerplates](https://electronjs.org/community#boilerplates) - Sample starter apps created by the community
 - [electron/simple-samples](https://github.com/electron/simple-samples) - Small applications with ideas for taking them further
 - [electron/electron-api-demos](https://github.com/electron/electron-api-demos) - An Electron app that teaches you how to use Electron
+- [hokein/electron-sample-apps](https://github.com/hokein/electron-sample-apps) - Small demo apps for the various Electron APIs
 
 ## Programmatic usage
 
@@ -80,7 +82,7 @@ const child = proc.spawn(electron)
 
 ### Mirrors
 
-- [China](https://npmmirror.com/mirrors/electron)
+- [China](https://npm.taobao.org/mirrors/electron)
 
 ## Documentation Translations
 
@@ -97,6 +99,6 @@ and more can be found in the [support document](docs/tutorial/support.md#finding
 
 ## License
 
-[MIT](https://github.com/electron/electron/blob/main/LICENSE)
+[MIT](https://github.com/electron/electron/blob/master/LICENSE)
 
 When using the Electron or other GitHub logos, be sure to follow the [GitHub logo guidelines](https://github.com/logos).

SECURITY.md

@@ -10,7 +10,7 @@ Report security bugs in third-party modules to the person or team maintaining th
 
 ## The Electron Security Notification Process
 
-For context on Electron's security notification process, please see the [Notifications](https://github.com/electron/governance/blob/main/wg-security/membership-and-notifications.md#notifications) section of the Security WG's [Membership and Notifications](https://github.com/electron/governance/blob/main/wg-security/membership-and-notifications.md) Governance document.
+For context on Electron's security notification process, please see the [Notifications](https://github.com/electron/governance/blob/master/wg-security/membership-and-notifications.md#notifications) section of the Security WG's [Membership and Notifications](https://github.com/electron/governance/blob/master/wg-security/membership-and-notifications.md) Governance document.
 
 ## Learning More About Security
 

appveyor.yml

@@ -34,7 +34,6 @@ environment:
   GIT_CACHE_PATH: C:\Users\electron\libcc_cache
   ELECTRON_OUT_DIR: Default
   ELECTRON_ENABLE_STACK_DUMPING: 1
-  ELECTRON_ALSO_LOG_TO_STDERR: 1
   MOCHA_REPORTER: mocha-multi-reporters
   MOCHA_MULTI_REPORTERS: mocha-appveyor-reporter, tap
   GOMA_FALLBACK_ON_AUTH_FAILURE: true
@@ -67,31 +66,6 @@ build_script:
   - mkdir src
   - update_depot_tools.bat
   - ps: Move-Item $env:APPVEYOR_BUILD_FOLDER -Destination src\electron
-  - ps: >-
-      if (Test-Path 'env:RAW_GOMA_AUTH') {
-        $env:GOMA_OAUTH2_CONFIG_FILE = "$pwd\.goma_oauth2_config"
-        $env:RAW_GOMA_AUTH | Set-Content $env:GOMA_OAUTH2_CONFIG_FILE
-      }
-  - git clone https://github.com/electron/build-tools.git
-  - cd build-tools
-  - npm install
-  - mkdir third_party
-  - ps: >-
-      node -e "require('./src/utils/goma.js').downloadAndPrepare({ gomaOneForAll: true })"
-  - ps: $env:GN_GOMA_FILE = node -e "console.log(require('./src/utils/goma.js').gnFilePath)"
-  - ps: $env:LOCAL_GOMA_DIR = node -e "console.log(require('./src/utils/goma.js').dir)"
-  - cd ..
-  - ps: .\src\electron\script\start-goma.ps1 -gomaDir $env:LOCAL_GOMA_DIR
-  - ps: >-
-      if (Test-Path 'env:RAW_GOMA_AUTH') {
-        $goma_login = python $env:LOCAL_GOMA_DIR\goma_auth.py info
-        if ($goma_login -eq 'Login as Fermi Planck') {
-          Write-warning "Goma authentication is correct";
-        } else {
-          Write-warning "WARNING!!!!!! Goma authentication is incorrect; please update Goma auth token.";
-          $host.SetShouldExit(1)
-        }
-      }
   - ps: $env:CHROMIUM_BUILDTOOLS_PATH="$pwd\src\buildtools"
   - ps: >-
       if ($env:GN_CONFIG -ne 'release') {
@@ -138,7 +112,7 @@ build_script:
           }
         }
       }
-  - if "%RUN_GCLIENT_SYNC%"=="true" ( gclient sync )
+  - if "%RUN_GCLIENT_SYNC%"=="true" ( gclient sync --with_branch_heads --with_tags --ignore_locks)
   - ps: >-
       if ($env:SAVE_GCLIENT_SRC -eq 'true') {
         # archive current source for future use 
@@ -155,6 +129,21 @@ build_script:
           Write-warning "Failed to add third_party\angle\.git; continuing anyway"
         }
       }
+  - ps: >-
+      if (Test-Path 'env:RAW_GOMA_AUTH') {
+        $env:GOMA_OAUTH2_CONFIG_FILE = "$pwd\.goma_oauth2_config"
+        $env:RAW_GOMA_AUTH | Set-Content $env:GOMA_OAUTH2_CONFIG_FILE
+      }
+  - git clone https://github.com/electron/build-tools.git
+  - cd build-tools
+  - npm install
+  - mkdir third_party
+  - ps: >-
+      node -e "require('./src/utils/goma.js').downloadAndPrepare({ gomaOneForAll: true })"
+  - ps: $env:GN_GOMA_FILE = node -e "console.log(require('./src/utils/goma.js').gnFilePath)"
+  - ps: $env:LOCAL_GOMA_DIR = node -e "console.log(require('./src/utils/goma.js').dir)"
+  - cd ..
+  - ps: .\src\electron\script\start-goma.ps1 -gomaDir $env:LOCAL_GOMA_DIR
   - cd src
   - set BUILD_CONFIG_PATH=//electron/build/args/%GN_CONFIG%.gn 
   - gn gen out/Default "--args=import(\"%BUILD_CONFIG_PATH%\") import(\"%GN_GOMA_FILE%\") %GN_EXTRA_ARGS% "
@@ -220,9 +209,7 @@ test_script:
       }
   - cd electron
   # CalculateNativeWinOcclusion is disabled due to https://bugs.chromium.org/p/chromium/issues/detail?id=1139022
-  - if "%RUN_TESTS%"=="true" ( echo Running main test suite & node script/yarn test -- --trace-uncaught --runners=main --enable-logging=file --log-file=%cd%\electron.log --disable-features=CalculateNativeWinOcclusion )
-  - if "%RUN_TESTS%"=="true" ( echo Running remote test suite & node script/yarn test -- --trace-uncaught --runners=remote --runTestFilesSeperately --enable-logging=file --log-file=%cd%\electron.log --disable-features=CalculateNativeWinOcclusion )
-  - if "%RUN_TESTS%"=="true" ( echo Running native test suite & node script/yarn test -- --trace-uncaught --runners=native --enable-logging=file --log-file=%cd%\electron.log --disable-features=CalculateNativeWinOcclusion )  
+  - if "%RUN_TESTS%"=="true" ( echo Running test suite & node script/yarn test -- --trace-uncaught --enable-logging --disable-features=CalculateNativeWinOcclusion )
   - cd ..
   - if "%RUN_TESTS%"=="true" ( echo Verifying non proprietary ffmpeg & python electron\script\verify-ffmpeg.py --build-dir out\Default --source-root %cd% --ffmpeg-path out\ffmpeg )
   - echo "About to verify mksnapshot"
@@ -230,7 +217,6 @@ test_script:
   - echo "Done verifying mksnapshot"
   - if "%RUN_TESTS%"=="true" ( echo Verifying chromedriver & python electron\script\verify-chromedriver.py --build-dir out\Default --source-root %cd% )
   - echo "Done verifying chromedriver"
-  - if exist %cd%\electron.log ( appveyor-retry appveyor PushArtifact %cd%\electron.log )
 deploy_script:
   - cd electron
   - ps: >-
@@ -245,5 +231,3 @@ deploy_script:
       } elseif (Test-Path Env:\TEST_WOA) {
         node script/release/ci-release-build.js --job=electron-woa-testing --ci=VSTS --armTest --appveyorJobId=$env:APPVEYOR_JOB_ID $env:APPVEYOR_REPO_BRANCH
       }
-on_finish:
-  - if exist src\electron\electron.log ( appveyor-retry appveyor PushArtifact src\electron\electron.log )

azure-pipelines-woa.yml

@@ -1,11 +1,11 @@
-workspace:
-  clean: all
-
 steps:
-- checkout: self
-  path: src\electron
+- task: CopyFiles@2
+  displayName: 'Copy Files to: src\electron'
+  inputs:
+    TargetFolder: src\electron
 
 - script: |
+    cd src\electron
     node script/yarn.js install --frozen-lockfile
   displayName: 'Yarn install'
 
@@ -13,13 +13,13 @@ steps:
     $localArtifactPath = "$pwd\dist.zip"
     $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/dist.zip"
     Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
-    & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -o$(Pipeline.Workspace)\src\out\Default -y $localArtifactPath
+    & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -osrc\out\Default -y $localArtifactPath
   displayName: 'Download and extract dist.zip for test'
   env:
     APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
 
 - powershell: |
-    $localArtifactPath = "$(Pipeline.Workspace)\src\out\Default\shell_browser_ui_unittests.exe"
+    $localArtifactPath = "$pwd\src\out\Default\shell_browser_ui_unittests.exe"
     $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/shell_browser_ui_unittests.exe"
     Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
   displayName: 'Download and extract native test executables for test'
@@ -30,90 +30,58 @@ steps:
     $localArtifactPath = "$pwd\ffmpeg.zip"
     $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/ffmpeg.zip"
     Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
-    & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -o$(Pipeline.Workspace)\src\out\ffmpeg $localArtifactPath
+    & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -osrc\out\ffmpeg $localArtifactPath
   displayName: 'Download and extract ffmpeg.zip for test'
   env:
     APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
 
 - powershell: |
-    $localArtifactPath = "$(Pipeline.Workspace)\src\node_headers.zip"
+    $localArtifactPath = "$pwd\src\node_headers.zip"
     $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/node_headers.zip"
     Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
-    cd $(Pipeline.Workspace)\src
+    cd src
     & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -y node_headers.zip
   displayName: 'Download node headers for test'
   env:
     APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
 
 - powershell: |
-    $localArtifactPath = "$(Pipeline.Workspace)\src\out\Default\electron.lib"
+    $localArtifactPath = "$pwd\src\out\Default\electron.lib"
     $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/electron.lib"
     Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
   displayName: 'Download electron.lib for test'
   env:
     APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
 
-# Uncomment the following block if pdb files are needed to debug issues
-# - powershell: |
-#     try {
-#       $localArtifactPath = "$(Pipeline.Workspace)\src\pdb.zip"
-#       $serverArtifactPath = "$env:APPVEYOR_URL/buildjobs/$env:APPVEYOR_JOB_ID/artifacts/pdb.zip"
-#       Invoke-RestMethod -Method Get -Uri $serverArtifactPath -OutFile $localArtifactPath -Headers @{ "Authorization" = "Bearer $env:APPVEYOR_TOKEN" }
-#       cd $(Pipeline.Workspace)\src
-#       & "${env:ProgramFiles(x86)}\7-Zip\7z.exe" x -y pdb.zip
-#     } catch {
-#       Write-Host "There was an exception encountered while downloading pdb files:" $_.Exception.Message
-#     } finally {
-#       $global:LASTEXITCODE = 0
-#     }
-#   displayName: 'Download pdb files for detailed stacktraces'
-#   env:
-#     APPVEYOR_TOKEN: $(APPVEYOR_TOKEN)
-
 - powershell: |
-    New-Item $(Pipeline.Workspace)\src\out\Default\gen\node_headers\Release -Type directory
-    Copy-Item -path $(Pipeline.Workspace)\src\out\Default\electron.lib -destination $(Pipeline.Workspace)\src\out\Default\gen\node_headers\Release\node.lib
+    New-Item src\out\Default\gen\node_headers\Release -Type directory
+    Copy-Item -path src\out\Default\electron.lib -destination src\out\Default\gen\node_headers\Release\node.lib
   displayName: 'Setup node headers'
 
 - script: |
-    cd $(Pipeline.Workspace)\src
+    cd src
     set npm_config_nodedir=%cd%\out\Default\gen\node_headers
     set npm_config_arch=arm64
     cd electron
-    node script/yarn test --runners=main --enable-logging --disable-features=CalculateNativeWinOcclusion
-  displayName: 'Run Electron Main process tests'
-  env:
-    ELECTRON_ENABLE_STACK_DUMPING: true
-    ELECTRON_OUT_DIR: Default
-    IGNORE_YARN_INSTALL_ERROR: 1
-    ELECTRON_TEST_RESULTS_DIR: junit
-    MOCHA_MULTI_REPORTERS: 'mocha-junit-reporter, tap'
-    MOCHA_REPORTER: mocha-multi-reporters
-
-- script: |
-    cd $(Pipeline.Workspace)\src
-    set npm_config_nodedir=%cd%\out\Default\gen\node_headers
-    set npm_config_arch=arm64
-    cd electron
-    node script/yarn test --runners=remote --enable-logging --disable-features=CalculateNativeWinOcclusion
-  displayName: 'Run Electron Remote based tests'
+    # CalculateNativeWinOcclusion is disabled due to https://bugs.chromium.org/p/chromium/issues/detail?id=1139022
+    node script/yarn test -- --enable-logging --verbose --disable-features=CalculateNativeWinOcclusion
+  displayName: 'Run Electron tests'
   env:
     ELECTRON_OUT_DIR: Default
     IGNORE_YARN_INSTALL_ERROR: 1
     ELECTRON_TEST_RESULTS_DIR: junit
     MOCHA_MULTI_REPORTERS: 'mocha-junit-reporter, tap'
     MOCHA_REPORTER: mocha-multi-reporters
-  condition: succeededOrFailed()
 
 - task: PublishTestResults@2
   displayName: 'Publish Test Results'
   inputs:
     testResultsFiles: '*.xml'
-    searchFolder: '$(Pipeline.Workspace)/src/junit/'
+    searchFolder: '$(System.DefaultWorkingDirectory)/src/junit/'
   condition: always()
 
 - script: |
-    cd $(Pipeline.Workspace)\src
+    cd src
     echo "Verifying non proprietary ffmpeg"
     python electron\script\verify-ffmpeg.py --build-dir out\Default --source-root %cd% --ffmpeg-path out\ffmpeg
   displayName: 'Verify ffmpeg'

build/args/all.gn

@@ -2,20 +2,15 @@ is_electron_build = true
 root_extra_deps = [ "//electron" ]
 
 # Registry of NMVs --> https://github.com/nodejs/node/blob/master/doc/abi_version_registry.json
-node_module_version = 103
+node_module_version = 89
 
 v8_promise_internal_field_count = 1
+v8_typed_array_max_size_in_heap = 0
 v8_embedder_string = "-electron.0"
 
 # TODO: this breaks mksnapshot
 v8_enable_snapshot_native_code_counters = false
 
-# TODO(codebytere): remove when Node.js handles https://chromium-review.googlesource.com/c/v8/v8/+/3211575
-v8_scriptormodule_legacy_lifetime = true
-
-# we use this api
-v8_enable_javascript_promise_hooks = true
-
 enable_cdm_host_verification = false
 proprietary_codecs = true
 ffmpeg_branding = "Chrome"
@@ -27,14 +22,4 @@ dawn_enable_vulkan_validation_layers = false
 # This breaks native node modules
 libcxx_abi_unstable = false
 
-# These are disabled because they cause the zip manifest to differ between
-# testing and release builds.
-# See https://chromium-review.googlesource.com/c/chromium/src/+/2774898.
-enable_pseudolocales = false
-
 is_cfi = false
-
-# Make application name configurable at runtime for cookie crypto
-allow_runtime_configurable_key_storage = true
-
-enable_cet_shadow_stack = false

build/asar.gni

@@ -57,42 +57,4 @@ template("asar") {
              rebase_path(outputs[0]),
            ]
   }
-
-  node_action(target_name + "_header_hash") {
-    invoker_out = invoker.outputs
-
-    deps = [ ":" + invoker.target_name ]
-    sources = invoker.outputs
-
-    script = "//electron/script/gn-asar-hash.js"
-    outputs = [ "$target_gen_dir/asar_hashes/$target_name.hash" ]
-
-    args = [
-      rebase_path(invoker_out[0]),
-      rebase_path(outputs[0]),
-    ]
-  }
-}
-
-template("asar_hashed_info_plist") {
-  node_action(target_name) {
-    assert(defined(invoker.plist_file),
-           "Need plist_file to add hashed assets to")
-    assert(defined(invoker.keys), "Need keys to replace with asset hash")
-    assert(defined(invoker.hash_targets), "Need hash_targets to read hash from")
-
-    deps = invoker.hash_targets
-
-    script = "//electron/script/gn-plist-but-with-hashes.js"
-    inputs = [ invoker.plist_file ]
-    outputs = [ "$target_gen_dir/hashed_plists/$target_name.plist" ]
-    hash_files = []
-    foreach(hash_target, invoker.hash_targets) {
-      hash_files += get_target_outputs(hash_target)
-    }
-    args = [
-             rebase_path(invoker.plist_file),
-             rebase_path(outputs[0]),
-           ] + invoker.keys + rebase_path(hash_files)
-  }
 }

build/dump_syms.py

@@ -39,7 +39,7 @@ def main(dump_syms, binary, out_dir, stamp_file, dsym_file=None):
     args += ["-g", dsym_file]
   args += [binary]
 
-  symbol_data = subprocess.check_output(args).decode(sys.stdout.encoding)
+  symbol_data = subprocess.check_output(args)
   symbol_path = os.path.join(out_dir, get_symbol_path(symbol_data))
   mkdir_p(os.path.dirname(symbol_path))
 

build/fuses/build.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
 
-from collections import OrderedDict
 import json
 import os
 import sys
@@ -50,8 +49,8 @@ const volatile char kFuseWire[] = { /* sentinel */ {sentinel}, /* fuse_version *
 }
 """
 
-with open(os.path.join(dir_path, "fuses.json5"), 'r') as f:
-  fuse_defaults = json.loads(''.join(line for line in f.readlines() if not line.strip()[0] == "/"), object_pairs_hook=OrderedDict)
+with open(os.path.join(dir_path, "fuses.json"), 'r') as f:
+  fuse_defaults = json.load(f)
 
 fuse_version = fuse_defaults['_version']
 del fuse_defaults['_version']

build/fuses/fuses.json

@@ -2,10 +2,5 @@
   "_comment": "Modifying the fuse schema in any breaking way should result in the _version prop being incremented.  NEVER remove a fuse or change its meaning, instead mark it as removed with 'r'",
   "_schema": "0 == off, 1 == on, r == removed fuse",
   "_version": 1,
-  "run_as_node": "1",
-  "cookie_encryption": "0",
-  "node_options": "1",
-  "node_cli_inspect": "1",
-  "embedded_asar_integrity_validation": "0",
-  "only_load_app_from_asar": "0"
+  "run_as_node": "1"
 }

build/generate_node_defines.py

@@ -1,34 +0,0 @@
-import os
-import re
-import sys
-
-DEFINE_EXTRACT_REGEX = re.compile('^ *# *define (\w*)', re.MULTILINE)
-
-def main(outDir, headers):
-  defines = []
-  for filename in headers:
-    with open(filename, 'r') as f:
-      content = f.read()
-      defines += read_defines(content)
-
-  push_and_undef = ''
-  for define in defines:
-    push_and_undef += '#pragma push_macro("%s")\n' % define
-    push_and_undef += '#undef %s\n' % define
-  with open(os.path.join(outDir, 'push_and_undef_node_defines.h'), 'w') as o:
-    o.write(push_and_undef)
-
-  pop = ''
-  for define in defines:
-    pop += '#pragma pop_macro("%s")\n' % define
-  with open(os.path.join(outDir, 'pop_node_defines.h'), 'w') as o:
-    o.write(pop)
-
-def read_defines(content):
-  defines = []
-  for match in DEFINE_EXTRACT_REGEX.finditer(content):
-    defines.append(match.group(1))
-  return defines
-
-if __name__ == '__main__':
-  main(sys.argv[1], sys.argv[2:])

build/mac/make_locale_dirs.py

@@ -8,7 +8,6 @@
 # require any direct Cocoa locale support.
 
 import os
-import errno
 import sys
 
 
@@ -17,7 +16,7 @@ def main(args):
     try:
       os.makedirs(dirname)
     except OSError as e:
-      if e.errno == errno.EEXIST:
+      if e.errno == os.errno.EEXIST:
         # It's OK if it already exists
         pass
       else:

build/npm-run.py

@@ -16,5 +16,5 @@ try:
     subprocess.check_output(args, stderr=subprocess.STDOUT)
 except subprocess.CalledProcessError as e:
     error_msg = "NPM script '{}' failed with code '{}':\n".format(sys.argv[2], e.returncode)
-    print(error_msg + e.output.decode('utf8'))
+    print(error_msg + e.output.decode('ascii'))
     sys.exit(e.returncode)

build/npm.gni

@@ -5,8 +5,8 @@ template("npm_action") {
 
   action("npm_pre_flight_" + target_name) {
     inputs = [
-      "//electron/package.json",
-      "//electron/yarn.lock",
+      "package.json",
+      "yarn.lock",
     ]
     script = "//electron/build/npm-run.py"
 

build/profile_toolchain.py

@@ -1,12 +1,9 @@
-from __future__ import unicode_literals
-
+from __future__ import with_statement
 import contextlib
 import sys
 import os
 import optparse
 import json
-import re
-import subprocess
 
 sys.path.append("%s/../../build" % os.path.dirname(os.path.realpath(__file__)))
 
@@ -36,56 +33,36 @@ def calculate_hash(root):
         return CalculateHash('.', None)
 
 def windows_installed_software():
-    powershell_command = [
-        "Get-CimInstance",
-        "-Namespace",
-        "root\cimv2",
-        "-Class",
-        "Win32_product",
-        "|",
-        "Select",
-        "vendor,",
-        "description,",
-        "@{l='install_location';e='InstallLocation'},",
-        "@{l='install_date';e='InstallDate'},",
-        "@{l='install_date_2';e='InstallDate2'},",
-        "caption,",
-        "version,",
-        "name,",
-        "@{l='sku_number';e='SKUNumber'}",
-        "|",
-        "ConvertTo-Json",
-    ]
+    import win32com.client
+    strComputer = "."
+    objWMIService = win32com.client.Dispatch("WbemScripting.SWbemLocator")
+    objSWbemServices = objWMIService.ConnectServer(strComputer, "root\cimv2")
+    colItems = objSWbemServices.ExecQuery("Select * from Win32_Product")
+    items = []
 
-    proc = subprocess.Popen(
-        ["powershell.exe", "-Command", "-"],
-        stdin=subprocess.PIPE,
-        stdout=subprocess.PIPE,
-    )
+    for objItem in colItems:
+        item = {}
+        if objItem.Caption:
+            item['caption'] = objItem.Caption
+        if objItem.Caption:
+            item['description'] = objItem.Description
+        if objItem.InstallDate:
+            item['install_date'] = objItem.InstallDate
+        if objItem.InstallDate2:
+            item['install_date_2'] = objItem.InstallDate2
+        if objItem.InstallLocation:
+            item['install_location'] = objItem.InstallLocation
+        if objItem.Name:
+            item['name'] = objItem.Name
+        if objItem.SKUNumber:
+            item['sku_number'] = objItem.SKUNumber
+        if objItem.Vendor:
+            item['vendor'] = objItem.Vendor
+        if objItem.Version:
+            item['version'] = objItem.Version
+        items.append(item)
 
-    stdout, _ = proc.communicate(" ".join(powershell_command).encode("utf-8"))
-
-    if proc.returncode != 0:
-        raise RuntimeError("Failed to get list of installed software")
-
-    # On AppVeyor there's other output related to PSReadline,
-    # so grab only the JSON output and ignore everything else
-    json_match = re.match(
-        r".*(\[.*{.*}.*\]).*", stdout.decode("utf-8"), re.DOTALL
-    )
-
-    if not json_match:
-        raise RuntimeError(
-            "Couldn't find JSON output for list of installed software"
-        )
-
-    # Filter out missing keys
-    return list(
-        map(
-            lambda info: {k: info[k] for k in info if info[k]},
-            json.loads(json_match.group(1)),
-        )
-    )
+    return items
 
 
 def windows_profile():
@@ -112,7 +89,7 @@ def windows_profile():
 
 def main(options):
     if sys.platform == 'win32':
-        with open(options.output_json, 'w') as f:
+        with open(options.output_json, 'wb') as f:
             json.dump(windows_profile(), f)
     else:
         raise OSError("Unsupported OS")

build/webpack/webpack.config.base.js

@@ -61,6 +61,13 @@ module.exports = ({
       );
     }
 
+    if (defines.ENABLE_REMOTE_MODULE === 'false') {
+      ignoredModules.push(
+        '@electron/internal/browser/remote/server',
+        '@electron/internal/renderer/api/remote'
+      );
+    }
+
     if (defines.ENABLE_VIEWS_API === 'false') {
       ignoredModules.push(
         '@electron/internal/browser/api/views/image-view.js'

build/webpack/webpack.gni

@@ -36,7 +36,7 @@ template("webpack_build") {
           rebase_path("$target_gen_dir/buildflags/buildflags.h"),
       "--env.mode=" + mode,
     ]
-    deps += [ "//electron/buildflags" ]
+    deps += [ "buildflags" ]
 
     outputs = [ invoker.out_file ]
   }

build/zip.py

@@ -31,10 +31,15 @@ PATHS_TO_SKIP = [
   # //chrome/browser/resources/ssl/ssl_error_assistant, but we don't need to
   # ship it.
   'pyproto',
+  # On Windows, this binary doesn't exist (the crashpad handler is built-in).
+  # On MacOS, the binary is called 'chrome_crashpad_handler' and is inside the
+  # app bundle.
+  # On Linux, we don't use crashpad, but this binary is still built for some
+  # reason. Exclude it from the zip.
+  './crashpad_handler',
   # Skip because these are outputs that we don't need.
   'resources/inspector',
-  'gen/third_party/devtools-frontend/src',
-  'gen/ui/webui'
+  'gen/third_party/devtools-frontend/src'
 ]
 
 def skip_path(dep, dist_zip, target_cpu):
@@ -66,7 +71,7 @@ def execute(argv):
     raise e
 
 def main(argv):
-  dist_zip, runtime_deps, target_cpu, _, flatten_val, flatten_relative_to = argv
+  dist_zip, runtime_deps, target_cpu, _, flatten_val = argv
   should_flatten = flatten_val == "true"
   dist_files = set()
   with open(runtime_deps) as f:
@@ -93,18 +98,11 @@ def main(argv):
             if basename == 'chrome_sandbox'
             else dep
           )
-          name_to_write = arcname
-          if should_flatten:
-            if flatten_relative_to:
-              if name_to_write.startswith(flatten_relative_to):
-                name_to_write = name_to_write[len(flatten_relative_to):]
-              else:
-                name_to_write = os.path.basename(arcname)
-            else:
-              name_to_write = os.path.basename(arcname)
           z.write(
             dep,
-            name_to_write,
+            os.path.basename(arcname)
+            if should_flatten
+            else arcname,
           )
 
 if __name__ == '__main__':

build/zip_libcxx.py

@@ -1,47 +0,0 @@
-#!/usr/bin/env python
-from __future__ import print_function
-import os
-import subprocess
-import sys
-import zipfile
-
-def execute(argv):
-  try:
-    output = subprocess.check_output(argv, stderr=subprocess.STDOUT)
-    return output
-  except subprocess.CalledProcessError as e:
-    print(e.output)
-    raise e
-
-def get_object_files(base_path, archive_name):
-  archive_file = os.path.join(base_path, archive_name)
-  output = execute(['nm', '-g', archive_file]).decode('ascii')
-  object_files = set()
-  lines = output.split("\n")
-  for line in lines:
-    if line.startswith(base_path):
-      object_file = line.split(":")[0]
-      object_files.add(object_file)
-    if line.startswith('nm: '):
-      object_file = line.split(":")[1].lstrip()
-      object_files.add(object_file)
-  return list(object_files) + [archive_file]
-
-def main(argv):
-  dist_zip, = argv
-  out_dir = os.path.dirname(dist_zip)
-  base_path_libcxx = os.path.join(out_dir, 'obj/buildtools/third_party/libc++')
-  base_path_libcxxabi = os.path.join(out_dir, 'obj/buildtools/third_party/libc++abi')
-  object_files_libcxx = get_object_files(base_path_libcxx, 'libc++.a')
-  object_files_libcxxabi = get_object_files(base_path_libcxxabi, 'libc++abi.a')
-  with zipfile.ZipFile(
-      dist_zip, 'w', zipfile.ZIP_DEFLATED, allowZip64=True
-    ) as z:
-      object_files_libcxx.sort()
-      for object_file in object_files_libcxx:
-        z.write(object_file, os.path.relpath(object_file, base_path_libcxx))
-      for object_file in object_files_libcxxabi:
-        z.write(object_file, os.path.relpath(object_file, base_path_libcxxabi))
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv[1:]))

buildflags/BUILD.gn

@@ -12,6 +12,7 @@ buildflag_header("buildflags") {
     "ENABLE_DESKTOP_CAPTURER=$enable_desktop_capturer",
     "ENABLE_RUN_AS_NODE=$enable_run_as_node",
     "ENABLE_OSR=$enable_osr",
+    "ENABLE_REMOTE_MODULE=$enable_remote_module",
     "ENABLE_VIEWS_API=$enable_views_api",
     "ENABLE_PDF_VIEWER=$enable_pdf_viewer",
     "ENABLE_TTS=$enable_tts",

buildflags/buildflags.gni

@@ -10,6 +10,8 @@ declare_args() {
 
   enable_osr = true
 
+  enable_remote_module = true
+
   enable_views_api = true
 
   enable_pdf_viewer = true

chromium_src/BUILD.gn

@@ -2,7 +2,6 @@
 # Use of this source code is governed by the MIT license that can be
 # found in the LICENSE file.
 
-import("//build/config/ozone.gni")
 import("//build/config/ui.gni")
 import("//components/spellcheck/spellcheck_build_features.gni")
 import("//electron/buildflags/buildflags.gni")
@@ -15,21 +14,14 @@ static_library("chrome") {
   sources = [
     "//chrome/browser/accessibility/accessibility_ui.cc",
     "//chrome/browser/accessibility/accessibility_ui.h",
-    "//chrome/browser/app_mode/app_mode_utils.cc",
-    "//chrome/browser/app_mode/app_mode_utils.h",
-    "//chrome/browser/browser_features.cc",
-    "//chrome/browser/browser_features.h",
     "//chrome/browser/browser_process.cc",
     "//chrome/browser/browser_process.h",
     "//chrome/browser/devtools/devtools_contents_resizing_strategy.cc",
     "//chrome/browser/devtools/devtools_contents_resizing_strategy.h",
     "//chrome/browser/devtools/devtools_embedder_message_dispatcher.cc",
     "//chrome/browser/devtools/devtools_embedder_message_dispatcher.h",
-    "//chrome/browser/devtools/devtools_eye_dropper.cc",
-    "//chrome/browser/devtools/devtools_eye_dropper.h",
     "//chrome/browser/devtools/devtools_file_system_indexer.cc",
     "//chrome/browser/devtools/devtools_file_system_indexer.h",
-    "//chrome/browser/devtools/devtools_settings.h",
     "//chrome/browser/extensions/global_shortcut_listener.cc",
     "//chrome/browser/extensions/global_shortcut_listener.h",
     "//chrome/browser/icon_loader.cc",
@@ -42,8 +34,6 @@ static_library("chrome") {
     "//chrome/browser/net/proxy_config_monitor.h",
     "//chrome/browser/net/proxy_service_factory.cc",
     "//chrome/browser/net/proxy_service_factory.h",
-    "//chrome/browser/platform_util.cc",
-    "//chrome/browser/platform_util.h",
     "//chrome/browser/predictors/preconnect_manager.cc",
     "//chrome/browser/predictors/preconnect_manager.h",
     "//chrome/browser/predictors/predictors_features.cc",
@@ -52,35 +42,14 @@ static_library("chrome") {
     "//chrome/browser/predictors/proxy_lookup_client_impl.h",
     "//chrome/browser/predictors/resolve_host_client_impl.cc",
     "//chrome/browser/predictors/resolve_host_client_impl.h",
-    "//chrome/browser/process_singleton.h",
-    "//chrome/browser/process_singleton_internal.cc",
-    "//chrome/browser/process_singleton_internal.h",
-    "//chrome/browser/ui/exclusive_access/exclusive_access_bubble_type.cc",
-    "//chrome/browser/ui/exclusive_access/exclusive_access_bubble_type.h",
-    "//chrome/browser/ui/exclusive_access/exclusive_access_controller_base.cc",
-    "//chrome/browser/ui/exclusive_access/exclusive_access_controller_base.h",
-    "//chrome/browser/ui/exclusive_access/exclusive_access_manager.cc",
-    "//chrome/browser/ui/exclusive_access/exclusive_access_manager.h",
-    "//chrome/browser/ui/exclusive_access/fullscreen_controller.cc",
-    "//chrome/browser/ui/exclusive_access/fullscreen_controller.h",
-    "//chrome/browser/ui/exclusive_access/fullscreen_within_tab_helper.cc",
-    "//chrome/browser/ui/exclusive_access/fullscreen_within_tab_helper.h",
-    "//chrome/browser/ui/exclusive_access/keyboard_lock_controller.cc",
-    "//chrome/browser/ui/exclusive_access/keyboard_lock_controller.h",
-    "//chrome/browser/ui/exclusive_access/mouse_lock_controller.cc",
-    "//chrome/browser/ui/exclusive_access/mouse_lock_controller.h",
-    "//chrome/browser/ui/views/eye_dropper/eye_dropper.cc",
-    "//chrome/browser/ui/views/eye_dropper/eye_dropper.h",
-    "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.cc",
-    "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.h",
+    "//chrome/browser/ssl/security_state_tab_helper.cc",
+    "//chrome/browser/ssl/security_state_tab_helper.h",
+    "//chrome/browser/ui/views/autofill/autofill_popup_view_utils.cc",
+    "//chrome/browser/ui/views/autofill/autofill_popup_view_utils.h",
     "//extensions/browser/app_window/size_constraints.cc",
     "//extensions/browser/app_window/size_constraints.h",
   ]
 
-  if (is_posix) {
-    sources += [ "//chrome/browser/process_singleton_posix.cc" ]
-  }
-
   if (is_mac) {
     sources += [
       "//chrome/browser/extensions/global_shortcut_listener_mac.h",
@@ -88,10 +57,6 @@ static_library("chrome") {
       "//chrome/browser/icon_loader_mac.mm",
       "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.h",
       "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.mm",
-      "//chrome/browser/media/webrtc/window_icon_util_mac.mm",
-      "//chrome/browser/process_singleton_mac.mm",
-      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.h",
-      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.mm",
     ]
   }
 
@@ -100,29 +65,13 @@ static_library("chrome") {
       "//chrome/browser/extensions/global_shortcut_listener_win.cc",
       "//chrome/browser/extensions/global_shortcut_listener_win.h",
       "//chrome/browser/icon_loader_win.cc",
-      "//chrome/browser/media/webrtc/window_icon_util_win.cc",
-      "//chrome/browser/process_singleton_win.cc",
-      "//chrome/browser/ui/frame/window_frame_util.h",
-      "//chrome/browser/ui/view_ids.h",
       "//chrome/browser/win/chrome_process_finder.cc",
       "//chrome/browser/win/chrome_process_finder.h",
-      "//chrome/browser/win/titlebar_config.h",
       "//chrome/child/v8_crashpad_support_win.cc",
       "//chrome/child/v8_crashpad_support_win.h",
     ]
   }
 
-  if (is_linux) {
-    sources += [ "//chrome/browser/media/webrtc/window_icon_util_ozone.cc" ]
-  }
-
-  if (use_aura) {
-    sources += [
-      "//chrome/browser/platform_util_aura.cc",
-      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_aura.cc",
-    ]
-  }
-
   public_deps = [
     "//chrome/browser:dev_ui_browser_resources",
     "//chrome/common",
@@ -130,20 +79,25 @@ static_library("chrome") {
     "//components/keyed_service/content",
     "//components/paint_preview/buildflags",
     "//components/proxy_config",
-    "//components/services/language_detection/public/mojom",
+    "//components/security_state/content",
     "//content/public/browser",
     "//services/strings",
   ]
 
   deps = [
     "//chrome/browser:resource_prefetch_predictor_proto",
+    "//chrome/services/speech:buildflags",
     "//components/optimization_guide/proto:optimization_guide_proto",
   ]
 
   if (is_linux) {
     sources += [ "//chrome/browser/icon_loader_auralinux.cc" ]
-    if (use_ozone) {
-      deps += [ "//ui/ozone" ]
+    if (use_x11) {
+      sources += [
+        "//chrome/browser/extensions/global_shortcut_listener_x11.cc",
+        "//chrome/browser/extensions/global_shortcut_listener_x11.h",
+      ]
+    } else if (use_ozone) {
       sources += [
         "//chrome/browser/extensions/global_shortcut_listener_ozone.cc",
         "//chrome/browser/extensions/global_shortcut_listener_ozone.h",
@@ -171,7 +125,6 @@ static_library("chrome") {
 
   if (enable_desktop_capturer) {
     sources += [
-      "//chrome/browser/media/webrtc/desktop_media_list.cc",
       "//chrome/browser/media/webrtc/desktop_media_list.h",
       "//chrome/browser/media/webrtc/desktop_media_list_base.cc",
       "//chrome/browser/media/webrtc/desktop_media_list_base.h",
@@ -183,6 +136,62 @@ static_library("chrome") {
     deps += [ "//ui/snapshot" ]
   }
 
+  if (enable_color_chooser) {
+    sources += [
+      "//chrome/browser/platform_util.cc",
+      "//chrome/browser/platform_util.h",
+      "//chrome/browser/ui/browser_dialogs.h",
+      "//chrome/browser/ui/color_chooser.h",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper.cc",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper.h",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.cc",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.h",
+    ]
+
+    if (use_aura) {
+      sources += [
+        "//chrome/browser/platform_util_aura.cc",
+        "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_aura.cc",
+      ]
+
+      if (!is_win) {
+        sources += [
+          "//chrome/browser/ui/views/color_chooser_aura.cc",
+          "//chrome/browser/ui/views/color_chooser_aura.h",
+        ]
+      }
+
+      deps += [ "//components/feature_engagement" ]
+    }
+
+    if (is_mac) {
+      sources += [
+        "//chrome/browser/media/webrtc/window_icon_util_mac.mm",
+        "//chrome/browser/ui/cocoa/color_chooser_mac.h",
+        "//chrome/browser/ui/cocoa/color_chooser_mac.mm",
+        "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.h",
+        "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.mm",
+      ]
+      deps += [
+        "//components/remote_cocoa/app_shim",
+        "//components/remote_cocoa/browser",
+      ]
+    }
+
+    if (is_win) {
+      sources += [
+        "//chrome/browser/media/webrtc/window_icon_util_win.cc",
+        "//chrome/browser/ui/views/color_chooser_dialog.cc",
+        "//chrome/browser/ui/views/color_chooser_dialog.h",
+        "//chrome/browser/ui/views/color_chooser_win.cc",
+      ]
+    }
+
+    if (is_linux) {
+      sources += [ "//chrome/browser/media/webrtc/window_icon_util_x11.cc" ]
+    }
+  }
+
   if (enable_widevine) {
     sources += [
       "//chrome/renderer/media/chrome_key_systems.cc",
@@ -195,31 +204,22 @@ static_library("chrome") {
 
   if (enable_basic_printing) {
     sources += [
-      "//chrome/browser/bad_message.cc",
-      "//chrome/browser/bad_message.h",
       "//chrome/browser/printing/print_job.cc",
       "//chrome/browser/printing/print_job.h",
       "//chrome/browser/printing/print_job_manager.cc",
       "//chrome/browser/printing/print_job_manager.h",
       "//chrome/browser/printing/print_job_worker.cc",
       "//chrome/browser/printing/print_job_worker.h",
-      "//chrome/browser/printing/print_job_worker_oop.cc",
-      "//chrome/browser/printing/print_job_worker_oop.h",
       "//chrome/browser/printing/print_view_manager_base.cc",
       "//chrome/browser/printing/print_view_manager_base.h",
+      "//chrome/browser/printing/print_view_manager_basic.cc",
+      "//chrome/browser/printing/print_view_manager_basic.h",
       "//chrome/browser/printing/printer_query.cc",
       "//chrome/browser/printing/printer_query.h",
       "//chrome/browser/printing/printing_service.cc",
       "//chrome/browser/printing/printing_service.h",
     ]
 
-    if (enable_oop_printing) {
-      sources += [
-        "//chrome/browser/printing/print_backend_service_manager.cc",
-        "//chrome/browser/printing/print_backend_service_manager.h",
-      ]
-    }
-
     public_deps += [
       "//chrome/services/printing:lib",
       "//components/printing/browser",
@@ -227,7 +227,6 @@ static_library("chrome") {
       "//components/services/print_compositor",
       "//components/services/print_compositor/public/cpp",
       "//components/services/print_compositor/public/mojom",
-      "//printing/backend",
     ]
 
     deps += [
@@ -239,6 +238,8 @@ static_library("chrome") {
       sources += [
         "//chrome/browser/printing/pdf_to_emf_converter.cc",
         "//chrome/browser/printing/pdf_to_emf_converter.h",
+        "//chrome/utility/printing_handler.cc",
+        "//chrome/utility/printing_handler.h",
       ]
     }
   }
@@ -249,16 +250,8 @@ static_library("chrome") {
       "//chrome/browser/picture_in_picture/picture_in_picture_window_manager.h",
       "//chrome/browser/ui/views/overlay/back_to_tab_image_button.cc",
       "//chrome/browser/ui/views/overlay/back_to_tab_image_button.h",
-      "//chrome/browser/ui/views/overlay/back_to_tab_label_button.cc",
       "//chrome/browser/ui/views/overlay/close_image_button.cc",
       "//chrome/browser/ui/views/overlay/close_image_button.h",
-      "//chrome/browser/ui/views/overlay/constants.h",
-      "//chrome/browser/ui/views/overlay/document_overlay_window_views.cc",
-      "//chrome/browser/ui/views/overlay/document_overlay_window_views.h",
-      "//chrome/browser/ui/views/overlay/hang_up_button.cc",
-      "//chrome/browser/ui/views/overlay/hang_up_button.h",
-      "//chrome/browser/ui/views/overlay/overlay_window_image_button.cc",
-      "//chrome/browser/ui/views/overlay/overlay_window_image_button.h",
       "//chrome/browser/ui/views/overlay/overlay_window_views.cc",
       "//chrome/browser/ui/views/overlay/overlay_window_views.h",
       "//chrome/browser/ui/views/overlay/playback_image_button.cc",
@@ -267,20 +260,13 @@ static_library("chrome") {
       "//chrome/browser/ui/views/overlay/resize_handle_button.h",
       "//chrome/browser/ui/views/overlay/skip_ad_label_button.cc",
       "//chrome/browser/ui/views/overlay/skip_ad_label_button.h",
-      "//chrome/browser/ui/views/overlay/toggle_camera_button.cc",
-      "//chrome/browser/ui/views/overlay/toggle_camera_button.h",
-      "//chrome/browser/ui/views/overlay/toggle_microphone_button.cc",
-      "//chrome/browser/ui/views/overlay/toggle_microphone_button.h",
       "//chrome/browser/ui/views/overlay/track_image_button.cc",
       "//chrome/browser/ui/views/overlay/track_image_button.h",
-      "//chrome/browser/ui/views/overlay/video_overlay_window_views.cc",
-      "//chrome/browser/ui/views/overlay/video_overlay_window_views.h",
     ]
 
     deps += [
       "//chrome/app/vector_icons",
       "//components/vector_icons:vector_icons",
-      "//ui/views/controls/webview",
     ]
   }
 
@@ -300,8 +286,6 @@ static_library("chrome") {
       sources += [
         "//chrome/browser/pdf/pdf_extension_util.cc",
         "//chrome/browser/pdf/pdf_extension_util.h",
-        "//chrome/browser/pdf/pdf_frame_util.cc",
-        "//chrome/browser/pdf/pdf_frame_util.h",
         "//chrome/renderer/pepper/chrome_pdf_print_client.cc",
         "//chrome/renderer/pepper/chrome_pdf_print_client.h",
       ]
@@ -346,13 +330,17 @@ source_set("plugins") {
   sources += [
     "//chrome/renderer/pepper/chrome_renderer_pepper_host_factory.cc",
     "//chrome/renderer/pepper/chrome_renderer_pepper_host_factory.h",
-    "//chrome/renderer/pepper/pepper_flash_font_file_host.cc",
-    "//chrome/renderer/pepper/pepper_flash_font_file_host.h",
     "//chrome/renderer/pepper/pepper_shared_memory_message_filter.cc",
     "//chrome/renderer/pepper/pepper_shared_memory_message_filter.h",
   ]
   if (enable_pdf_viewer) {
-    deps += [ "//components/pdf/renderer" ]
+    sources += [
+      "//chrome/renderer/pepper/pepper_flash_font_file_host.cc",
+      "//chrome/renderer/pepper/pepper_flash_font_file_host.h",
+    ]
+    if (enable_pdf_viewer) {
+      deps += [ "//components/pdf/renderer" ]
+    }
   }
   deps += [
     "//components/strings",

chromium_src/chrome/browser/certificate_manager_model.cc

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "shell/browser/certificate_manager_model.h"
+#include "chrome/browser/certificate_manager_model.h"
 
 #include <utility>
 
@@ -133,7 +133,7 @@ void CertificateManagerModel::DidGetCertDBOnUIThread(
     CreationCallback callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
-  auto model = base::WrapUnique(
+  std::unique_ptr<CertificateManagerModel> model(
       new CertificateManagerModel(cert_db, is_user_db_available));
   std::move(callback).Run(std::move(model));
 }
@@ -157,14 +157,15 @@ void CertificateManagerModel::GetCertDBOnIOThread(
     CreationCallback callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
-  auto split_callback = base::SplitOnceCallback(base::BindOnce(
-      &CertificateManagerModel::DidGetCertDBOnIOThread, std::move(callback)));
+  auto did_get_cert_db_callback = base::AdaptCallbackForRepeating(
+      base::BindOnce(&CertificateManagerModel::DidGetCertDBOnIOThread,
+                     std::move(callback)));
 
-  net::NSSCertDatabase* cert_db = GetNSSCertDatabaseForResourceContext(
-      context, std::move(split_callback.first));
+  net::NSSCertDatabase* cert_db =
+      GetNSSCertDatabaseForResourceContext(context, did_get_cert_db_callback);
 
   // If the NSS database was already available, |cert_db| is non-null and
   // |did_get_cert_db_callback| has not been called. Call it explicitly.
   if (cert_db)
-    std::move(split_callback.second).Run(cert_db);
+    did_get_cert_db_callback.Run(cert_db);
 }

chromium_src/chrome/browser/certificate_manager_model.h

@@ -2,13 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ELECTRON_SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
-#define ELECTRON_SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
+#ifndef CHROME_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
+#define CHROME_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
 
+#include <map>
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
+#include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "net/cert/nss_cert_database.h"
 
@@ -30,10 +32,6 @@ class CertificateManagerModel {
   static void Create(content::BrowserContext* browser_context,
                      CreationCallback callback);
 
-  // disable copy
-  CertificateManagerModel(const CertificateManagerModel&) = delete;
-  CertificateManagerModel& operator=(const CertificateManagerModel&) = delete;
-
   ~CertificateManagerModel();
 
   bool is_user_db_available() const { return is_user_db_available_; }
@@ -111,6 +109,8 @@ class CertificateManagerModel {
   // Whether the certificate database has a public slot associated with the
   // profile. If not set, importing certificates is not allowed with this model.
   bool is_user_db_available_;
+
+  DISALLOW_COPY_AND_ASSIGN(CertificateManagerModel);
 };
 
-#endif  // ELECTRON_SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
+#endif  // CHROME_BROWSER_CERTIFICATE_MANAGER_MODEL_H_

chromium_src/chrome/browser/process_singleton.h

@@ -0,0 +1,188 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_PROCESS_SINGLETON_H_
+#define CHROME_BROWSER_PROCESS_SINGLETON_H_
+
+#if defined(OS_WIN)
+#include <windows.h>
+#endif  // defined(OS_WIN)
+
+#include <set>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/logging.h"
+#include "base/memory/ref_counted.h"
+#include "base/process/process.h"
+#include "base/sequence_checker.h"
+#include "ui/gfx/native_widget_types.h"
+
+#if defined(OS_POSIX) && !defined(OS_ANDROID)
+#include "base/files/scoped_temp_dir.h"
+#endif
+
+#if defined(OS_WIN)
+#include "base/win/message_window.h"
+#endif  // defined(OS_WIN)
+
+namespace base {
+class CommandLine;
+}
+
+// ProcessSingleton ----------------------------------------------------------
+//
+// This class allows different browser processes to communicate with
+// each other.  It is named according to the user data directory, so
+// we can be sure that no more than one copy of the application can be
+// running at once with a given data directory.
+//
+// Implementation notes:
+// - the Windows implementation uses an invisible global message window;
+// - the Linux implementation uses a Unix domain socket in the user data dir.
+
+class ProcessSingleton {
+ public:
+  enum NotifyResult {
+    PROCESS_NONE,
+    PROCESS_NOTIFIED,
+    PROFILE_IN_USE,
+    LOCK_ERROR,
+  };
+
+  // Implement this callback to handle notifications from other processes. The
+  // callback will receive the command line and directory with which the other
+  // Chrome process was launched. Return true if the command line will be
+  // handled within the current browser instance or false if the remote process
+  // should handle it (i.e., because the current process is shutting down).
+  using NotificationCallback = base::RepeatingCallback<bool(
+      const base::CommandLine::StringVector& command_line,
+      const base::FilePath& current_directory)>;
+
+  ProcessSingleton(const base::FilePath& user_data_dir,
+                   const NotificationCallback& notification_callback);
+  ~ProcessSingleton();
+
+  // Notify another process, if available. Otherwise sets ourselves as the
+  // singleton instance. Returns PROCESS_NONE if we became the singleton
+  // instance. Callers are guaranteed to either have notified an existing
+  // process or have grabbed the singleton (unless the profile is locked by an
+  // unreachable process).
+  // TODO(brettw): Make the implementation of this method non-platform-specific
+  // by making Linux re-use the Windows implementation.
+  NotifyResult NotifyOtherProcessOrCreate();
+  void StartListeningOnSocket();
+  void OnBrowserReady();
+
+  // Sets ourself up as the singleton instance.  Returns true on success.  If
+  // false is returned, we are not the singleton instance and the caller must
+  // exit.
+  // NOTE: Most callers should generally prefer NotifyOtherProcessOrCreate() to
+  // this method, only callers for whom failure is preferred to notifying
+  // another process should call this directly.
+  bool Create();
+
+  // Clear any lock state during shutdown.
+  void Cleanup();
+
+#if defined(OS_POSIX) && !defined(OS_ANDROID)
+  static void DisablePromptForTesting();
+#endif
+#if defined(OS_WIN)
+  // Called to query whether to kill a hung browser process that has visible
+  // windows. Return true to allow killing the hung process.
+  using ShouldKillRemoteProcessCallback = base::RepeatingCallback<bool()>;
+  void OverrideShouldKillRemoteProcessCallbackForTesting(
+      const ShouldKillRemoteProcessCallback& display_dialog_callback);
+#endif
+
+ protected:
+  // Notify another process, if available.
+  // Returns true if another process was found and notified, false if we should
+  // continue with the current process.
+  // On Windows, Create() has to be called before this.
+  NotifyResult NotifyOtherProcess();
+
+#if defined(OS_POSIX) && !defined(OS_ANDROID)
+  // Exposed for testing.  We use a timeout on Linux, and in tests we want
+  // this timeout to be short.
+  NotifyResult NotifyOtherProcessWithTimeout(
+      const base::CommandLine& command_line,
+      int retry_attempts,
+      const base::TimeDelta& timeout,
+      bool kill_unresponsive);
+  NotifyResult NotifyOtherProcessWithTimeoutOrCreate(
+      const base::CommandLine& command_line,
+      int retry_attempts,
+      const base::TimeDelta& timeout);
+  void OverrideCurrentPidForTesting(base::ProcessId pid);
+  void OverrideKillCallbackForTesting(
+      const base::RepeatingCallback<void(int)>& callback);
+#endif
+
+ private:
+  NotificationCallback notification_callback_;  // Handler for notifications.
+
+#if defined(OS_WIN)
+  HWND remote_window_ = nullptr;     // The HWND_MESSAGE of another browser.
+  base::win::MessageWindow window_;  // The message-only window.
+  bool is_virtualized_ =
+      false;  // Stuck inside Microsoft Softricity VM environment.
+  HANDLE lock_file_ = INVALID_HANDLE_VALUE;
+  base::FilePath user_data_dir_;
+  ShouldKillRemoteProcessCallback should_kill_remote_process_callback_;
+#elif defined(OS_POSIX) && !defined(OS_ANDROID)
+  // Start listening to the socket.
+  void StartListening(int sock);
+
+  // Return true if the given pid is one of our child processes.
+  // Assumes that the current pid is the root of all pids of the current
+  // instance.
+  bool IsSameChromeInstance(pid_t pid);
+
+  // Extract the process's pid from a symbol link path and if it is on
+  // the same host, kill the process, unlink the lock file and return true.
+  // If the process is part of the same chrome instance, unlink the lock file
+  // and return true without killing it.
+  // If the process is on a different host, return false.
+  bool KillProcessByLockPath();
+
+  // Default function to kill a process, overridable by tests.
+  void KillProcess(int pid);
+
+  // Allow overriding for tests.
+  base::ProcessId current_pid_;
+
+  // Function to call when the other process is hung and needs to be killed.
+  // Allows overriding for tests.
+  base::Callback<void(int)> kill_callback_;
+
+  // Path in file system to the socket.
+  base::FilePath socket_path_;
+
+  // Path in file system to the lock.
+  base::FilePath lock_path_;
+
+  // Path in file system to the cookie file.
+  base::FilePath cookie_path_;
+
+  // Temporary directory to hold the socket.
+  base::ScopedTempDir socket_dir_;
+
+  // Helper class for linux specific messages.  LinuxWatcher is ref counted
+  // because it posts messages between threads.
+  class LinuxWatcher;
+  scoped_refptr<LinuxWatcher> watcher_;
+  int sock_ = -1;
+  bool listen_on_ready_ = false;
+#endif
+
+  SEQUENCE_CHECKER(sequence_checker_);
+
+  DISALLOW_COPY_AND_ASSIGN(ProcessSingleton);
+};
+
+#endif  // CHROME_BROWSER_PROCESS_SINGLETON_H_

chromium_src/chrome/browser/process_singleton_win.cc

@@ -0,0 +1,314 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/process_singleton.h"
+
+#include <shellapi.h>
+
+#include "base/base_paths.h"
+#include "base/bind.h"
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/process/process.h"
+#include "base/process/process_info.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/time/time.h"
+#include "base/win/registry.h"
+#include "base/win/scoped_handle.h"
+#include "base/win/windows_version.h"
+#include "chrome/browser/win/chrome_process_finder.h"
+#include "content/public/common/result_codes.h"
+#include "net/base/escape.h"
+#include "ui/gfx/win/hwnd_util.h"
+
+namespace {
+
+const char kLockfile[] = "lockfile";
+
+// A helper class that acquires the given |mutex| while the AutoLockMutex is in
+// scope.
+class AutoLockMutex {
+ public:
+  explicit AutoLockMutex(HANDLE mutex) : mutex_(mutex) {
+    DWORD result = ::WaitForSingleObject(mutex_, INFINITE);
+    DPCHECK(result == WAIT_OBJECT_0) << "Result = " << result;
+  }
+
+  ~AutoLockMutex() {
+    BOOL released = ::ReleaseMutex(mutex_);
+    DPCHECK(released);
+  }
+
+ private:
+  HANDLE mutex_;
+  DISALLOW_COPY_AND_ASSIGN(AutoLockMutex);
+};
+
+// A helper class that releases the given |mutex| while the AutoUnlockMutex is
+// in scope and immediately re-acquires it when going out of scope.
+class AutoUnlockMutex {
+ public:
+  explicit AutoUnlockMutex(HANDLE mutex) : mutex_(mutex) {
+    BOOL released = ::ReleaseMutex(mutex_);
+    DPCHECK(released);
+  }
+
+  ~AutoUnlockMutex() {
+    DWORD result = ::WaitForSingleObject(mutex_, INFINITE);
+    DPCHECK(result == WAIT_OBJECT_0) << "Result = " << result;
+  }
+
+ private:
+  HANDLE mutex_;
+  DISALLOW_COPY_AND_ASSIGN(AutoUnlockMutex);
+};
+
+// Checks the visibility of the enumerated window and signals once a visible
+// window has been found.
+BOOL CALLBACK BrowserWindowEnumeration(HWND window, LPARAM param) {
+  bool* result = reinterpret_cast<bool*>(param);
+  *result = ::IsWindowVisible(window) != 0;
+  // Stops enumeration if a visible window has been found.
+  return !*result;
+}
+
+bool ParseCommandLine(const COPYDATASTRUCT* cds,
+                      base::CommandLine::StringVector* parsed_command_line,
+                      base::FilePath* current_directory) {
+  // We should have enough room for the shortest command (min_message_size)
+  // and also be a multiple of wchar_t bytes. The shortest command
+  // possible is L"START\0\0" (empty current directory and command line).
+  static const int min_message_size = 7;
+  if (cds->cbData < min_message_size * sizeof(wchar_t) ||
+      cds->cbData % sizeof(wchar_t) != 0) {
+    LOG(WARNING) << "Invalid WM_COPYDATA, length = " << cds->cbData;
+    return false;
+  }
+
+  // We split the string into 4 parts on NULLs.
+  DCHECK(cds->lpData);
+  const std::wstring msg(static_cast<wchar_t*>(cds->lpData),
+                         cds->cbData / sizeof(wchar_t));
+  const std::wstring::size_type first_null = msg.find_first_of(L'\0');
+  if (first_null == 0 || first_null == std::wstring::npos) {
+    // no NULL byte, don't know what to do
+    LOG(WARNING) << "Invalid WM_COPYDATA, length = " << msg.length()
+                 << ", first null = " << first_null;
+    return false;
+  }
+
+  // Decode the command, which is everything until the first NULL.
+  if (msg.substr(0, first_null) == L"START") {
+    // Another instance is starting parse the command line & do what it would
+    // have done.
+    VLOG(1) << "Handling STARTUP request from another process";
+    const std::wstring::size_type second_null =
+        msg.find_first_of(L'\0', first_null + 1);
+    if (second_null == std::wstring::npos || first_null == msg.length() - 1 ||
+        second_null == msg.length()) {
+      LOG(WARNING) << "Invalid format for start command, we need a string in 4 "
+                      "parts separated by NULLs";
+      return false;
+    }
+
+    // Get current directory.
+    *current_directory =
+        base::FilePath(msg.substr(first_null + 1, second_null - first_null));
+
+    const std::wstring::size_type third_null =
+        msg.find_first_of(L'\0', second_null + 1);
+    if (third_null == std::wstring::npos || third_null == msg.length()) {
+      LOG(WARNING) << "Invalid format for start command, we need a string in 4 "
+                      "parts separated by NULLs";
+    }
+
+    // Get command line.
+    const std::wstring cmd_line =
+        msg.substr(second_null + 1, third_null - second_null);
+    *parsed_command_line = base::CommandLine::FromString(cmd_line).argv();
+    return true;
+  }
+  return false;
+}
+
+bool ProcessLaunchNotification(
+    const ProcessSingleton::NotificationCallback& notification_callback,
+    UINT message,
+    WPARAM wparam,
+    LPARAM lparam,
+    LRESULT* result) {
+  if (message != WM_COPYDATA)
+    return false;
+
+  // Handle the WM_COPYDATA message from another process.
+  const COPYDATASTRUCT* cds = reinterpret_cast<COPYDATASTRUCT*>(lparam);
+
+  base::CommandLine::StringVector parsed_command_line;
+  base::FilePath current_directory;
+  if (!ParseCommandLine(cds, &parsed_command_line, &current_directory)) {
+    *result = TRUE;
+    return true;
+  }
+
+  *result = notification_callback.Run(parsed_command_line, current_directory)
+                ? TRUE
+                : FALSE;
+  return true;
+}
+
+bool TerminateAppWithError() {
+  // TODO: This is called when the secondary process can't ping the primary
+  // process. Need to find out what to do here.
+  return false;
+}
+
+}  // namespace
+
+ProcessSingleton::ProcessSingleton(
+    const base::FilePath& user_data_dir,
+    const NotificationCallback& notification_callback)
+    : notification_callback_(notification_callback),
+      user_data_dir_(user_data_dir),
+      should_kill_remote_process_callback_(
+          base::BindRepeating(&TerminateAppWithError)) {
+  // The user_data_dir may have not been created yet.
+  base::CreateDirectoryAndGetError(user_data_dir, nullptr);
+}
+
+ProcessSingleton::~ProcessSingleton() {
+  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
+  if (lock_file_ != INVALID_HANDLE_VALUE)
+    ::CloseHandle(lock_file_);
+}
+
+// Code roughly based on Mozilla.
+ProcessSingleton::NotifyResult ProcessSingleton::NotifyOtherProcess() {
+  if (is_virtualized_)
+    return PROCESS_NOTIFIED;  // We already spawned the process in this case.
+  if (lock_file_ == INVALID_HANDLE_VALUE && !remote_window_) {
+    return LOCK_ERROR;
+  } else if (!remote_window_) {
+    return PROCESS_NONE;
+  }
+
+  switch (chrome::AttemptToNotifyRunningChrome(remote_window_)) {
+    case chrome::NOTIFY_SUCCESS:
+      return PROCESS_NOTIFIED;
+    case chrome::NOTIFY_FAILED:
+      remote_window_ = NULL;
+      return PROCESS_NONE;
+    case chrome::NOTIFY_WINDOW_HUNG:
+      // Fall through and potentially terminate the hung browser.
+      break;
+  }
+
+  DWORD process_id = 0;
+  DWORD thread_id = ::GetWindowThreadProcessId(remote_window_, &process_id);
+  if (!thread_id || !process_id) {
+    remote_window_ = NULL;
+    return PROCESS_NONE;
+  }
+  base::Process process = base::Process::Open(process_id);
+
+  // The window is hung. Scan for every window to find a visible one.
+  bool visible_window = false;
+  ::EnumThreadWindows(thread_id, &BrowserWindowEnumeration,
+                      reinterpret_cast<LPARAM>(&visible_window));
+
+  // If there is a visible browser window, ask the user before killing it.
+  if (visible_window && !should_kill_remote_process_callback_.Run()) {
+    // The user denied. Quit silently.
+    return PROCESS_NOTIFIED;
+  }
+
+  // Time to take action. Kill the browser process.
+  process.Terminate(content::RESULT_CODE_HUNG, true);
+  remote_window_ = NULL;
+  return PROCESS_NONE;
+}
+
+ProcessSingleton::NotifyResult ProcessSingleton::NotifyOtherProcessOrCreate() {
+  ProcessSingleton::NotifyResult result = PROCESS_NONE;
+  if (!Create()) {
+    result = NotifyOtherProcess();
+    if (result == PROCESS_NONE)
+      result = PROFILE_IN_USE;
+  }
+  return result;
+}
+
+void ProcessSingleton::StartListeningOnSocket() {}
+void ProcessSingleton::OnBrowserReady() {}
+
+// Look for a Chrome instance that uses the same profile directory. If there
+// isn't one, create a message window with its title set to the profile
+// directory path.
+bool ProcessSingleton::Create() {
+  static const wchar_t kMutexName[] = L"Local\\AtomProcessSingletonStartup!";
+
+  remote_window_ = chrome::FindRunningChromeWindow(user_data_dir_);
+  if (!remote_window_) {
+    // Make sure we will be the one and only process creating the window.
+    // We use a named Mutex since we are protecting against multi-process
+    // access. As documented, it's clearer to NOT request ownership on creation
+    // since it isn't guaranteed we will get it. It is better to create it
+    // without ownership and explicitly get the ownership afterward.
+    base::win::ScopedHandle only_me(::CreateMutex(NULL, FALSE, kMutexName));
+    if (!only_me.IsValid()) {
+      DPLOG(FATAL) << "CreateMutex failed";
+      return false;
+    }
+
+    AutoLockMutex auto_lock_only_me(only_me.Get());
+
+    // We now own the mutex so we are the only process that can create the
+    // window at this time, but we must still check if someone created it
+    // between the time where we looked for it above and the time the mutex
+    // was given to us.
+    remote_window_ = chrome::FindRunningChromeWindow(user_data_dir_);
+    if (!remote_window_) {
+      // We have to make sure there is no Chrome instance running on another
+      // machine that uses the same profile.
+      base::FilePath lock_file_path = user_data_dir_.AppendASCII(kLockfile);
+      lock_file_ =
+          ::CreateFile(lock_file_path.value().c_str(), GENERIC_WRITE,
+                       FILE_SHARE_READ, NULL, CREATE_ALWAYS,
+                       FILE_ATTRIBUTE_NORMAL | FILE_FLAG_DELETE_ON_CLOSE, NULL);
+      DWORD error = ::GetLastError();
+      LOG_IF(WARNING, lock_file_ != INVALID_HANDLE_VALUE &&
+                          error == ERROR_ALREADY_EXISTS)
+          << "Lock file exists but is writable.";
+      LOG_IF(ERROR, lock_file_ == INVALID_HANDLE_VALUE)
+          << "Lock file can not be created! Error code: " << error;
+
+      if (lock_file_ != INVALID_HANDLE_VALUE) {
+        // Set the window's title to the path of our user data directory so
+        // other Chrome instances can decide if they should forward to us.
+        bool result =
+            window_.CreateNamed(base::BindRepeating(&ProcessLaunchNotification,
+                                                    notification_callback_),
+                                user_data_dir_.value());
+
+        // NB: Ensure that if the primary app gets started as elevated
+        // admin inadvertently, secondary windows running not as elevated
+        // will still be able to send messages
+        ::ChangeWindowMessageFilterEx(window_.hwnd(), WM_COPYDATA, MSGFLT_ALLOW,
+                                      NULL);
+        CHECK(result && window_.hwnd());
+      }
+    }
+  }
+
+  return window_.hwnd() != NULL;
+}
+
+void ProcessSingleton::Cleanup() {}
+
+void ProcessSingleton::OverrideShouldKillRemoteProcessCallbackForTesting(
+    const ShouldKillRemoteProcessCallback& display_dialog_callback) {
+  should_kill_remote_process_callback_ = display_dialog_callback;
+}

chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.cc

@@ -2,9 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "shell/browser/ui/views/global_menu_bar_registrar_x11.h"
-
-#include <string>
+#include "chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.h"
 
 #include "base/bind.h"
 #include "base/debug/leak_annotations.h"
@@ -51,7 +49,7 @@ GlobalMenuBarRegistrarX11::GlobalMenuBarRegistrarX11() {
                                    G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START),
       nullptr, kAppMenuRegistrarName, kAppMenuRegistrarPath,
       kAppMenuRegistrarName,
-      nullptr,  // Probably want a real cancelable.
+      nullptr,  // TODO: Probalby want a real cancelable.
       static_cast<GAsyncReadyCallback>(OnProxyCreatedThunk), this);
 }
 

chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.h

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
-#define ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
+#ifndef CHROME_BROWSER_UI_VIEWS_FRAME_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
+#define CHROME_BROWSER_UI_VIEWS_FRAME_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
 
 #include <gio/gio.h>
 
@@ -33,11 +33,6 @@ class GlobalMenuBarRegistrarX11 {
   GlobalMenuBarRegistrarX11();
   ~GlobalMenuBarRegistrarX11();
 
-  // disable copy
-  GlobalMenuBarRegistrarX11(const GlobalMenuBarRegistrarX11&) = delete;
-  GlobalMenuBarRegistrarX11& operator=(const GlobalMenuBarRegistrarX11&) =
-      delete;
-
   // Sends the actual message.
   void RegisterXWindow(x11::Window window);
   void UnregisterXWindow(x11::Window window);
@@ -58,6 +53,8 @@ class GlobalMenuBarRegistrarX11 {
   // x11::Window which want to be registered, but haven't yet been because
   // we're waiting for the proxy to become available.
   std::set<x11::Window> live_windows_;
+
+  DISALLOW_COPY_AND_ASSIGN(GlobalMenuBarRegistrarX11);
 };
 
-#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
+#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_GLOBAL_MENU_BAR_REGISTRAR_X11_H_

default_app/default_app.ts

@@ -1,5 +1,4 @@
-import { shell } from 'electron/common';
-import { app, dialog, BrowserWindow, ipcMain } from 'electron/main';
+import { app, dialog, BrowserWindow, shell, ipcMain } from 'electron';
 import * as path from 'path';
 import * as url from 'url';
 
@@ -53,7 +52,8 @@ async function createWindow (backgroundColor?: string) {
     webPreferences: {
       preload: path.resolve(__dirname, 'preload.js'),
       contextIsolation: true,
-      sandbox: true
+      sandbox: true,
+      enableRemoteModule: false
     },
     useContentSize: true,
     show: false

default_app/main.ts

@@ -1,4 +1,4 @@
-import * as electron from 'electron/main';
+import * as electron from 'electron';
 
 import * as fs from 'fs';
 import * as path from 'path';
@@ -92,7 +92,7 @@ function loadApplicationPackage (packagePath: string) {
       try {
         packageJson = require(packageJsonPath);
       } catch (e) {
-        showErrorMessage(`Unable to parse ${packageJsonPath}\n\n${(e as Error).message}`);
+        showErrorMessage(`Unable to parse ${packageJsonPath}\n\n${e.message}`);
         return;
       }
 
@@ -109,9 +109,9 @@ function loadApplicationPackage (packagePath: string) {
 
     try {
       const filePath = Module._resolveFilename(packagePath, module, true);
-      app.setAppPath(appPath || path.dirname(filePath));
+      app._setDefaultAppPaths(appPath || path.dirname(filePath));
     } catch (e) {
-      showErrorMessage(`Unable to find Electron app at ${packagePath}\n\n${(e as Error).message}`);
+      showErrorMessage(`Unable to find Electron app at ${packagePath}\n\n${e.message}`);
       return;
     }
 
@@ -119,7 +119,7 @@ function loadApplicationPackage (packagePath: string) {
     Module._load(packagePath, module, true);
   } catch (e) {
     console.error('App threw an error during load');
-    console.error((e as Error).stack || e);
+    console.error(e.stack || e);
     throw e;
   }
 }

default_app/preload.ts

@@ -1,4 +1,4 @@
-import { ipcRenderer, contextBridge } from 'electron/renderer';
+import { ipcRenderer, contextBridge } from 'electron';
 
 const policy = window.trustedTypes.createPolicy('electron-default-app', {
   // we trust the SVG contents

docs/README.md

@@ -18,14 +18,20 @@ an issue:
 
 ## Guides and Tutorials
 
-### Getting started
+### Quickstart
 
-* [Introduction](tutorial/introduction.md)
-* [Quick Start](tutorial/quick-start.md)
-* [Process Model](tutorial/process-model.md)
+* [Quick Start Guide](tutorial/quick-start.md)
+  * [Prerequisites](tutorial/quick-start.md#prerequisites)
+  * [Create a basic application](tutorial/quick-start.md#create-a-basic-application)
+  * [Run your application](tutorial/quick-start.md#run-your-application)
+  * [Package and distribute the application](tutorial/quick-start.md#package-and-distribute-the-application)
 
 ### Learning the basics
 
+* [Electron's Process Model](tutorial/quick-start.md#application-architecture)
+  * [Main and Renderer Processes](tutorial/quick-start.md#main-and-renderer-processes)
+  * [Electron API](tutorial/quick-start.md#electron-api)
+  * [Node.js API](tutorial/quick-start.md#nodejs-api)
 * Adding Features to Your App
   * [Notifications](tutorial/notifications.md)
   * [Recent Documents](tutorial/recent-documents.md)
@@ -53,16 +59,15 @@ an issue:
   * [Using Native Node.js Modules](tutorial/using-native-node-modules.md)
   * [Performance Strategies](tutorial/performance.md)
   * [Security Strategies](tutorial/security.md)
-  * [Process Sandboxing](tutorial/sandbox.md)
 * [Accessibility](tutorial/accessibility.md)
   * [Manually Enabling Accessibility Features](tutorial/accessibility.md#manually-enabling-accessibility-features)
 * [Testing and Debugging](tutorial/application-debugging.md)
   * [Debugging the Main Process](tutorial/debugging-main-process.md)
   * [Debugging with Visual Studio Code](tutorial/debugging-vscode.md)
+  * [Using Selenium and WebDriver](tutorial/using-selenium-and-webdriver.md)
   * [Testing on Headless CI Systems (Travis, Jenkins)](tutorial/testing-on-headless-ci.md)
   * [DevTools Extension](tutorial/devtools-extension.md)
-  * [Automated Testing](tutorial/automated-testing.md)
-  * [REPL](tutorial/repl.md)
+  * [Automated Testing with a Custom Driver](tutorial/automated-testing-with-a-custom-driver.md)
 * [Distribution](tutorial/application-distribution.md)
   * [Supported Platforms](tutorial/support.md#supported-platforms)
   * [Code Signing](tutorial/code-signing.md)
@@ -106,6 +111,7 @@ These individual tutorials expand on topics discussed in the guide above.
 * [`File` Object](api/file-object.md)
 * [`<webview>` Tag](api/webview-tag.md)
 * [`window.open` Function](api/window-open.md)
+* [`BrowserWindowProxy` Object](api/browser-window-proxy.md)
 
 ### Modules for the Main Process:
 

docs/api/accelerator.md

@@ -2,7 +2,7 @@
 
 > Define keyboard shortcuts.
 
-Accelerators are strings that can contain multiple modifiers and a single key code,
+Accelerators are Strings that can contain multiple modifiers and a single key code,
 combined by the `+` character, and are used to define keyboard shortcuts
 throughout your application.
 
@@ -35,7 +35,7 @@ Linux and Windows to define some accelerators.
 Use `Alt` instead of `Option`. The `Option` key only exists on macOS, whereas
 the `Alt` key is available on all platforms.
 
-The `Super` (or `Meta`) key is mapped to the `Windows` key on Windows and Linux and
+The `Super` key is mapped to the `Windows` key on Windows and Linux and
 `Cmd` on macOS.
 
 ## Available modifiers
@@ -48,7 +48,6 @@ The `Super` (or `Meta`) key is mapped to the `Windows` key on Windows and Linux
 * `AltGr`
 * `Shift`
 * `Super`
-* `Meta`
 
 ## Available key codes
 

docs/api/app.md

@@ -36,10 +36,10 @@ Returns:
 * `launchInfo` Record<string, any> | [NotificationResponse](structures/notification-response.md) _macOS_
 
 Emitted once, when Electron has finished initializing. On macOS, `launchInfo`
-holds the `userInfo` of the [`NSUserNotification`](https://developer.apple.com/documentation/foundation/nsusernotification)
-or information from [`UNNotificationResponse`](https://developer.apple.com/documentation/usernotifications/unnotificationresponse)
-that was used to open the application, if it was launched from Notification Center.
-You can also call `app.isReady()` to check if this event has already fired and `app.whenReady()`
+holds the `userInfo` of the `NSUserNotification` or information from
+[`UNNotificationResponse`](structures/notification-response.md) that was used to open the
+application, if it was launched from Notification Center. You can also call
+`app.isReady()` to check if this event has already fired and `app.whenReady()`
 to get a Promise that is fulfilled when Electron is initialized.
 
 ### Event: 'window-all-closed'
@@ -103,7 +103,7 @@ to a shutdown/restart of the system or a user logout.
 Returns:
 
 * `event` Event
-* `path` string
+* `path` String
 
 Emitted when the user wants to open a file with the application. The `open-file`
 event is usually emitted when the application is already open and the OS wants
@@ -122,7 +122,7 @@ filepath.
 Returns:
 
 * `event` Event
-* `url` string
+* `url` String
 
 Emitted when the user wants to open a URL with the application. Your application's
 `Info.plist` file must define the URL scheme within the `CFBundleURLTypes` key, and
@@ -135,7 +135,7 @@ You should call `event.preventDefault()` if you want to handle this event.
 Returns:
 
 * `event` Event
-* `hasVisibleWindows` boolean
+* `hasVisibleWindows` Boolean
 
 Emitted when the application is activated. Various actions can trigger
 this event, such as launching the application for the first time, attempting
@@ -157,12 +157,10 @@ when Dock icon is clicked or application is re-launched.
 Returns:
 
 * `event` Event
-* `type` string - A string identifying the activity. Maps to
+* `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
 * `userInfo` unknown - Contains app-specific state stored by the activity on
   another device.
-* `details` Object
-  * `webpageURL` string (optional) - A string identifying the URL of the webpage accessed by the activity on another device, if available.
 
 Emitted during [Handoff][handoff] when an activity from a different device wants
 to be resumed. You should call `event.preventDefault()` if you want to handle
@@ -178,7 +176,7 @@ Supported activity types are specified in the app's `Info.plist` under the
 Returns:
 
 * `event` Event
-* `type` string - A string identifying the activity. Maps to
+* `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
 
 Emitted during [Handoff][handoff] before an activity from a different device wants
@@ -190,9 +188,9 @@ this event.
 Returns:
 
 * `event` Event
-* `type` string - A string identifying the activity. Maps to
+* `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
-* `error` string - A string with the error's localized description.
+* `error` String - A string with the error's localized description.
 
 Emitted during [Handoff][handoff] when an activity from a different device
 fails to be resumed.
@@ -202,7 +200,7 @@ fails to be resumed.
 Returns:
 
 * `event` Event
-* `type` string - A string identifying the activity. Maps to
+* `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
 * `userInfo` unknown - Contains app-specific state stored by the activity.
 
@@ -214,7 +212,7 @@ resumed on another one.
 Returns:
 
 * `event` Event
-* `type` string - A string identifying the activity. Maps to
+* `type` String - A string identifying the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
 * `userInfo` unknown - Contains app-specific state stored by the activity.
 
@@ -272,12 +270,11 @@ Returns:
 
 * `event` Event
 * `webContents` [WebContents](web-contents.md)
-* `url` string
-* `error` string - The error code
+* `url` String
+* `error` String - The error code
 * `certificate` [Certificate](structures/certificate.md)
 * `callback` Function
-  * `isTrusted` boolean - Whether to consider the certificate as trusted
-* `isMainFrame` boolean
+  * `isTrusted` Boolean - Whether to consider the certificate as trusted
 
 Emitted when failed to verify the `certificate` for `url`, to trust the
 certificate you should prevent the default behavior with
@@ -333,14 +330,14 @@ Returns:
 * `authenticationResponseDetails` Object
   * `url` URL
 * `authInfo` Object
-  * `isProxy` boolean
-  * `scheme` string
-  * `host` string
+  * `isProxy` Boolean
+  * `scheme` String
+  * `host` String
   * `port` Integer
-  * `realm` string
+  * `realm` String
 * `callback` Function
-  * `username` string (optional)
-  * `password` string (optional)
+  * `username` String (optional)
+  * `password` String (optional)
 
 Emitted when `webContents` wants to do basic auth.
 
@@ -370,7 +367,7 @@ Emitted whenever there is a GPU info update.
 Returns:
 
 * `event` Event
-* `killed` boolean
+* `killed` Boolean
 
 Emitted when the GPU process crashes or is killed.
 
@@ -385,7 +382,7 @@ Returns:
 
 * `event` Event
 * `webContents` [WebContents](web-contents.md)
-* `killed` boolean
+* `killed` Boolean
 
 Emitted when the renderer process of `webContents` crashes or is killed.
 
@@ -401,7 +398,7 @@ Returns:
 * `event` Event
 * `webContents` [WebContents](web-contents.md)
 * `details` Object
-  * `reason` string - The reason the render process is gone.  Possible values:
+  * `reason` String - The reason the render process is gone.  Possible values:
     * `clean-exit` - Process exited with an exit code of zero
     * `abnormal-exit` - Process exited with a non-zero exit code
     * `killed` - Process was sent a SIGTERM or otherwise killed externally
@@ -422,7 +419,7 @@ Returns:
 
 * `event` Event
 * `details` Object
-  * `type` string - Process type. One of the following values:
+  * `type` String - Process type. One of the following values:
     * `Utility`
     * `Zygote`
     * `Sandbox helper`
@@ -430,7 +427,7 @@ Returns:
     * `Pepper Plugin`
     * `Pepper Plugin Broker`
     * `Unknown`
-  * `reason` string - The reason the child process is gone. Possible values:
+  * `reason` String - The reason the child process is gone. Possible values:
     * `clean-exit` - Process exited with an exit code of zero
     * `abnormal-exit` - Process exited with a non-zero exit code
     * `killed` - Process was sent a SIGTERM or otherwise killed externally
@@ -438,10 +435,10 @@ Returns:
     * `oom` - Process ran out of memory
     * `launch-failed` - Process never successfully launched
     * `integrity-failure` - Windows code integrity checks failed
-  * `exitCode` number - The exit code for the process
+  * `exitCode` Number - The exit code for the process
       (e.g. status from waitpid if on posix, from GetExitCodeProcess on Windows).
-  * `serviceName` string (optional) - The non-localized name of the process.
-  * `name` string (optional) - The name of the process.
+  * `serviceName` String (optional) - The non-localized name of the process.
+  * `name` String (optional) - The name of the process.
     Examples for utility: `Audio Service`, `Content Decryption Module Service`, `Network Service`, `Video Capture`, etc.
 
 Emitted when the child process unexpectedly disappears. This is normally
@@ -452,7 +449,7 @@ because it was crashed or killed. It does not include renderer processes.
 Returns:
 
 * `event` Event
-* `accessibilitySupportEnabled` boolean - `true` when Chrome's accessibility
+* `accessibilitySupportEnabled` Boolean - `true` when Chrome's accessibility
   support is enabled, `false` otherwise.
 
 Emitted when Chrome's accessibility support changes. This event fires when
@@ -481,10 +478,8 @@ app.on('session-created', (session) => {
 Returns:
 
 * `event` Event
-* `argv` string[] - An array of the second instance's command line arguments
-* `workingDirectory` string - The second instance's working directory
-* `additionalData` unknown - A JSON object of additional data passed from the second instance
-* `ackCallback` unknown - A function that can be used to send data back to the second instance
+* `argv` String[] - An array of the second instance's command line arguments
+* `workingDirectory` String - The second instance's working directory
 
 This event will be emitted inside the primary instance of your application
 when a second instance has been executed and calls `app.requestSingleInstanceLock()`.
@@ -496,34 +491,79 @@ non-minimized.
 
 **Note:** If the second instance is started by a different user than the first, the `argv` array will not include the arguments.
 
-**Note:** `ackCallback` allows the user to send data back to the
-second instance during the `app.requestSingleInstanceLock()` flow.
-This callback can be used for cases where the second instance
-needs to obtain additional information from the first instance
-before quitting.
-
-Currently, the limit on the message size is kMaxMessageLength,
-or around 32kB. To be safe, keep the amount of data passed to 31kB at most.
-
-In order to call the callback, `event.preventDefault()` must be called, first.
-If the callback is not called in either case, `null` will be sent back.
-If `event.preventDefault()` is not called, but `ackCallback` is called
-by the user in the event, then the behaviour is undefined.
-
 This event is guaranteed to be emitted after the `ready` event of `app`
 gets emitted.
 
 **Note:** Extra command line arguments might be added by Chromium,
 such as `--original-process-start-time`.
 
-### Event: 'first-instance-ack'
+### Event: 'desktop-capturer-get-sources'
 
 Returns:
 
 * `event` Event
-* `additionalData` unknown - A JSON object of additional data passed from the first instance, in response to the first instance's `second-instance` event.
+* `webContents` [WebContents](web-contents.md)
 
-This event will be emitted within the second instance during the call to `app.requestSingleInstanceLock()`, when the first instance calls the `ackCallback` provided by the `second-instance` event handler.
+Emitted when `desktopCapturer.getSources()` is called in the renderer process of `webContents`.
+Calling `event.preventDefault()` will make it return empty sources.
+
+### Event: 'remote-require' _Deprecated_
+
+Returns:
+
+* `event` Event
+* `webContents` [WebContents](web-contents.md)
+* `moduleName` String
+
+Emitted when `remote.require()` is called in the renderer process of `webContents`.
+Calling `event.preventDefault()` will prevent the module from being returned.
+Custom value can be returned by setting `event.returnValue`.
+
+### Event: 'remote-get-global' _Deprecated_
+
+Returns:
+
+* `event` Event
+* `webContents` [WebContents](web-contents.md)
+* `globalName` String
+
+Emitted when `remote.getGlobal()` is called in the renderer process of `webContents`.
+Calling `event.preventDefault()` will prevent the global from being returned.
+Custom value can be returned by setting `event.returnValue`.
+
+### Event: 'remote-get-builtin' _Deprecated_
+
+Returns:
+
+* `event` Event
+* `webContents` [WebContents](web-contents.md)
+* `moduleName` String
+
+Emitted when `remote.getBuiltin()` is called in the renderer process of `webContents`.
+Calling `event.preventDefault()` will prevent the module from being returned.
+Custom value can be returned by setting `event.returnValue`.
+
+### Event: 'remote-get-current-window' _Deprecated_
+
+Returns:
+
+* `event` Event
+* `webContents` [WebContents](web-contents.md)
+
+Emitted when `remote.getCurrentWindow()` is called in the renderer process of `webContents`.
+Calling `event.preventDefault()` will prevent the object from being returned.
+Custom value can be returned by setting `event.returnValue`.
+
+### Event: 'remote-get-current-web-contents' _Deprecated_
+
+Returns:
+
+* `event` Event
+* `webContents` [WebContents](web-contents.md)
+
+Emitted when `remote.getCurrentWebContents()` is called in the renderer process of `webContents`.
+Calling `event.preventDefault()` will prevent the object from being returned.
+Custom value can be returned by setting `event.returnValue`.
 
 ## Methods
 
@@ -554,8 +594,8 @@ and `will-quit` events will not be emitted.
 ### `app.relaunch([options])`
 
 * `options` Object (optional)
-  * `args` string[] (optional)
-  * `execPath` string (optional)
+  * `args` String[] (optional)
+  * `execPath` String (optional)
 
 Relaunches the app when current instance exits.
 
@@ -582,7 +622,7 @@ app.exit(0)
 
 ### `app.isReady()`
 
-Returns `boolean` - `true` if Electron has finished initializing, `false` otherwise.
+Returns `Boolean` - `true` if Electron has finished initializing, `false` otherwise.
 See also `app.whenReady()`.
 
 ### `app.whenReady()`
@@ -594,7 +634,7 @@ and subscribing to the `ready` event if the app is not ready yet.
 ### `app.focus([options])`
 
 * `options` Object (optional)
-  * `steal` boolean _macOS_ - Make the receiver the active app even if another app is
+  * `steal` Boolean _macOS_ - Make the receiver the active app even if another app is
   currently active.
 
 On Linux, focuses on the first visible window. On macOS, makes the application
@@ -613,7 +653,7 @@ them.
 
 ### `app.setAppLogsPath([path])`
 
-* `path` string (optional) - A custom path for your logs. Must be absolute.
+* `path` String (optional) - A custom path for your logs. Must be absolute.
 
 Sets or creates a directory your app's logs which can then be manipulated with `app.getPath()` or `app.setPath(pathName, newPath)`.
 
@@ -621,11 +661,11 @@ Calling `app.setAppLogsPath()` without a `path` parameter will result in this di
 
 ### `app.getAppPath()`
 
-Returns `string` - The current application directory.
+Returns `String` - The current application directory.
 
 ### `app.getPath(name)`
 
-* `name` string - You can request the following paths by the name:
+* `name` String - You can request the following paths by the name:
   * `home` User's home directory.
   * `appData` Per-user application data directory, which by default points to:
     * `%APPDATA%` on Windows
@@ -647,16 +687,16 @@ Returns `string` - The current application directory.
   * `logs` Directory for your app's log folder.
   * `crashDumps` Directory where crash dumps are stored.
 
-Returns `string` - A path to a special directory or file associated with `name`. On
+Returns `String` - A path to a special directory or file associated with `name`. On
 failure, an `Error` is thrown.
 
 If `app.getPath('logs')` is called without called `app.setAppLogsPath()` being called first, a default log directory will be created equivalent to calling `app.setAppLogsPath()` without a `path` parameter.
 
 ### `app.getFileIcon(path[, options])`
 
-* `path` string
+* `path` String
 * `options` Object (optional)
-  * `size` string
+  * `size` String
     * `small` - 16x16
     * `normal` - 32x32
     * `large` - 48x48 on _Linux_, 32x32 on _Windows_, unsupported on _macOS_.
@@ -674,8 +714,8 @@ On _Linux_ and _macOS_, icons depend on the application associated with file mim
 
 ### `app.setPath(name, path)`
 
-* `name` string
-* `path` string
+* `name` String
+* `path` String
 
 Overrides the `path` to a special directory or file associated with `name`.
 If the path specifies a directory that does not exist, an `Error` is thrown.
@@ -689,13 +729,13 @@ directory. If you want to change this location, you have to override the
 
 ### `app.getVersion()`
 
-Returns `string` - The version of the loaded application. If no version is found in the
+Returns `String` - The version of the loaded application. If no version is found in the
 application's `package.json` file, the version of the current bundle or
 executable is returned.
 
 ### `app.getName()`
 
-Returns `string` - The current application's name, which is the name in the application's
+Returns `String` - The current application's name, which is the name in the application's
 `package.json` file.
 
 Usually the `name` field of `package.json` is a short lowercase name, according
@@ -705,7 +745,7 @@ preferred over `name` by Electron.
 
 ### `app.setName(name)`
 
-* `name` string
+* `name` String
 
 Overrides the current application's name.
 
@@ -713,10 +753,10 @@ Overrides the current application's name.
 
 ### `app.getLocale()`
 
-Returns `string` - The current application locale, fetched using Chromium's `l10n_util` library.
+Returns `String` - The current application locale, fetched using Chromium's `l10n_util` library.
 Possible return values are documented [here](https://source.chromium.org/chromium/chromium/src/+/master:ui/base/l10n/l10n_util.cc).
 
-To set the locale, you'll want to use a command line switch at app startup, which may be found [here](command-line-switches.md).
+To set the locale, you'll want to use a command line switch at app startup, which may be found [here](https://github.com/electron/electron/blob/master/docs/api/command-line-switches.md).
 
 **Note:** When distributing your packaged app, you have to also ship the
 `locales` folder.
@@ -725,13 +765,13 @@ To set the locale, you'll want to use a command line switch at app startup, whic
 
 ### `app.getLocaleCountryCode()`
 
-Returns `string` - User operating system's locale two-letter [ISO 3166](https://www.iso.org/iso-3166-country-codes.html) country code. The value is taken from native OS APIs.
+Returns `String` - User operating system's locale two-letter [ISO 3166](https://www.iso.org/iso-3166-country-codes.html) country code. The value is taken from native OS APIs.
 
 **Note:** When unable to detect locale country code, it returns empty string.
 
 ### `app.addRecentDocument(path)` _macOS_ _Windows_
 
-* `path` string
+* `path` String
 
 Adds `path` to the recent documents list.
 
@@ -744,15 +784,15 @@ Clears the recent documents list.
 
 ### `app.setAsDefaultProtocolClient(protocol[, path, args])`
 
-* `protocol` string - The name of your protocol, without `://`. For example,
+* `protocol` String - The name of your protocol, without `://`. For example,
   if you want your app to handle `electron://` links, call this method with
   `electron` as the parameter.
-* `path` string (optional) _Windows_ - The path to the Electron executable.
+* `path` String (optional) _Windows_ - The path to the Electron executable.
   Defaults to `process.execPath`
-* `args` string[] (optional) _Windows_ - Arguments passed to the executable.
+* `args` String[] (optional) _Windows_ - Arguments passed to the executable.
   Defaults to an empty array
 
-Returns `boolean` - Whether the call succeeded.
+Returns `Boolean` - Whether the call succeeded.
 
 Sets the current executable as the default handler for a protocol (aka URI
 scheme). It allows you to integrate your app deeper into the operating system.
@@ -775,22 +815,22 @@ The API uses the Windows Registry and `LSSetDefaultHandlerForURLScheme` internal
 
 ### `app.removeAsDefaultProtocolClient(protocol[, path, args])` _macOS_ _Windows_
 
-* `protocol` string - The name of your protocol, without `://`.
-* `path` string (optional) _Windows_ - Defaults to `process.execPath`
-* `args` string[] (optional) _Windows_ - Defaults to an empty array
+* `protocol` String - The name of your protocol, without `://`.
+* `path` String (optional) _Windows_ - Defaults to `process.execPath`
+* `args` String[] (optional) _Windows_ - Defaults to an empty array
 
-Returns `boolean` - Whether the call succeeded.
+Returns `Boolean` - Whether the call succeeded.
 
 This method checks if the current executable as the default handler for a
 protocol (aka URI scheme). If so, it will remove the app as the default handler.
 
 ### `app.isDefaultProtocolClient(protocol[, path, args])`
 
-* `protocol` string - The name of your protocol, without `://`.
-* `path` string (optional) _Windows_ - Defaults to `process.execPath`
-* `args` string[] (optional) _Windows_ - Defaults to an empty array
+* `protocol` String - The name of your protocol, without `://`.
+* `path` String (optional) _Windows_ - Defaults to `process.execPath`
+* `args` String[] (optional) _Windows_ - Defaults to an empty array
 
-Returns `boolean` - Whether the current executable is the default handler for a
+Returns `Boolean` - Whether the current executable is the default handler for a
 protocol (aka URI scheme).
 
 **Note:** On macOS, you can use this method to check if the app has been
@@ -803,11 +843,11 @@ The API uses the Windows Registry and `LSCopyDefaultHandlerForURLScheme` interna
 
 ### `app.getApplicationNameForProtocol(url)`
 
-* `url` string - a URL with the protocol name to check. Unlike the other
+* `url` String - a URL with the protocol name to check. Unlike the other
   methods in this family, this accepts an entire URL, including `://` at a
   minimum (e.g. `https://`).
 
-Returns `string` - Name of the application handling the protocol, or an empty
+Returns `String` - Name of the application handling the protocol, or an empty
   string if there is no handler. For instance, if Electron is the default
   handler of the URL, this could be `Electron` on Windows and Mac. However,
   don't rely on the precise format which is not guaranteed to remain unchanged.
@@ -818,15 +858,15 @@ This method returns the application name of the default handler for the protocol
 
 ### `app.getApplicationInfoForProtocol(url)` _macOS_ _Windows_
 
-* `url` string - a URL with the protocol name to check. Unlike the other
+* `url` String - a URL with the protocol name to check. Unlike the other
   methods in this family, this accepts an entire URL, including `://` at a
   minimum (e.g. `https://`).
 
 Returns `Promise<Object>` - Resolve with an object containing the following:
 
 * `icon` NativeImage - the display icon of the app handling the protocol.
-* `path` string  - installation path of the app handling the protocol.
-* `name` string - display name of the app handling the protocol.
+* `path` String  - installation path of the app handling the protocol.
+* `name` String - display name of the app handling the protocol.
 
 This method returns a promise that contains the application name, icon and path of the default handler for the protocol
 (aka URI scheme) of a URL.
@@ -839,7 +879,7 @@ Adds `tasks` to the [Tasks][tasks] category of the Jump List on Windows.
 
 `tasks` is an array of [`Task`](structures/task.md) objects.
 
-Returns `boolean` - Whether the call succeeded.
+Returns `Boolean` - Whether the call succeeded.
 
 **Note:** If you'd like to customize the Jump List even more use
 `app.setJumpList(categories)` instead.
@@ -954,11 +994,9 @@ app.setJumpList([
 ])
 ```
 
-### `app.requestSingleInstanceLock([additionalData])`
+### `app.requestSingleInstanceLock()`
 
-* `additionalData` Record<any, any> (optional) - A JSON object containing additional data to send to the first instance.
-
-Returns `boolean`
+Returns `Boolean`
 
 The return value of this method indicates whether or not this instance of your
 application successfully obtained the lock.  If it failed to obtain the lock,
@@ -983,33 +1021,17 @@ starts:
 const { app } = require('electron')
 let myWindow = null
 
-app.on('first-instance-ack', (event, additionalData) => {
-  // Print out the ack received from the first instance.
-  // Note this event handler must come before the requestSingleInstanceLock call.
-  // Expected output: '{"myAckKey":"myAckValue"}'
-  console.log(JSON.stringify(additionalData))
-})
-
-const additionalData = { myKey: 'myValue' }
-const gotTheLock = app.requestSingleInstanceLock(additionalData)
+const gotTheLock = app.requestSingleInstanceLock()
 
 if (!gotTheLock) {
   app.quit()
 } else {
-  app.on('second-instance', (event, commandLine, workingDirectory, additionalData) => {
-    // We must call preventDefault if we're sending back data.
-    event.preventDefault()
-    // Print out data received from the second instance.
-    // Expected output: '{"myKey":"myValue"}'
-    console.log(JSON.stringify(additionalData))
-
+  app.on('second-instance', (event, commandLine, workingDirectory) => {
     // Someone tried to run a second instance, we should focus our window.
     if (myWindow) {
       if (myWindow.isMinimized()) myWindow.restore()
       myWindow.focus()
     }
-    const ackData = { myAckKey: 'myAckValue' }
-    ackCallback(ackData)
   })
 
   // Create myWindow, load the rest of the app, etc...
@@ -1021,7 +1043,7 @@ if (!gotTheLock) {
 
 ### `app.hasSingleInstanceLock()`
 
-Returns `boolean`
+Returns `Boolean`
 
 This method returns whether or not this instance of your app is currently
 holding the single instance lock.  You can request the lock with
@@ -1035,10 +1057,10 @@ allow multiple instances of the application to once again run side by side.
 
 ### `app.setUserActivity(type, userInfo[, webpageURL])` _macOS_
 
-* `type` string - Uniquely identifies the activity. Maps to
+* `type` String - Uniquely identifies the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
 * `userInfo` any - App-specific state to store for use by another device.
-* `webpageURL` string (optional) - The webpage to load in a browser if no suitable app is
+* `webpageURL` String (optional) - The webpage to load in a browser if no suitable app is
   installed on the resuming device. The scheme must be `http` or `https`.
 
 Creates an `NSUserActivity` and sets it as the current activity. The activity
@@ -1046,7 +1068,7 @@ is eligible for [Handoff][handoff] to another device afterward.
 
 ### `app.getCurrentActivityType()` _macOS_
 
-Returns `string` - The type of the currently running activity.
+Returns `String` - The type of the currently running activity.
 
 ### `app.invalidateCurrentActivity()` _macOS_
 
@@ -1058,7 +1080,7 @@ Marks the current [Handoff][handoff] user activity as inactive without invalidat
 
 ### `app.updateCurrentActivity(type, userInfo)` _macOS_
 
-* `type` string - Uniquely identifies the activity. Maps to
+* `type` String - Uniquely identifies the activity. Maps to
   [`NSUserActivity.activityType`][activity-type].
 * `userInfo` any - App-specific state to store for use by another device.
 
@@ -1067,13 +1089,13 @@ Updates the current activity if its type matches `type`, merging the entries fro
 
 ### `app.setAppUserModelId(id)` _Windows_
 
-* `id` string
+* `id` String
 
 Changes the [Application User Model ID][app-user-model-id] to `id`.
 
 ### `app.setActivationPolicy(policy)` _macOS_
 
-* `policy` string - Can be 'regular', 'accessory', or 'prohibited'.
+* `policy` String - Can be 'regular', 'accessory', or 'prohibited'.
 
 Sets the activation policy for a given app.
 
@@ -1086,8 +1108,8 @@ Activation policy types:
 ### `app.importCertificate(options, callback)` _Linux_
 
 * `options` Object
-  * `certificate` string - Path for the pkcs12 file.
-  * `password` string - Passphrase for the certificate.
+  * `certificate` String - Path for the pkcs12 file.
+  * `password` String - Passphrase for the certificate.
 * `callback` Function
   * `result` Integer - Result of import.
 
@@ -1095,61 +1117,6 @@ Imports the certificate in pkcs12 format into the platform certificate store.
 `callback` is called with the `result` of import operation, a value of `0`
 indicates success while any other value indicates failure according to Chromium [net_error_list](https://source.chromium.org/chromium/chromium/src/+/master:net/base/net_error_list.h).
 
-### `app.configureHostResolver(options)`
-
-* `options` Object
-  * `enableBuiltInResolver` boolean (optional) - Whether the built-in host
-    resolver is used in preference to getaddrinfo. When enabled, the built-in
-    resolver will attempt to use the system's DNS settings to do DNS lookups
-    itself. Enabled by default on macOS, disabled by default on Windows and
-    Linux.
-  * `secureDnsMode` string (optional) - Can be "off", "automatic" or "secure".
-    Configures the DNS-over-HTTP mode. When "off", no DoH lookups will be
-    performed. When "automatic", DoH lookups will be performed first if DoH is
-    available, and insecure DNS lookups will be performed as a fallback. When
-    "secure", only DoH lookups will be performed. Defaults to "automatic".
-  * `secureDnsServers` string[]&#32;(optional) - A list of DNS-over-HTTP
-    server templates. See [RFC8484 § 3][] for details on the template format.
-    Most servers support the POST method; the template for such servers is
-    simply a URI. Note that for [some DNS providers][doh-providers], the
-    resolver will automatically upgrade to DoH unless DoH is explicitly
-    disabled, even if there are no DoH servers provided in this list.
-  * `enableAdditionalDnsQueryTypes` boolean (optional) - Controls whether additional DNS
-    query types, e.g. HTTPS (DNS type 65) will be allowed besides the
-    traditional A and AAAA queries when a request is being made via insecure
-    DNS. Has no effect on Secure DNS which always allows additional types.
-    Defaults to true.
-
-Configures host resolution (DNS and DNS-over-HTTPS). By default, the following
-resolvers will be used, in order:
-
-1. DNS-over-HTTPS, if the [DNS provider supports it][doh-providers], then
-2. the built-in resolver (enabled on macOS only by default), then
-3. the system's resolver (e.g. `getaddrinfo`).
-
-This can be configured to either restrict usage of non-encrypted DNS
-(`secureDnsMode: "secure"`), or disable DNS-over-HTTPS (`secureDnsMode:
-"off"`). It is also possible to enable or disable the built-in resolver.
-
-To disable insecure DNS, you can specify a `secureDnsMode` of `"secure"`. If you do
-so, you should make sure to provide a list of DNS-over-HTTPS servers to use, in
-case the user's DNS configuration does not include a provider that supports
-DoH.
-
-```js
-app.configureHostResolver({
-  secureDnsMode: 'secure',
-  secureDnsServers: [
-    'https://cloudflare-dns.com/dns-query'
-  ]
-})
-```
-
-This API must be called after the `ready` event is emitted.
-
-[doh-providers]: https://source.chromium.org/chromium/chromium/src/+/main:net/dns/public/doh_provider_entry.cc;l=31?q=%22DohProviderEntry::GetList()%22&ss=chromium%2Fchromium%2Fsrc
-[RFC8484 § 3]: https://datatracker.ietf.org/doc/html/rfc8484#section-3
-
 ### `app.disableHardwareAcceleration()`
 
 Disables hardware acceleration for current app.
@@ -1176,7 +1143,7 @@ Returns [`GPUFeatureStatus`](structures/gpu-feature-status.md) - The Graphics Fe
 
 ### `app.getGPUInfo(infoType)`
 
-* `infoType` string - Can be `basic` or `complete`.
+* `infoType` String - Can be `basic` or `complete`.
 
 Returns `Promise<unknown>`
 
@@ -1219,15 +1186,15 @@ Using `basic` should be preferred if only basic information like `vendorId` or `
 
 * `count` Integer (optional) - If a value is provided, set the badge to the provided value otherwise, on macOS, display a plain white dot (e.g. unknown number of notifications). On Linux, if a value is not provided the badge will not display.
 
-Returns `boolean` - Whether the call succeeded.
+Returns `Boolean` - Whether the call succeeded.
 
 Sets the counter badge for current app. Setting the count to `0` will hide the
 badge.
 
 On macOS, it shows on the dock icon. On Linux, it only works for Unity launcher.
 
-**Note:** Unity launcher requires a `.desktop` file to work. For more information,
-please read the [Unity integration documentation][unity-requirement].
+**Note:** Unity launcher requires the existence of a `.desktop` file to work,
+for more information please read [Desktop Environment Integration][unity-requirement].
 
 ### `app.getBadgeCount()` _Linux_ _macOS_
 
@@ -1235,14 +1202,14 @@ Returns `Integer` - The current value displayed in the counter badge.
 
 ### `app.isUnityRunning()` _Linux_
 
-Returns `boolean` - Whether the current desktop environment is Unity launcher.
+Returns `Boolean` - Whether the current desktop environment is Unity launcher.
 
 ### `app.getLoginItemSettings([options])` _macOS_ _Windows_
 
 * `options` Object (optional)
-  * `path` string (optional) _Windows_ - The executable path to compare against.
+  * `path` String (optional) _Windows_ - The executable path to compare against.
     Defaults to `process.execPath`.
-  * `args` string[] (optional) _Windows_ - The command-line arguments to compare
+  * `args` String[] (optional) _Windows_ - The command-line arguments to compare
     against. Defaults to an empty array.
 
 If you provided `path` and `args` options to `app.setLoginItemSettings`, then you
@@ -1250,43 +1217,43 @@ need to pass the same arguments here for `openAtLogin` to be set correctly.
 
 Returns `Object`:
 
-* `openAtLogin` boolean - `true` if the app is set to open at login.
-* `openAsHidden` boolean _macOS_ - `true` if the app is set to open as hidden at login.
+* `openAtLogin` Boolean - `true` if the app is set to open at login.
+* `openAsHidden` Boolean _macOS_ - `true` if the app is set to open as hidden at login.
   This setting is not available on [MAS builds][mas-builds].
-* `wasOpenedAtLogin` boolean _macOS_ - `true` if the app was opened at login
+* `wasOpenedAtLogin` Boolean _macOS_ - `true` if the app was opened at login
   automatically. This setting is not available on [MAS builds][mas-builds].
-* `wasOpenedAsHidden` boolean _macOS_ - `true` if the app was opened as a hidden login
+* `wasOpenedAsHidden` Boolean _macOS_ - `true` if the app was opened as a hidden login
   item. This indicates that the app should not open any windows at startup.
   This setting is not available on [MAS builds][mas-builds].
-* `restoreState` boolean _macOS_ - `true` if the app was opened as a login item that
+* `restoreState` Boolean _macOS_ - `true` if the app was opened as a login item that
   should restore the state from the previous session. This indicates that the
   app should restore the windows that were open the last time the app was
   closed. This setting is not available on [MAS builds][mas-builds].
-* `executableWillLaunchAtLogin` boolean _Windows_ - `true` if app is set to open at login and its run key is not deactivated. This differs from `openAtLogin` as it ignores the `args` option, this property will be true if the given executable would be launched at login with **any** arguments.
+* `executableWillLaunchAtLogin` Boolean _Windows_ - `true` if app is set to open at login and its run key is not deactivated. This differs from `openAtLogin` as it ignores the `args` option, this property will be true if the given executable would be launched at login with **any** arguments.
 * `launchItems` Object[] _Windows_
-  * `name` string _Windows_ - name value of a registry entry.
-  * `path` string _Windows_ - The executable to an app that corresponds to a registry entry.
-  * `args` string[] _Windows_ - the command-line arguments to pass to the executable.
-  * `scope` string _Windows_ - one of `user` or `machine`. Indicates whether the registry entry is under `HKEY_CURRENT USER` or `HKEY_LOCAL_MACHINE`.
-  * `enabled` boolean _Windows_ - `true` if the app registry key is startup approved and therefore shows as `enabled` in Task Manager and Windows settings.
+  * `name` String _Windows_ - name value of a registry entry.
+  * `path` String _Windows_ - The executable to an app that corresponds to a registry entry.
+  * `args` String[] _Windows_ - the command-line arguments to pass to the executable.
+  * `scope` String _Windows_ - one of `user` or `machine`. Indicates whether the registry entry is under `HKEY_CURRENT USER` or `HKEY_LOCAL_MACHINE`.
+  * `enabled` Boolean _Windows_ - `true` if the app registry key is startup approved and therefore shows as `enabled` in Task Manager and Windows settings.
 
 ### `app.setLoginItemSettings(settings)` _macOS_ _Windows_
 
 * `settings` Object
-  * `openAtLogin` boolean (optional) - `true` to open the app at login, `false` to remove
+  * `openAtLogin` Boolean (optional) - `true` to open the app at login, `false` to remove
     the app as a login item. Defaults to `false`.
-  * `openAsHidden` boolean (optional) _macOS_ - `true` to open the app as hidden. Defaults to
+  * `openAsHidden` Boolean (optional) _macOS_ - `true` to open the app as hidden. Defaults to
     `false`. The user can edit this setting from the System Preferences so
     `app.getLoginItemSettings().wasOpenedAsHidden` should be checked when the app
     is opened to know the current value. This setting is not available on [MAS builds][mas-builds].
-  * `path` string (optional) _Windows_ - The executable to launch at login.
+  * `path` String (optional) _Windows_ - The executable to launch at login.
     Defaults to `process.execPath`.
-  * `args` string[] (optional) _Windows_ - The command-line arguments to pass to
+  * `args` String[] (optional) _Windows_ - The command-line arguments to pass to
     the executable. Defaults to an empty array. Take care to wrap paths in
     quotes.
-  * `enabled` boolean (optional) _Windows_ - `true` will change the startup approved registry key and `enable / disable` the App in Task Manager and Windows Settings.
+  * `enabled` Boolean (optional) _Windows_ - `true` will change the startup approved registry key and `enable / disable` the App in Task Manager and Windows Settings.
     Defaults to `true`.
-  * `name` string (optional) _Windows_ - value name to write into registry. Defaults to the app's AppUserModelId().
+  * `name` String (optional) _Windows_ - value name to write into registry. Defaults to the app's AppUserModelId().
 Set the app's login item settings.
 
 To work with Electron's `autoUpdater` on Windows, which uses [Squirrel][Squirrel-Windows],
@@ -1310,7 +1277,7 @@ app.setLoginItemSettings({
 
 ### `app.isAccessibilitySupportEnabled()` _macOS_ _Windows_
 
-Returns `boolean` - `true` if Chrome's accessibility support is enabled,
+Returns `Boolean` - `true` if Chrome's accessibility support is enabled,
 `false` otherwise. This API will return `true` if the use of assistive
 technologies, such as screen readers, has been detected. See
 https://www.chromium.org/developers/design-documents/accessibility for more
@@ -1318,7 +1285,7 @@ details.
 
 ### `app.setAccessibilitySupportEnabled(enabled)` _macOS_ _Windows_
 
-* `enabled` boolean - Enable or disable [accessibility tree](https://developers.google.com/web/fundamentals/accessibility/semantics-builtin/the-accessibility-tree) rendering
+* `enabled` Boolean - Enable or disable [accessibility tree](https://developers.google.com/web/fundamentals/accessibility/semantics-builtin/the-accessibility-tree) rendering
 
 Manually enables Chrome's accessibility support, allowing to expose accessibility switch to users in application settings. See [Chromium's accessibility docs](https://www.chromium.org/developers/design-documents/accessibility) for more
 details. Disabled by default.
@@ -1334,14 +1301,14 @@ Show the app's about panel options. These options can be overridden with `app.se
 ### `app.setAboutPanelOptions(options)`
 
 * `options` Object
-  * `applicationName` string (optional) - The app's name.
-  * `applicationVersion` string (optional) - The app's version.
-  * `copyright` string (optional) - Copyright information.
-  * `version` string (optional) _macOS_ - The app's build version number.
-  * `credits` string (optional) _macOS_ _Windows_ - Credit information.
-  * `authors` string[] (optional) _Linux_ - List of app authors.
-  * `website` string (optional) _Linux_ - The app's website.
-  * `iconPath` string (optional) _Linux_ _Windows_ - Path to the app's icon in a JPEG or PNG file format. On Linux, will be shown as 64x64 pixels while retaining aspect ratio.
+  * `applicationName` String (optional) - The app's name.
+  * `applicationVersion` String (optional) - The app's version.
+  * `copyright` String (optional) - Copyright information.
+  * `version` String (optional) _macOS_ - The app's build version number.
+  * `credits` String (optional) _macOS_ _Windows_ - Credit information.
+  * `authors` String[] (optional) _Linux_ - List of app authors.
+  * `website` String (optional) _Linux_ - The app's website.
+  * `iconPath` String (optional) _Linux_ _Windows_ - Path to the app's icon in a JPEG or PNG file format. On Linux, will be shown as 64x64 pixels while retaining aspect ratio.
 
 Set the about panel options. This will override the values defined in the app's `.plist` file on macOS. See the [Apple docs][about-panel-options] for more details. On Linux, values must be set in order to be shown; there are no defaults.
 
@@ -1349,7 +1316,7 @@ If you do not set `credits` but still wish to surface them in your app, AppKit w
 
 ### `app.isEmojiPanelSupported()`
 
-Returns `boolean` - whether or not the current OS version allows for native emoji pickers.
+Returns `Boolean` - whether or not the current OS version allows for native emoji pickers.
 
 ### `app.showEmojiPanel()` _macOS_ _Windows_
 
@@ -1357,7 +1324,7 @@ Show the platform's native emoji picker.
 
 ### `app.startAccessingSecurityScopedResource(bookmarkData)` _mas_
 
-* `bookmarkData` string - The base64 encoded security scoped bookmark data returned by the `dialog.showOpenDialog` or `dialog.showSaveDialog` methods.
+* `bookmarkData` String - The base64 encoded security scoped bookmark data returned by the `dialog.showOpenDialog` or `dialog.showSaveDialog` methods.
 
 Returns `Function` - This function **must** be called once you have finished accessing the security scoped file. If you do not remember to stop accessing the bookmark, [kernel resources will be leaked](https://developer.apple.com/reference/foundation/nsurl/1417051-startaccessingsecurityscopedreso?language=objc) and your app will lose its ability to reach outside the sandbox completely, until your app is restarted.
 
@@ -1380,16 +1347,16 @@ This method can only be called before app is ready.
 
 ### `app.isInApplicationsFolder()` _macOS_
 
-Returns `boolean` - Whether the application is currently running from the
+Returns `Boolean` - Whether the application is currently running from the
 systems Application folder. Use in combination with `app.moveToApplicationsFolder()`
 
 ### `app.moveToApplicationsFolder([options])` _macOS_
 
 * `options` Object (optional)
-  * `conflictHandler` Function\<boolean> (optional) - A handler for potential conflict in move failure.
-    * `conflictType` string - The type of move conflict encountered by the handler; can be `exists` or `existsAndRunning`, where `exists` means that an app of the same name is present in the Applications directory and `existsAndRunning` means both that it exists and that it's presently running.
+  * `conflictHandler` Function\<Boolean> (optional) - A handler for potential conflict in move failure.
+    * `conflictType` String - The type of move conflict encountered by the handler; can be `exists` or `existsAndRunning`, where `exists` means that an app of the same name is present in the Applications directory and `existsAndRunning` means both that it exists and that it's presently running.
 
-Returns `boolean` - Whether the move was successful. Please note that if
+Returns `Boolean` - Whether the move was successful. Please note that if
 the move is successful, your application will quit and relaunch.
 
 No confirmation dialog will be presented by default. If you wish to allow
@@ -1425,13 +1392,13 @@ Would mean that if an app already exists in the user directory, if the user choo
 
 ### `app.isSecureKeyboardEntryEnabled()` _macOS_
 
-Returns `boolean` - whether `Secure Keyboard Entry` is enabled.
+Returns `Boolean` - whether `Secure Keyboard Entry` is enabled.
 
 By default this API will return `false`.
 
 ### `app.setSecureKeyboardEntryEnabled(enabled)` _macOS_
 
-* `enabled` boolean - Enable or disable `Secure Keyboard Entry`
+* `enabled` Boolean - Enable or disable `Secure Keyboard Entry`
 
 Set the `Secure Keyboard Entry` is enabled in your application.
 
@@ -1446,7 +1413,7 @@ details.
 
 ### `app.accessibilitySupportEnabled` _macOS_ _Windows_
 
-A `boolean` property that's `true` if Chrome's accessibility support is enabled, `false` otherwise. This property will be `true` if the use of assistive technologies, such as screen readers, has been detected. Setting this property to `true` manually enables Chrome's accessibility support, allowing developers to expose accessibility switch to users in application settings.
+A `Boolean` property that's `true` if Chrome's accessibility support is enabled, `false` otherwise. This property will be `true` if the use of assistive technologies, such as screen readers, has been detected. Setting this property to `true` manually enables Chrome's accessibility support, allowing developers to expose accessibility switch to users in application settings.
 
 See [Chromium's accessibility docs](https://www.chromium.org/developers/design-documents/accessibility) for more details. Disabled by default.
 
@@ -1465,8 +1432,8 @@ An `Integer` property that returns the badge count for current app. Setting the
 
 On macOS, setting this with any nonzero integer shows on the dock icon. On Linux, this property only works for Unity launcher.
 
-**Note:** Unity launcher requires a `.desktop` file to work. For more information,
-please read the [Unity integration documentation][unity-requirement].
+**Note:** Unity launcher requires the existence of a `.desktop` file to work,
+for more information please read [Desktop Environment Integration][unity-requirement].
 
 **Note:** On macOS, you need to ensure that your application has the permission
 to display notifications for this property to take effect.
@@ -1483,7 +1450,7 @@ dock on macOS.
 
 ### `app.isPackaged` _Readonly_
 
-A `boolean` property that returns  `true` if the app is packaged, `false` otherwise. For many apps, this property can be used to distinguish development and production environments.
+A `Boolean` property that returns  `true` if the app is packaged, `false` otherwise. For many apps, this property can be used to distinguish development and production environments.
 
 [dock-menu]:https://developer.apple.com/macos/human-interface-guidelines/menus/dock-menus/
 [tasks]:https://msdn.microsoft.com/en-us/library/windows/desktop/dd378460(v=vs.85).aspx#tasks
@@ -1494,7 +1461,7 @@ A `boolean` property that returns  `true` if the app is packaged, `false` otherw
 [LSCopyDefaultHandlerForURLScheme]: https://developer.apple.com/library/mac/documentation/Carbon/Reference/LaunchServicesReference/#//apple_ref/c/func/LSCopyDefaultHandlerForURLScheme
 [handoff]: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/Handoff/HandoffFundamentals/HandoffFundamentals.html
 [activity-type]: https://developer.apple.com/library/ios/documentation/Foundation/Reference/NSUserActivity_Class/index.html#//apple_ref/occ/instp/NSUserActivity/activityType
-[unity-requirement]: https://help.ubuntu.com/community/UnityLaunchersAndDesktopFiles#Adding_shortcuts_to_a_launcher
+[unity-requirement]: ../tutorial/desktop-environment-integration.md#unity-launcher
 [mas-builds]: ../tutorial/mac-app-store-submission-guide.md
 [Squirrel-Windows]: https://github.com/Squirrel/Squirrel.Windows
 [JumpListBeginListMSDN]: https://msdn.microsoft.com/en-us/library/windows/desktop/dd378398(v=vs.85).aspx
@@ -1502,7 +1469,7 @@ A `boolean` property that returns  `true` if the app is packaged, `false` otherw
 
 ### `app.name`
 
-A `string` property that indicates the current application's name, which is the name in the application's `package.json` file.
+A `String` property that indicates the current application's name, which is the name in the application's `package.json` file.
 
 Usually the `name` field of `package.json` is a short lowercase name, according
 to the npm modules spec. You should usually also specify a `productName`
@@ -1511,33 +1478,31 @@ preferred over `name` by Electron.
 
 ### `app.userAgentFallback`
 
-A `string` which is the user agent string Electron will use as a global fallback.
+A `String` which is the user agent string Electron will use as a global fallback.
 
 This is the user agent that will be used when no user agent is set at the
 `webContents` or `session` level.  It is useful for ensuring that your entire
 app has the same user agent.  Set to a custom value as early as possible
 in your app's initialization to ensure that your overridden value is used.
 
-### `app.runningUnderRosettaTranslation` _macOS_ _Readonly_ _Deprecated_
+### `app.allowRendererProcessReuse`
 
-A `boolean` which when `true` indicates that the app is currently running
+A `Boolean` which when `true` disables the overrides that Electron has in place
+to ensure renderer processes are restarted on every navigation.  The current
+default value for this property is `true`.
+
+The intention is for these overrides to become disabled by default and then at
+some point in the future this property will be removed.  This property impacts
+which native modules you can use in the renderer process.  For more information
+on the direction Electron is going with renderer process restarts and usage of
+native modules in the renderer process please check out this
+[Tracking Issue](https://github.com/electron/electron/issues/18397).
+
+### `app.runningUnderRosettaTranslation` _macOS_ _Readonly_
+
+A `Boolean` which when `true` indicates that the app is currently running
 under the [Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta_(software)).
 
 You can use this property to prompt users to download the arm64 version of
 your application when they are running the x64 version under Rosetta
 incorrectly.
-
-**Deprecated:** This property is superceded by the `runningUnderARM64Translation`
-property which detects when the app is being translated to ARM64 in both macOS
-and Windows.
-
-### `app.runningUnderARM64Translation` _Readonly_ _macOS_ _Windows_
-
-A `boolean` which when `true` indicates that the app is currently running under
-an ARM64 translator (like the macOS
-[Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta_(software))
-or Windows [WOW](https://en.wikipedia.org/wiki/Windows_on_Windows)).
-
-You can use this property to prompt users to download the arm64 version of
-your application when they are running the x64 version under Rosetta
-incorrectly.

docs/api/auto-updater.md

@@ -43,7 +43,7 @@ The installer generated with Squirrel will create a shortcut icon with an
 same ID for your app with `app.setAppUserModelId` API, otherwise Windows will
 not be able to pin your app properly in task bar.
 
-Like Squirrel.Mac, Windows can host updates on S3 or any other static file host.
+Unlike Squirrel.Mac, Windows can host updates on S3 or any other static file host.
 You can read the documents of [Squirrel.Windows][squirrel-windows] to get more details
 about how Squirrel.Windows works.
 
@@ -77,10 +77,10 @@ Emitted when there is no available update.
 Returns:
 
 * `event` Event
-* `releaseNotes` string
-* `releaseName` string
+* `releaseNotes` String
+* `releaseName` String
 * `releaseDate` Date
-* `updateURL` string
+* `updateURL` String
 
 Emitted when an update has been downloaded.
 
@@ -102,25 +102,22 @@ The `autoUpdater` object has the following methods:
 ### `autoUpdater.setFeedURL(options)`
 
 * `options` Object
-  * `url` string
-  * `headers` Record<string, string> (optional) _macOS_ - HTTP request headers.
-  * `serverType` string (optional) _macOS_ - Can be `json` or `default`, see the [Squirrel.Mac][squirrel-mac]
+  * `url` String
+  * `headers` Record<String, String> (optional) _macOS_ - HTTP request headers.
+  * `serverType` String (optional) _macOS_ - Can be `json` or `default`, see the [Squirrel.Mac][squirrel-mac]
     README for more information.
 
 Sets the `url` and initialize the auto updater.
 
 ### `autoUpdater.getFeedURL()`
 
-Returns `string` - The current update feed URL.
+Returns `String` - The current update feed URL.
 
 ### `autoUpdater.checkForUpdates()`
 
 Asks the server whether there is an update. You must call `setFeedURL` before
 using this API.
 
-**Note:** If an update is available it will be downloaded automatically.
-Calling `autoUpdater.checkForUpdates()` twice will download the update two times.
-
 ### `autoUpdater.quitAndInstall()`
 
 Restarts the app and installs the update after it has been downloaded. It

docs/api/browser-view.md

@@ -15,16 +15,14 @@ Process: [Main](../glossary.md#main-process)
 
 ```javascript
 // In the main process.
-const { app, BrowserView, BrowserWindow } = require('electron')
+const { BrowserView, BrowserWindow } = require('electron')
 
-app.whenReady().then(() => {
-  const win = new BrowserWindow({ width: 800, height: 600 })
+const win = new BrowserWindow({ width: 800, height: 600 })
 
-  const view = new BrowserView()
-  win.setBrowserView(view)
-  view.setBounds({ x: 0, y: 0, width: 300, height: 300 })
-  view.webContents.loadURL('https://electronjs.org')
-})
+const view = new BrowserView()
+win.setBrowserView(view)
+view.setBounds({ x: 0, y: 0, width: 300, height: 300 })
+view.webContents.loadURL('https://electronjs.org')
 ```
 
 ### `new BrowserView([options])` _Experimental_
@@ -47,13 +45,13 @@ Objects created with `new BrowserView` have the following instance methods:
 #### `view.setAutoResize(options)` _Experimental_
 
 * `options` Object
-  * `width` boolean (optional) - If `true`, the view's width will grow and shrink together
+  * `width` Boolean (optional) - If `true`, the view's width will grow and shrink together
     with the window. `false` by default.
-  * `height` boolean (optional) - If `true`, the view's height will grow and shrink
+  * `height` Boolean (optional) - If `true`, the view's height will grow and shrink
     together with the window. `false` by default.
-  * `horizontal` boolean (optional) - If `true`, the view's x position and width will grow
+  * `horizontal` Boolean (optional) - If `true`, the view's x position and width will grow
     and shrink proportionally with the window. `false` by default.
-  * `vertical` boolean (optional) - If `true`, the view's y position and height will grow
+  * `vertical` Boolean (optional) - If `true`, the view's y position and height will grow
     and shrink proportionally with the window. `false` by default.
 
 #### `view.setBounds(bounds)` _Experimental_
@@ -70,31 +68,5 @@ The `bounds` of this BrowserView instance as `Object`.
 
 #### `view.setBackgroundColor(color)` _Experimental_
 
-* `color` string - Color in Hex, RGB, ARGB, HSL, HSLA or named CSS color format. The alpha channel is
-  optional for the hex type.
-
-Examples of valid `color` values:
-
-* Hex
-  * #fff (RGB)
-  * #ffff (ARGB)
-  * #ffffff (RRGGBB)
-  * #ffffffff (AARRGGBB)
-* RGB
-  * rgb\(([\d]+),\s*([\d]+),\s*([\d]+)\)
-    * e.g. rgb(255, 255, 255)
-* RGBA
-  * rgba\(([\d]+),\s*([\d]+),\s*([\d]+),\s*([\d.]+)\)
-    * e.g. rgba(255, 255, 255, 1.0)
-* HSL
-  * hsl\((-?[\d.]+),\s*([\d.]+)%,\s*([\d.]+)%\)
-    * e.g. hsl(200, 20%, 50%)
-* HSLA
-  * hsla\((-?[\d.]+),\s*([\d.]+)%,\s*([\d.]+)%,\s*([\d.]+)\)
-    * e.g. hsla(200, 20%, 50%, 0.5)
-* Color name
-  * Options are listed in [SkParseColor.cpp](https://source.chromium.org/chromium/chromium/src/+/main:third_party/skia/src/utils/SkParseColor.cpp;l=11-152;drc=eea4bf52cb0d55e2a39c828b017c80a5ee054148)
-  * Similar to CSS Color Module Level 3 keywords, but case-sensitive.
-    * e.g. `blueviolet` or `red`
-
-**Note:** Hex format with alpha takes `AARRGGBB` or `ARGB`, _not_ `RRGGBBA` or `RGA`.
+* `color` String - Color in `#aarrggbb` or `#argb` form. The alpha channel is
+  optional.

docs/api/browser-window-proxy.md

@@ -0,0 +1,53 @@
+## Class: BrowserWindowProxy
+
+> Manipulate the child browser window
+
+Process: [Renderer](../glossary.md#renderer-process)
+
+The `BrowserWindowProxy` object is returned from `window.open` and provides
+limited functionality with the child window.
+
+### Instance Methods
+
+The `BrowserWindowProxy` object has the following instance methods:
+
+#### `win.blur()`
+
+Removes focus from the child window.
+
+#### `win.close()`
+
+Forcefully closes the child window without calling its unload event.
+
+#### `win.eval(code)`
+
+* `code` String
+
+Evaluates the code in the child window.
+
+#### `win.focus()`
+
+Focuses the child window (brings the window to front).
+
+#### `win.print()`
+
+Invokes the print dialog on the child window.
+
+#### `win.postMessage(message, targetOrigin)`
+
+* `message` any
+* `targetOrigin` String
+
+Sends a message to the child window with the specified origin or `*` for no
+origin preference.
+
+In addition to these methods, the child window implements `window.opener` object
+with no properties and a single method.
+
+### Instance Properties
+
+The `BrowserWindowProxy` object has the following instance properties:
+
+#### `win.closed`
+
+A `Boolean` that is set to true after the child window gets closed.

docs/api/client-request.md

@@ -2,28 +2,27 @@
 
 > Make HTTP/HTTPS requests.
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 `ClientRequest` implements the [Writable Stream](https://nodejs.org/api/stream.html#stream_writable_streams)
 interface and is therefore an [EventEmitter][event-emitter].
 
 ### `new ClientRequest(options)`
 
-* `options` (Object | string) - If `options` is a string, it is interpreted as
+* `options` (Object | String) - If `options` is a String, it is interpreted as
 the request URL. If it is an object, it is expected to fully specify an HTTP request via the
 following properties:
-  * `method` string (optional) - The HTTP request method. Defaults to the GET
+  * `method` String (optional) - The HTTP request method. Defaults to the GET
     method.
-  * `url` string (optional) - The request URL. Must be provided in the absolute
+  * `url` String (optional) - The request URL. Must be provided in the absolute
     form with the protocol scheme specified as http or https.
   * `session` Session (optional) - The [`Session`](session.md) instance with
     which the request is associated.
-  * `partition` string (optional) - The name of the [`partition`](session.md)
+  * `partition` String (optional) - The name of the [`partition`](session.md)
     with which the request is associated. Defaults to the empty string. The
     `session` option supersedes `partition`. Thus if a `session` is explicitly
     specified, `partition` is ignored.
-  * `credentials` string (optional) - Can be `include` or `omit`. Whether to
+  * `credentials` String (optional) - Can be `include` or `omit`. Whether to
     send [credentials](https://fetch.spec.whatwg.org/#credentials) with this
     request. If set to `include`, credentials from the session associated with
     the request will be used. If set to `omit`, credentials will not be sent
@@ -33,22 +32,22 @@ following properties:
     option of the same name. If this option is not specified, authentication
     data from the session will be sent, and cookies will not be sent (unless
     `useSessionCookies` is set).
-  * `useSessionCookies` boolean (optional) - Whether to send cookies with this
+  * `useSessionCookies` Boolean (optional) - Whether to send cookies with this
     request from the provided session. If `credentials` is specified, this
     option has no effect. Default is `false`.
-  * `protocol` string (optional) - Can be `http:` or `https:`. The protocol
+  * `protocol` String (optional) - Can be `http:` or `https:`. The protocol
     scheme in the form 'scheme:'. Defaults to 'http:'.
-  * `host` string (optional) - The server host provided as a concatenation of
+  * `host` String (optional) - The server host provided as a concatenation of
     the hostname and the port number 'hostname:port'.
-  * `hostname` string (optional) - The server host name.
+  * `hostname` String (optional) - The server host name.
   * `port` Integer (optional) - The server's listening port number.
-  * `path` string (optional) - The path part of the request URL.
-  * `redirect` string (optional) - Can be `follow`, `error` or `manual`. The
+  * `path` String (optional) - The path part of the request URL.
+  * `redirect` String (optional) - Can be `follow`, `error` or `manual`. The
     redirect mode for this request. When mode is `error`, any redirection will
     be aborted. When mode is `manual` the redirection will be cancelled unless
     [`request.followRedirect`](#requestfollowredirect) is invoked synchronously
     during the [`redirect`](#event-redirect) event.  Defaults to `follow`.
-  * `origin` string (optional) - The origin URL of the request.
+  * `origin` String (optional) - The origin URL of the request.
 
 `options` properties such as `protocol`, `host`, `hostname`, `port` and `path`
 strictly follow the Node.js model as described in the
@@ -72,28 +71,28 @@ const request = net.request({
 
 Returns:
 
-* `response` [IncomingMessage](incoming-message.md) - An object representing the HTTP response message.
+* `response` IncomingMessage - An object representing the HTTP response message.
 
 #### Event: 'login'
 
 Returns:
 
 * `authInfo` Object
-  * `isProxy` boolean
-  * `scheme` string
-  * `host` string
+  * `isProxy` Boolean
+  * `scheme` String
+  * `host` String
   * `port` Integer
-  * `realm` string
+  * `realm` String
 * `callback` Function
-  * `username` string (optional)
-  * `password` string (optional)
+  * `username` String (optional)
+  * `password` String (optional)
 
 Emitted when an authenticating proxy is asking for user credentials.
 
 The `callback` function is expected to be called back with user credentials:
 
-* `username` string
-* `password` string
+* `username` String
+* `password` String
 
 ```JavaScript
 request.on('login', (authInfo, callback) => {
@@ -147,9 +146,9 @@ event indicates that no more events will be emitted on either the `request` or
 Returns:
 
 * `statusCode` Integer
-* `method` string
-* `redirectUrl` string
-* `responseHeaders` Record<string, string[]>
+* `method` String
+* `redirectUrl` String
+* `responseHeaders` Record<String, String[]>
 
 Emitted when the server returns a redirect response (e.g. 301 Moved
 Permanently). Calling [`request.followRedirect`](#requestfollowredirect) will
@@ -161,7 +160,7 @@ continue with the redirection.  If this event is handled,
 
 #### `request.chunkedEncoding`
 
-A `boolean` specifying whether the request will use HTTP chunked transfer encoding
+A `Boolean` specifying whether the request will use HTTP chunked transfer encoding
 or not. Defaults to false. The property is readable and writable, however it can
 be set only before the first write operation as the HTTP headers are not yet put
 on the wire. Trying to set the `chunkedEncoding` property after the first write
@@ -175,12 +174,12 @@ internally buffered inside Electron process memory.
 
 #### `request.setHeader(name, value)`
 
-* `name` string - An extra HTTP header name.
-* `value` string - An extra HTTP header value.
+* `name` String - An extra HTTP header name.
+* `value` String - An extra HTTP header value.
 
 Adds an extra HTTP header. The header name will be issued as-is without
 lowercasing. It can be called only before first write. Calling this method after
-the first write will throw an error. If the passed value is not a `string`, its
+the first write will throw an error. If the passed value is not a `String`, its
 `toString()` method will be called to obtain the final value.
 
 Certain headers are restricted from being set by apps. These headers are
@@ -199,22 +198,22 @@ Additionally, setting the `Connection` header to the value `upgrade` is also dis
 
 #### `request.getHeader(name)`
 
-* `name` string - Specify an extra header name.
+* `name` String - Specify an extra header name.
 
-Returns `string` - The value of a previously set extra header name.
+Returns `String` - The value of a previously set extra header name.
 
 #### `request.removeHeader(name)`
 
-* `name` string - Specify an extra header name.
+* `name` String - Specify an extra header name.
 
 Removes a previously set extra header name. This method can be called only
 before first write. Trying to call it after the first write will throw an error.
 
 #### `request.write(chunk[, encoding][, callback])`
 
-* `chunk` (string | Buffer) - A chunk of the request body's data. If it is a
+* `chunk` (String | Buffer) - A chunk of the request body's data. If it is a
 string, it is converted into a Buffer using the specified encoding.
-* `encoding` string (optional) - Used to convert string chunks into Buffer
+* `encoding` String (optional) - Used to convert string chunks into Buffer
 objects. Defaults to 'utf-8'.
 * `callback` Function (optional) - Called after the write operation ends.
 
@@ -230,8 +229,8 @@ it is not allowed to add or remove a custom header.
 
 #### `request.end([chunk][, encoding][, callback])`
 
-* `chunk` (string | Buffer) (optional)
-* `encoding` string (optional)
+* `chunk` (String | Buffer) (optional)
+* `encoding` String (optional)
 * `callback` Function (optional)
 
 Sends the last chunk of the request data. Subsequent write or end operations
@@ -253,9 +252,9 @@ event.
 
 Returns `Object`:
 
-* `active` boolean - Whether the request is currently active. If this is false
+* `active` Boolean - Whether the request is currently active. If this is false
 no other properties will be set
-* `started` boolean - Whether the upload has started. If this is false both
+* `started` Boolean - Whether the upload has started. If this is false both
 `current` and `total` will be set to 0.
 * `current` Integer - The number of bytes that have been uploaded so far
 * `total` Integer - The number of bytes that will be uploaded this request

docs/api/clipboard.md

@@ -10,7 +10,7 @@ you need to pass `selection` to each method:
 ```javascript
 const { clipboard } = require('electron')
 
-clipboard.writeText('Example string', 'selection')
+clipboard.writeText('Example String', 'selection')
 console.log(clipboard.readText('selection'))
 ```
 
@@ -22,9 +22,9 @@ The `clipboard` module has the following methods:
 
 ### `clipboard.readText([type])`
 
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
-Returns `string` - The content in the clipboard as plain text.
+Returns `String` - The content in the clipboard as plain text.
 
 ```js
 const { clipboard } = require('electron')
@@ -38,8 +38,8 @@ console.log(text)
 
 ### `clipboard.writeText(text[, type])`
 
-* `text` string
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `text` String
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes the `text` into the clipboard as plain text.
 
@@ -52,9 +52,9 @@ clipboard.writeText(text)
 
 ### `clipboard.readHTML([type])`
 
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
-Returns `string` - The content in the clipboard as markup.
+Returns `String` - The content in the clipboard as markup.
 
 ```js
 const { clipboard } = require('electron')
@@ -68,35 +68,35 @@ console.log(html)
 
 ### `clipboard.writeHTML(markup[, type])`
 
-* `markup` string
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `markup` String
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes `markup` to the clipboard.
 
 ```js
 const { clipboard } = require('electron')
 
-clipboard.writeHTML('<b>Hi</b>')
+clipboard.writeHTML('<b>Hi</b')
 ```
 
 ### `clipboard.readImage([type])`
 
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Returns [`NativeImage`](native-image.md) - The image content in the clipboard.
 
 ### `clipboard.writeImage(image[, type])`
 
 * `image` [NativeImage](native-image.md)
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes `image` to the clipboard.
 
 ### `clipboard.readRTF([type])`
 
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
-Returns `string` - The content in the clipboard as RTF.
+Returns `String` - The content in the clipboard as RTF.
 
 ```js
 const { clipboard } = require('electron')
@@ -110,8 +110,8 @@ console.log(rtf)
 
 ### `clipboard.writeRTF(text[, type])`
 
-* `text` string
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `text` String
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes the `text` into the clipboard in RTF.
 
@@ -126,20 +126,20 @@ clipboard.writeRTF(rtf)
 
 Returns `Object`:
 
-* `title` string
-* `url` string
+* `title` String
+* `url` String
 
 Returns an Object containing `title` and `url` keys representing the bookmark in
 the clipboard. The `title` and `url` values will be empty strings when the
-bookmark is unavailable.  The `title` value will always be empty on Windows.
+bookmark is unavailable.
 
 ### `clipboard.writeBookmark(title, url[, type])` _macOS_ _Windows_
 
-* `title` string - Unused on Windows
-* `url` string
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `title` String
+* `url` String
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
-Writes the `title` (macOS only) and `url` into the clipboard as a bookmark.
+Writes the `title` and `url` into the clipboard as a bookmark.
 
 **Note:** Most apps on Windows don't support pasting bookmarks into them so
 you can use `clipboard.write` to write both a bookmark and fallback text to the
@@ -156,28 +156,28 @@ clipboard.writeBookmark({
 
 ### `clipboard.readFindText()` _macOS_
 
-Returns `string` - The text on the find pasteboard, which is the pasteboard that holds information about the current state of the active application’s find panel.
+Returns `String` - The text on the find pasteboard, which is the pasteboard that holds information about the current state of the active application’s find panel.
 
 This method uses synchronous IPC when called from the renderer process.
 The cached value is reread from the find pasteboard whenever the application is activated.
 
 ### `clipboard.writeFindText(text)` _macOS_
 
-* `text` string
+* `text` String
 
 Writes the `text` into the find pasteboard (the pasteboard that holds information about the current state of the active application’s find panel) as plain text. This method uses synchronous IPC when called from the renderer process.
 
 ### `clipboard.clear([type])`
 
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Clears the clipboard content.
 
 ### `clipboard.availableFormats([type])`
 
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
-Returns `string[]` - An array of supported formats for the clipboard `type`.
+Returns `String[]` - An array of supported formats for the clipboard `type`.
 
 ```js
 const { clipboard } = require('electron')
@@ -189,32 +189,28 @@ console.log(formats)
 
 ### `clipboard.has(format[, type])` _Experimental_
 
-* `format` string
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `format` String
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
-Returns `boolean` - Whether the clipboard supports the specified `format`.
+Returns `Boolean` - Whether the clipboard supports the specified `format`.
 
 ```js
 const { clipboard } = require('electron')
 
-const hasFormat = clipboard.has('public/utf8-plain-text')
+const hasFormat = clipboard.has('<p>selection</p>')
 console.log(hasFormat)
-// 'true' or 'false'
+// 'true' or 'false
 ```
 
 ### `clipboard.read(format)` _Experimental_
 
-* `format` string
+* `format` String
 
-Returns `string` - Reads `format` type from the clipboard.
-
-`format` should contain valid ASCII characters and have `/` separator.
-`a/c`, `a/bc` are valid formats while `/abc`, `abc/`, `a/`, `/a`, `a`
-are not valid.
+Returns `String` - Reads `format` type from the clipboard.
 
 ### `clipboard.readBuffer(format)` _Experimental_
 
-* `format` string
+* `format` String
 
 Returns `Buffer` - Reads `format` type from the clipboard.
 
@@ -222,9 +218,9 @@ Returns `Buffer` - Reads `format` type from the clipboard.
 const { clipboard } = require('electron')
 
 const buffer = Buffer.from('this is binary', 'utf8')
-clipboard.writeBuffer('public/utf8-plain-text', buffer)
+clipboard.writeBuffer('public.utf8-plain-text', buffer)
 
-const ret = clipboard.readBuffer('public/utf8-plain-text')
+const ret = clipboard.readBuffer('public.utf8-plain-text')
 
 console.log(buffer.equals(out))
 // true
@@ -232,9 +228,9 @@ console.log(buffer.equals(out))
 
 ### `clipboard.writeBuffer(format, buffer[, type])` _Experimental_
 
-* `format` string
+* `format` String
 * `buffer` Buffer
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes the `buffer` into the clipboard as `format`.
 
@@ -242,18 +238,18 @@ Writes the `buffer` into the clipboard as `format`.
 const { clipboard } = require('electron')
 
 const buffer = Buffer.from('writeBuffer', 'utf8')
-clipboard.writeBuffer('public/utf8-plain-text', buffer)
+clipboard.writeBuffer('public.utf8-plain-text', buffer)
 ```
 
 ### `clipboard.write(data[, type])`
 
 * `data` Object
-  * `text` string (optional)
-  * `html` string (optional)
+  * `text` String (optional)
+  * `html` String (optional)
   * `image` [NativeImage](native-image.md) (optional)
-  * `rtf` string (optional)
-  * `bookmark` string (optional) - The title of the URL at `text`.
-* `type` string (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
+  * `rtf` String (optional)
+  * `bookmark` String (optional) - The title of the URL at `text`.
+* `type` String (optional) - Can be `selection` or `clipboard`; default is 'clipboard'. `selection` is only available on Linux.
 
 Writes `data` to the clipboard.
 

docs/api/command-line-switches.md

@@ -61,24 +61,26 @@ throttling in one window, you can take the hack of
 
 Forces the maximum disk space to be used by the disk cache, in bytes.
 
-### --enable-logging[=file]
+### --enable-api-filtering-logging
 
-Prints Chromium's logging to stderr (or a log file).
+Enables caller stack logging for the following APIs (filtering events):
 
-The `ELECTRON_ENABLE_LOGGING` environment variable has the same effect as
-passing `--enable-logging`.
+* `desktopCapturer.getSources()` / `desktop-capturer-get-sources`
+* `remote.require()` / `remote-require`
+* `remote.getGlobal()` / `remote-get-builtin`
+* `remote.getBuiltin()` / `remote-get-global`
+* `remote.getCurrentWindow()` / `remote-get-current-window`
+* `remote.getCurrentWebContents()` / `remote-get-current-web-contents`
 
-Passing `--enable-logging` will result in logs being printed on stderr.
-Passing `--enable-logging=file` will result in logs being saved to the file
-specified by `--log-file=...`, or to `electron_debug.log` in the user-data
-directory if `--log-file` is not specified.
+### --enable-logging
 
-> **Note:** On Windows, logs from child processes cannot be sent to stderr.
-> Logging to a file is the most reliable way to collect logs on Windows.
+Prints Chromium's logging into console.
 
-See also `--log-file`, `--log-level`, `--v`, and `--vmodule`.
+This switch can not be used in `app.commandLine.appendSwitch` since it is parsed
+earlier than user's app is loaded, but you can set the `ELECTRON_ENABLE_LOGGING`
+environment variable to achieve the same effect.
 
-### --force-fieldtrials=`trials`
+## --force-fieldtrials=`trials`
 
 Field trials to be forcefully enabled or disabled.
 
@@ -129,37 +131,10 @@ See the [Node.js documentation][node-cli] or run `node --help` in your terminal
 
 Set a custom locale.
 
-### --log-file=`path`
-
-If `--enable-logging` is specified, logs will be written to the given path. The
-parent directory must exist.
-
-Setting the `ELECTRON_LOG_FILE` environment variable is equivalent to passing
-this flag. If both are present, the command-line switch takes precedence.
-
 ### --log-net-log=`path`
 
 Enables net log events to be saved and writes them to `path`.
 
-### --log-level=`N`
-
-Sets the verbosity of logging when used together with `--enable-logging`.
-`N` should be one of [Chrome's LogSeverities][severities].
-
-Note that two complimentary logging mechanisms in Chromium -- `LOG()`
-and `VLOG()` -- are controlled by different switches. `--log-level`
-controls `LOG()` messages, while `--v` and `--vmodule` control `VLOG()`
-messages. So you may want to use a combination of these three switches
-depending on the granularity you want and what logging calls are made
-by the code you're trying to watch.
-
-See [Chromium Logging source][logging] for more information on how
-`LOG()` and `VLOG()` interact. Loosely speaking, `VLOG()` can be thought
-of as sub-levels / per-module levels inside `LOG(INFO)` to control the
-firehose of `LOG(INFO)` data.
-
-See also `--enable-logging`, `--log-level`, `--v`, and `--vmodule`.
-
 ### --no-proxy-server
 
 Don't use a proxy server and always make direct connections. Overrides any other
@@ -167,8 +142,7 @@ proxy server flags that are passed.
 
 ### --no-sandbox
 
-Disables the Chromium [sandbox](https://www.chromium.org/developers/design-documents/sandbox).
-Forces renderer process and Chromium helper processes to run un-sandboxed.
+Disables Chromium sandbox, which is now enabled by default.
 Should only be used for testing.
 
 ### --proxy-bypass-list=`hosts`
@@ -211,8 +185,6 @@ positive values are used for V-logging levels.
 
 This switch only works when `--enable-logging` is also passed.
 
-See also `--enable-logging`, `--log-level`, and `--vmodule`.
-
 ### --vmodule=`pattern`
 
 Gives the per-module maximal V-logging levels to override the value given by
@@ -225,8 +197,6 @@ logging level for all code in the source files under a `foo/bar` directory.
 
 This switch only works when `--enable-logging` is also passed.
 
-See also `--enable-logging`, `--log-level`, and `--v`.
-
 ### --force_high_performance_gpu
 
 Force using discrete GPU when there are multiple GPUs available.
@@ -274,8 +244,4 @@ By default inspector websocket url is available in stderr and under /json/list e
 [ready]: app.md#event-ready
 [play-silent-audio]: https://github.com/atom/atom/pull/9485/files
 [debugging-main-process]: ../tutorial/debugging-main-process.md
-[logging]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h
 [node-cli]: https://nodejs.org/api/cli.html
-[play-silent-audio]: https://github.com/atom/atom/pull/9485/files
-[ready]: app.md#event-ready
-[severities]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h?q=logging::LogSeverity&ss=chromium

docs/api/command-line.md

@@ -2,8 +2,7 @@
 
 > Manipulate the command line arguments for your app that Chromium reads
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 The following example shows how to check if the `--disable-gpu` flag is set.
 
@@ -20,8 +19,8 @@ document.
 
 #### `commandLine.appendSwitch(switch[, value])`
 
-* `switch` string - A command-line switch, without the leading `--`
-* `value` string (optional) - A value for the given switch
+* `switch` String - A command-line switch, without the leading `--`
+* `value` String (optional) - A value for the given switch
 
 Append a switch (with optional `value`) to Chromium's command line.
 
@@ -30,7 +29,7 @@ control Chromium's behavior.
 
 #### `commandLine.appendArgument(value)`
 
-* `value` string - The argument to append to the command line
+* `value` String - The argument to append to the command line
 
 Append an argument to Chromium's command line. The argument will be quoted
 correctly. Switches will precede arguments regardless of appending order.
@@ -42,23 +41,14 @@ control Chromium's behavior.
 
 #### `commandLine.hasSwitch(switch)`
 
-* `switch` string - A command-line switch
+* `switch` String - A command-line switch
 
-Returns `boolean` - Whether the command-line switch is present.
+Returns `Boolean` - Whether the command-line switch is present.
 
 #### `commandLine.getSwitchValue(switch)`
 
-* `switch` string - A command-line switch
+* `switch` String - A command-line switch
 
-Returns `string` - The command-line switch value.
+Returns `String` - The command-line switch value.
 
 **Note:** When the switch is not present or has no value, it returns empty string.
-
-#### `commandLine.removeSwitch(switch)`
-
-* `switch` string - A command-line switch
-
-Removes the specified switch from Chromium's command line.
-
-**Note:** This will not affect `process.argv`. The intended usage of this function is to
-control Chromium's behavior.

docs/api/content-tracing.md

@@ -32,7 +32,7 @@ The `contentTracing` module has the following methods:
 
 ### `contentTracing.getCategories()`
 
-Returns `Promise<string[]>` - resolves with an array of category groups once all child processes have acknowledged the `getCategories` request
+Returns `Promise<String[]>` - resolves with an array of category groups once all child processes have acknowledged the `getCategories` request
 
 Get a set of category groups. The category groups can change as new code paths
 are reached. See also the [list of built-in tracing
@@ -57,9 +57,9 @@ only one trace operation can be in progress at a time.
 
 ### `contentTracing.stopRecording([resultFilePath])`
 
-* `resultFilePath` string (optional)
+* `resultFilePath` String (optional)
 
-Returns `Promise<string>` - resolves with a path to a file that contains the traced data once all child processes have acknowledged the `stopRecording` request
+Returns `Promise<String>` - resolves with a path to a file that contains the traced data once all child processes have acknowledged the `stopRecording` request
 
 Stop recording on all processes.
 
@@ -77,8 +77,8 @@ will be returned in the promise.
 
 Returns `Promise<Object>` - Resolves with an object containing the `value` and `percentage` of trace buffer maximum usage
 
-* `value` number
-* `percentage` number
+* `value` Number
+* `percentage` Number
 
 Get the maximum usage across processes of trace buffer as a percentage of the
 full state.

docs/api/context-bridge.md

@@ -41,17 +41,17 @@ When `contextIsolation` is enabled in your `webPreferences` (this is the default
 
 The `contextBridge` module has the following methods:
 
-### `contextBridge.exposeInMainWorld(apiKey, api)`
+### `contextBridge.exposeInMainWorld(apiKey, api)` _Experimental_
 
-* `apiKey` string - The key to inject the API onto `window` with.  The API will be accessible on `window[apiKey]`.
+* `apiKey` String - The key to inject the API onto `window` with.  The API will be accessible on `window[apiKey]`.
 * `api` any - Your API, more information on what this API can be and how it works is available below.
 
 ## Usage
 
 ### API
 
-The `api` provided to [`exposeInMainWorld`](#contextbridgeexposeinmainworldapikey-api) must be a `Function`, `string`, `number`, `Array`, `boolean`, or an object
-whose keys are strings and values are a `Function`, `string`, `number`, `Array`, `boolean`, or another nested object that meets the same conditions.
+The `api` provided to [`exposeInMainWorld`](#contextbridgeexposeinmainworldapikey-api-experimental) must be a `Function`, `String`, `Number`, `Array`, `Boolean`, or an object
+whose keys are strings and values are a `Function`, `String`, `Number`, `Array`, `Boolean`, or another nested object that meets the same conditions.
 
 `Function` values are proxied to the other context and all other values are **copied** and **frozen**. Any data / primitives sent in
 the API become immutable and updates on either side of the bridge do not result in an update on the other side.
@@ -97,17 +97,16 @@ has been included below for completeness:
 
 | Type | Complexity | Parameter Support | Return Value Support | Limitations |
 | ---- | ---------- | ----------------- | -------------------- | ----------- |
-| `string` | Simple | ✅ | ✅ | N/A |
-| `number` | Simple | ✅ | ✅ | N/A |
-| `boolean` | Simple | ✅ | ✅ | N/A |
+| `String` | Simple | ✅ | ✅ | N/A |
+| `Number` | Simple | ✅ | ✅ | N/A |
+| `Boolean` | Simple | ✅ | ✅ | N/A |
 | `Object` | Complex | ✅ | ✅ | Keys must be supported using only "Simple" types in this table.  Values must be supported in this table.  Prototype modifications are dropped.  Sending custom classes will copy values but not the prototype. |
 | `Array` | Complex | ✅ | ✅ | Same limitations as the `Object` type |
-| `Error` | Complex | ✅ | ✅ | Errors that are thrown are also copied, this can result in the message and stack trace of the error changing slightly due to being thrown in a different context, and any custom properties on the Error object [will be lost](https://github.com/electron/electron/issues/25596) |
-| `Promise` | Complex | ✅ | ✅ | N/A
+| `Error` | Complex | ✅ | ✅ | Errors that are thrown are also copied, this can result in the message and stack trace of the error changing slightly due to being thrown in a different context |
+| `Promise` | Complex | ✅ | ✅ | Promises are only proxied if they are the return value or exact parameter.  Promises nested in arrays or objects will be dropped. |
 | `Function` | Complex | ✅ | ✅ | Prototype modifications are dropped.  Sending classes or constructors will not work. |
 | [Cloneable Types](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm) | Simple | ✅ | ✅ | See the linked document on cloneable types |
 | `Element` | Complex | ✅ | ✅ | Prototype modifications are dropped.  Sending custom elements will not work. |
-| `Blob` | Complex | ✅ | ✅ | N/A |
 | `Symbol` | N/A | ❌ | ❌ | Symbols cannot be copied across contexts so they are dropped |
 
 If the type you care about is not in the above table, it is probably not supported.

docs/api/cookies.md

@@ -2,8 +2,7 @@
 
 > Query and modify a session's cookies.
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 Instances of the `Cookies` class are accessed by using `cookies` property of
 a `Session`.
@@ -50,7 +49,7 @@ Returns:
 
 * `event` Event
 * `cookie` [Cookie](structures/cookie.md) - The cookie that was changed.
-* `cause` string - The cause of the change with one of the following values:
+* `cause` String - The cause of the change with one of the following values:
   * `explicit` - The cookie was changed directly by a consumer's action.
   * `overwrite` - The cookie was automatically removed due to an insert
     operation that overwrote it.
@@ -58,7 +57,7 @@ Returns:
   * `evicted` - The cookie was automatically evicted during garbage collection.
   * `expired-overwrite` - The cookie was overwritten with an already-expired
     expiration date.
-* `removed` boolean - `true` if the cookie was removed, `false` otherwise.
+* `removed` Boolean - `true` if the cookie was removed, `false` otherwise.
 
 Emitted when a cookie is changed because it was added, edited, removed, or
 expired.
@@ -70,14 +69,14 @@ The following methods are available on instances of `Cookies`:
 #### `cookies.get(filter)`
 
 * `filter` Object
-  * `url` string (optional) - Retrieves cookies which are associated with
+  * `url` String (optional) - Retrieves cookies which are associated with
     `url`. Empty implies retrieving cookies of all URLs.
-  * `name` string (optional) - Filters cookies by name.
-  * `domain` string (optional) - Retrieves cookies whose domains match or are
+  * `name` String (optional) - Filters cookies by name.
+  * `domain` String (optional) - Retrieves cookies whose domains match or are
     subdomains of `domains`.
-  * `path` string (optional) - Retrieves cookies whose path matches `path`.
-  * `secure` boolean (optional) - Filters cookies by their Secure property.
-  * `session` boolean (optional) - Filters out session or persistent cookies.
+  * `path` String (optional) - Retrieves cookies whose path matches `path`.
+  * `secure` Boolean (optional) - Filters cookies by their Secure property.
+  * `session` Boolean (optional) - Filters out session or persistent cookies.
 
 Returns `Promise<Cookie[]>` - A promise which resolves an array of cookie objects.
 
@@ -87,19 +86,19 @@ the response.
 #### `cookies.set(details)`
 
 * `details` Object
-  * `url` string - The URL to associate the cookie with. The promise will be rejected if the URL is invalid.
-  * `name` string (optional) - The name of the cookie. Empty by default if omitted.
-  * `value` string (optional) - The value of the cookie. Empty by default if omitted.
-  * `domain` string (optional) - The domain of the cookie; this will be normalized with a preceding dot so that it's also valid for subdomains. Empty by default if omitted.
-  * `path` string (optional) - The path of the cookie. Empty by default if omitted.
-  * `secure` boolean (optional) - Whether the cookie should be marked as Secure. Defaults to
-    false unless [Same Site=None](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite#samesitenone_requires_secure) attribute is used.
-  * `httpOnly` boolean (optional) - Whether the cookie should be marked as HTTP only.
+  * `url` String - The URL to associate the cookie with. The promise will be rejected if the URL is invalid.
+  * `name` String (optional) - The name of the cookie. Empty by default if omitted.
+  * `value` String (optional) - The value of the cookie. Empty by default if omitted.
+  * `domain` String (optional) - The domain of the cookie; this will be normalized with a preceding dot so that it's also valid for subdomains. Empty by default if omitted.
+  * `path` String (optional) - The path of the cookie. Empty by default if omitted.
+  * `secure` Boolean (optional) - Whether the cookie should be marked as Secure. Defaults to
+    false.
+  * `httpOnly` Boolean (optional) - Whether the cookie should be marked as HTTP only.
     Defaults to false.
   * `expirationDate` Double (optional) - The expiration date of the cookie as the number of
     seconds since the UNIX epoch. If omitted then the cookie becomes a session
     cookie and will not be retained between sessions.
-  * `sameSite` string (optional) - The [Same Site](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#SameSite_cookies) policy to apply to this cookie.  Can be `unspecified`, `no_restriction`, `lax` or `strict`.  Default is `lax`.
+  * `sameSite` String (optional) - The [Same Site](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#SameSite_cookies) policy to apply to this cookie.  Can be `unspecified`, `no_restriction`, `lax` or `strict`.  Default is `no_restriction`.
 
 Returns `Promise<void>` - A promise which resolves when the cookie has been set
 
@@ -107,8 +106,8 @@ Sets a cookie with `details`.
 
 #### `cookies.remove(url, name)`
 
-* `url` string - The URL associated with the cookie.
-* `name` string - The name of cookie to remove.
+* `url` String - The URL associated with the cookie.
+* `name` String - The name of cookie to remove.
 
 Returns `Promise<void>` - A promise which resolves when the cookie has been removed
 

docs/api/crash-reporter.md

@@ -19,23 +19,56 @@ following projects:
 * [socorro](https://github.com/mozilla/socorro)
 * [mini-breakpad-server](https://github.com/electron/mini-breakpad-server)
 
-> **Note:** Electron uses Crashpad, not Breakpad, to collect and upload
-> crashes, but for the time being, the [upload protocol is the same](https://chromium.googlesource.com/crashpad/crashpad/+/HEAD/doc/overview_design.md#Upload-to-collection-server).
-
 Or use a 3rd party hosted solution:
 
 * [Backtrace](https://backtrace.io/electron/)
 * [Sentry](https://docs.sentry.io/clients/electron)
 * [BugSplat](https://www.bugsplat.com/docs/platforms/electron)
-* [Bugsnag](https://docs.bugsnag.com/platforms/electron/)
 
 Crash reports are stored temporarily before being uploaded in a directory
-underneath the app's user data directory, called 'Crashpad'. You can override
-this directory by calling `app.setPath('crashDumps', '/path/to/crashes')`
-before starting the crash reporter.
+underneath the app's user data directory (called 'Crashpad' on Windows and Mac,
+or 'Crash Reports' on Linux). You can override this directory by calling
+`app.setPath('crashDumps', '/path/to/crashes')` before starting the crash
+reporter.
 
-Electron uses [crashpad](https://chromium.googlesource.com/crashpad/crashpad/+/refs/heads/main/README.md)
-to monitor and report crashes.
+On Windows and macOS, Electron uses
+[crashpad](https://chromium.googlesource.com/crashpad/crashpad/+/master/README.md)
+to monitor and report crashes. On Linux, Electron uses
+[breakpad](https://chromium.googlesource.com/breakpad/breakpad/+/master/). This
+is an implementation detail driven by Chromium, and it may change in future. In
+particular, crashpad is newer and will likely eventually replace breakpad on
+all platforms.
+
+### Note about Node child processes on Linux
+
+If you are using the Node.js `child_process` module and want to report crashes
+from those processes on Linux, there is an extra step you will need to take to
+properly initialize the crash reporter in the child process. This is not
+necessary on Mac or Windows, as those platforms use Crashpad, which
+automatically monitors child processes.
+
+Since `require('electron')` is not available in Node child processes, the
+following APIs are available on the `process` object in Node child processes.
+Note that, on Linux, each Node child process has its own separate instance of
+the breakpad crash reporter. This is dissimilar to renderer child processes,
+which have a "stub" breakpad reporter which returns information to the main
+process for reporting.
+
+#### `process.crashReporter.start(options)`
+
+See [`crashReporter.start()`](#crashreporterstartoptions).
+
+#### `process.crashReporter.getParameters()`
+
+See [`crashReporter.getParameters()`](#crashreportergetparameters).
+
+#### `process.crashReporter.addExtraParameter(key, value)`
+
+See [`crashReporter.addExtraParameter(key, value)`](#crashreporteraddextraparameterkey-value).
+
+#### `process.crashReporter.removeExtraParameter(key)`
+
+See [`crashReporter.removeExtraParameter(key)`](#crashreporterremoveextraparameterkey).
 
 ## Methods
 
@@ -44,29 +77,29 @@ The `crashReporter` module has the following methods:
 ### `crashReporter.start(options)`
 
 * `options` Object
-  * `submitURL` string (optional) - URL that crash reports will be sent to as
+  * `submitURL` String (optional) - URL that crash reports will be sent to as
     POST. Required unless `uploadToServer` is `false`.
-  * `productName` string (optional) - Defaults to `app.name`.
-  * `companyName` string (optional) _Deprecated_ - Deprecated alias for
+  * `productName` String (optional) - Defaults to `app.name`.
+  * `companyName` String (optional) _Deprecated_ - Deprecated alias for
     `{ globalExtra: { _companyName: ... } }`.
-  * `uploadToServer` boolean (optional) - Whether crash reports should be sent
+  * `uploadToServer` Boolean (optional) - Whether crash reports should be sent
     to the server. If false, crash reports will be collected and stored in the
     crashes directory, but not uploaded. Default is `true`.
-  * `ignoreSystemCrashHandler` boolean (optional) - If true, crashes generated
+  * `ignoreSystemCrashHandler` Boolean (optional) - If true, crashes generated
     in the main process will not be forwarded to the system crash handler.
     Default is `false`.
-  * `rateLimit` boolean (optional) _macOS_ _Windows_ - If true, limit the
+  * `rateLimit` Boolean (optional) _macOS_ _Windows_ - If true, limit the
     number of crashes uploaded to 1/hour. Default is `false`.
-  * `compress` boolean (optional) - If true, crash reports will be compressed
+  * `compress` Boolean (optional) - If true, crash reports will be compressed
     and uploaded with `Content-Encoding: gzip`. Default is `true`.
-  * `extra` Record<string, string> (optional) - Extra string key/value
+  * `extra` Record<String, String> (optional) - Extra string key/value
     annotations that will be sent along with crash reports that are generated
     in the main process. Only string values are supported. Crashes generated in
     child processes will not contain these extra
     parameters to crash reports generated from child processes, call
     [`addExtraParameter`](#crashreporteraddextraparameterkey-value) from the
     child process.
-  * `globalExtra` Record<string, string> (optional) - Extra string key/value
+  * `globalExtra` Record<String, String> (optional) - Extra string key/value
     annotations that will be sent along with any crash reports generated in any
     process. These annotations cannot be changed once the crash reporter has
     been started. If a key is present in both the global extra parameters and
@@ -118,14 +151,14 @@ ID.
 
 ### `crashReporter.getUploadToServer()`
 
-Returns `boolean` - Whether reports should be submitted to the server. Set through
+Returns `Boolean` - Whether reports should be submitted to the server. Set through
 the `start` method or `setUploadToServer`.
 
 **Note:** This method is only available in the main process.
 
 ### `crashReporter.setUploadToServer(uploadToServer)`
 
-* `uploadToServer` boolean - Whether reports should be submitted to the server.
+* `uploadToServer` Boolean - Whether reports should be submitted to the server.
 
 This would normally be controlled by user preferences. This has no effect if
 called before `start` is called.
@@ -134,8 +167,8 @@ called before `start` is called.
 
 ### `crashReporter.addExtraParameter(key, value)`
 
-* `key` string - Parameter key, must be no longer than 39 bytes.
-* `value` string - Parameter value, must be no longer than 127 bytes.
+* `key` String - Parameter key, must be no longer than 39 bytes.
+* `value` String - Parameter value, must be no longer than 127 bytes.
 
 Set an extra parameter to be sent with the crash report. The values specified
 here will be sent in addition to any values set via the `extra` option when
@@ -153,57 +186,37 @@ names must be no longer than 39 bytes, and values must be no longer than 20320
 bytes. Keys with names longer than the maximum will be silently ignored. Key
 values longer than the maximum length will be truncated.
 
+**Note:** On linux values that are longer than 127 bytes will be chunked into
+multiple keys, each 127 bytes in length.  E.g. `addExtraParameter('foo', 'a'.repeat(130))`
+will result in two chunked keys `foo__1` and `foo__2`, the first will contain
+the first 127 bytes and the second will contain the remaining 3 bytes.  On
+your crash reporting backend you should stitch together keys in this format.
+
 ### `crashReporter.removeExtraParameter(key)`
 
-* `key` string - Parameter key, must be no longer than 39 bytes.
+* `key` String - Parameter key, must be no longer than 39 bytes.
 
 Remove an extra parameter from the current set of parameters. Future crashes
 will not include this parameter.
 
 ### `crashReporter.getParameters()`
 
-Returns `Record<string, string>` - The current 'extra' parameters of the crash reporter.
-
-## In Node child processes
-
-Since `require('electron')` is not available in Node child processes, the
-following APIs are available on the `process` object in Node child processes.
-
-#### `process.crashReporter.start(options)`
-
-See [`crashReporter.start()`](#crashreporterstartoptions).
-
-Note that if the crash reporter is started in the main process, it will
-automatically monitor child processes, so it should not be started in the child
-process. Only use this method if the main process does not initialize the crash
-reporter.
-
-#### `process.crashReporter.getParameters()`
-
-See [`crashReporter.getParameters()`](#crashreportergetparameters).
-
-#### `process.crashReporter.addExtraParameter(key, value)`
-
-See [`crashReporter.addExtraParameter(key, value)`](#crashreporteraddextraparameterkey-value).
-
-#### `process.crashReporter.removeExtraParameter(key)`
-
-See [`crashReporter.removeExtraParameter(key)`](#crashreporterremoveextraparameterkey).
+Returns `Record<String, String>` - The current 'extra' parameters of the crash reporter.
 
 ## Crash Report Payload
 
 The crash reporter will send the following data to the `submitURL` as
 a `multipart/form-data` `POST`:
 
-* `ver` string - The version of Electron.
-* `platform` string - e.g. 'win32'.
-* `process_type` string - e.g. 'renderer'.
-* `guid` string - e.g. '5e1286fc-da97-479e-918b-6bfb0c3d1c72'.
-* `_version` string - The version in `package.json`.
-* `_productName` string - The product name in the `crashReporter` `options`
+* `ver` String - The version of Electron.
+* `platform` String - e.g. 'win32'.
+* `process_type` String - e.g. 'renderer'.
+* `guid` String - e.g. '5e1286fc-da97-479e-918b-6bfb0c3d1c72'.
+* `_version` String - The version in `package.json`.
+* `_productName` String - The product name in the `crashReporter` `options`
   object.
-* `prod` string - Name of the underlying product. In this case Electron.
-* `_companyName` string - The company name in the `crashReporter` `options`
+* `prod` String - Name of the underlying product. In this case Electron.
+* `_companyName` String - The company name in the `crashReporter` `options`
   object.
 * `upload_file_minidump` File - The crash report in the format of `minidump`.
 * All level one properties of the `extra` object in the `crashReporter`

docs/api/debugger.md

@@ -2,8 +2,7 @@
 
 > An alternate transport for Chrome's remote debugging protocol.
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 Chrome Developer Tools has a [special binding][rdp] available at JavaScript
 runtime that allows interacting with pages and instrumenting them.
@@ -40,7 +39,7 @@ win.webContents.debugger.sendCommand('Network.enable')
 Returns:
 
 * `event` Event
-* `reason` string - Reason for detaching debugger.
+* `reason` String - Reason for detaching debugger.
 
 Emitted when the debugging session is terminated. This happens either when
 `webContents` is closed or devtools is invoked for the attached `webContents`.
@@ -50,10 +49,10 @@ Emitted when the debugging session is terminated. This happens either when
 Returns:
 
 * `event` Event
-* `method` string - Method name.
+* `method` String - Method name.
 * `params` any - Event parameters defined by the 'parameters'
    attribute in the remote debugging protocol.
-* `sessionId` string - Unique identifier of attached debugging session,
+* `sessionId` String - Unique identifier of attached debugging session,
    will match the value sent from `debugger.sendCommand`.
 
 Emitted whenever the debugging target issues an instrumentation event.
@@ -65,13 +64,13 @@ Emitted whenever the debugging target issues an instrumentation event.
 
 #### `debugger.attach([protocolVersion])`
 
-* `protocolVersion` string (optional) - Requested debugging protocol version.
+* `protocolVersion` String (optional) - Requested debugging protocol version.
 
 Attaches the debugger to the `webContents`.
 
 #### `debugger.isAttached()`
 
-Returns `boolean` - Whether a debugger is attached to the `webContents`.
+Returns `Boolean` - Whether a debugger is attached to the `webContents`.
 
 #### `debugger.detach()`
 
@@ -79,10 +78,10 @@ Detaches the debugger from the `webContents`.
 
 #### `debugger.sendCommand(method[, commandParams, sessionId])`
 
-* `method` string - Method name, should be one of the methods defined by the
+* `method` String - Method name, should be one of the methods defined by the
    [remote debugging protocol][rdp].
 * `commandParams` any (optional) - JSON object with request parameters.
-* `sessionId` string (optional) - send command to the target with associated
+* `sessionId` String (optional) - send command to the target with associated
    debugging session id. The initial value can be obtained by sending
    [Target.attachToTarget][attachToTarget] message.
 

docs/api/desktop-capturer.md

@@ -3,49 +3,40 @@
 > Access information about media sources that can be used to capture audio and
 > video from the desktop using the [`navigator.mediaDevices.getUserMedia`] API.
 
-Process: [Main](../glossary.md#main-process)
+Process: [Main](../glossary.md#main-process), [Renderer](../glossary.md#renderer-process)
 
 The following example shows how to capture video from a desktop window whose
 title is `Electron`:
 
 ```javascript
-// In the main process.
+// In the renderer process.
 const { desktopCapturer } = require('electron')
 
 desktopCapturer.getSources({ types: ['window', 'screen'] }).then(async sources => {
   for (const source of sources) {
     if (source.name === 'Electron') {
-      mainWindow.webContents.send('SET_SOURCE', source.id)
+      try {
+        const stream = await navigator.mediaDevices.getUserMedia({
+          audio: false,
+          video: {
+            mandatory: {
+              chromeMediaSource: 'desktop',
+              chromeMediaSourceId: source.id,
+              minWidth: 1280,
+              maxWidth: 1280,
+              minHeight: 720,
+              maxHeight: 720
+            }
+          }
+        })
+        handleStream(stream)
+      } catch (e) {
+        handleError(e)
+      }
       return
     }
   }
 })
-```
-
-```javascript
-// In the preload script.
-const { ipcRenderer } = require('electron')
-
-ipcRenderer.on('SET_SOURCE', async (event, sourceId) => {
-  try {
-    const stream = await navigator.mediaDevices.getUserMedia({
-      audio: false,
-      video: {
-        mandatory: {
-          chromeMediaSource: 'desktop',
-          chromeMediaSourceId: sourceId,
-          minWidth: 1280,
-          maxWidth: 1280,
-          minHeight: 720,
-          maxHeight: 720
-        }
-      }
-    })
-    handleStream(stream)
-  } catch (e) {
-    handleError(e)
-  }
-})
 
 function handleStream (stream) {
   const video = document.querySelector('video')
@@ -88,13 +79,13 @@ The `desktopCapturer` module has the following methods:
 ### `desktopCapturer.getSources(options)`
 
 * `options` Object
-  * `types` string[] - An array of strings that lists the types of desktop sources
+  * `types` String[] - An array of Strings that lists the types of desktop sources
     to be captured, available types are `screen` and `window`.
   * `thumbnailSize` [Size](structures/size.md) (optional) - The size that the media source thumbnail
     should be scaled to. Default is `150` x `150`. Set width or height to 0 when you do not need
     the thumbnails. This will save the processing time required for capturing the content of each
     window and screen.
-  * `fetchWindowIcons` boolean (optional) - Set to true to enable fetching window icons. The default
+  * `fetchWindowIcons` Boolean (optional) - Set to true to enable fetching window icons. The default
     value is false. When false the appIcon property of the sources return null. Same if a source has
     the type screen.
 

docs/api/dialog.md

@@ -19,12 +19,12 @@ The `dialog` module has the following methods:
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` string (optional)
-  * `defaultPath` string (optional)
-  * `buttonLabel` string (optional) - Custom label for the confirmation button, when
+  * `title` String (optional)
+  * `defaultPath` String (optional)
+  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
     left empty the default label will be used.
   * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `properties` string[] (optional) - Contains which features the dialog should
+  * `properties` String[] (optional) - Contains which features the dialog should
     use. The following values are supported:
     * `openFile` - Allow files to be selected.
     * `openDirectory` - Allow directories to be selected.
@@ -41,11 +41,11 @@ The `dialog` module has the following methods:
     * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
       as a directory instead of a file.
     * `dontAddToRecent` _Windows_ - Do not add the item being opened to the recent documents list.
-  * `message` string (optional) _macOS_ - Message to display above input
+  * `message` String (optional) _macOS_ - Message to display above input
     boxes.
-  * `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
+  * `securityScopedBookmarks` Boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
 
-Returns `string[] | undefined`, the file paths chosen by the user; if the dialog is cancelled it returns `undefined`.
+Returns `String[] | undefined`, the file paths chosen by the user; if the dialog is cancelled it returns `undefined`.
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
 
@@ -82,12 +82,12 @@ dialog.showOpenDialogSync(mainWindow, {
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` string (optional)
-  * `defaultPath` string (optional)
-  * `buttonLabel` string (optional) - Custom label for the confirmation button, when
+  * `title` String (optional)
+  * `defaultPath` String (optional)
+  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
     left empty the default label will be used.
   * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `properties` string[] (optional) - Contains which features the dialog should
+  * `properties` String[] (optional) - Contains which features the dialog should
     use. The following values are supported:
     * `openFile` - Allow files to be selected.
     * `openDirectory` - Allow directories to be selected.
@@ -104,15 +104,15 @@ dialog.showOpenDialogSync(mainWindow, {
     * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
       as a directory instead of a file.
     * `dontAddToRecent` _Windows_ - Do not add the item being opened to the recent documents list.
-  * `message` string (optional) _macOS_ - Message to display above input
+  * `message` String (optional) _macOS_ - Message to display above input
     boxes.
-  * `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
+  * `securityScopedBookmarks` Boolean (optional) _macOS_ _mas_ - Create [security scoped bookmarks](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store.
 
 Returns `Promise<Object>` - Resolve with an object containing the following:
 
-* `canceled` boolean - whether or not the dialog was canceled.
-* `filePaths` string[] - An array of file paths chosen by the user. If the dialog is cancelled this will be an empty array.
-* `bookmarks` string[]&#32;(optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated. (For return values, see [table here](#bookmarks-array).)
+* `canceled` Boolean - whether or not the dialog was canceled.
+* `filePaths` String[] - An array of file paths chosen by the user. If the dialog is cancelled this will be an empty array.
+* `bookmarks` String[] (optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated. (For return values, see [table here](#bookmarks-array).)
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
 
@@ -154,27 +154,27 @@ dialog.showOpenDialog(mainWindow, {
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` string (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
-  * `defaultPath` string (optional) - Absolute directory path, absolute file
+  * `title` String (optional)
+  * `defaultPath` String (optional) - Absolute directory path, absolute file
     path, or file name to use by default.
-  * `buttonLabel` string (optional) - Custom label for the confirmation button, when
+  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
     left empty the default label will be used.
   * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `message` string (optional) _macOS_ - Message to display above text fields.
-  * `nameFieldLabel` string (optional) _macOS_ - Custom label for the text
+  * `message` String (optional) _macOS_ - Message to display above text fields.
+  * `nameFieldLabel` String (optional) _macOS_ - Custom label for the text
     displayed in front of the filename text field.
-  * `showsTagField` boolean (optional) _macOS_ - Show the tags input box,
+  * `showsTagField` Boolean (optional) _macOS_ - Show the tags input box,
     defaults to `true`.
-  * `properties` string[]&#32;(optional)
+  * `properties` String[] (optional)
     * `showHiddenFiles` - Show hidden files in dialog.
     * `createDirectory` _macOS_ - Allow creating new directories from dialog.
     * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
       as a directory instead of a file.
     * `showOverwriteConfirmation` _Linux_ - Sets whether the user will be presented a confirmation dialog if the user types a file name that already exists.
     * `dontAddToRecent` _Windows_ - Do not add the item being saved to the recent documents list.
-  * `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create a [security scoped bookmark](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store. If this option is enabled and the file doesn't already exist a blank file will be created at the chosen path.
+  * `securityScopedBookmarks` Boolean (optional) _macOS_ _mas_ - Create a [security scoped bookmark](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store. If this option is enabled and the file doesn't already exist a blank file will be created at the chosen path.
 
-Returns `string | undefined`, the path of the file chosen by the user; if the dialog is cancelled it returns `undefined`.
+Returns `String | undefined`, the path of the file chosen by the user; if the dialog is cancelled it returns `undefined`.
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
 
@@ -185,30 +185,30 @@ The `filters` specifies an array of file types that can be displayed, see
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` string (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
-  * `defaultPath` string (optional) - Absolute directory path, absolute file
+  * `title` String (optional)
+  * `defaultPath` String (optional) - Absolute directory path, absolute file
     path, or file name to use by default.
-  * `buttonLabel` string (optional) - Custom label for the confirmation button, when
+  * `buttonLabel` String (optional) - Custom label for the confirmation button, when
     left empty the default label will be used.
   * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `message` string (optional) _macOS_ - Message to display above text fields.
-  * `nameFieldLabel` string (optional) _macOS_ - Custom label for the text
+  * `message` String (optional) _macOS_ - Message to display above text fields.
+  * `nameFieldLabel` String (optional) _macOS_ - Custom label for the text
     displayed in front of the filename text field.
-  * `showsTagField` boolean (optional) _macOS_ - Show the tags input box, defaults to `true`.
-  * `properties` string[]&#32;(optional)
+  * `showsTagField` Boolean (optional) _macOS_ - Show the tags input box, defaults to `true`.
+  * `properties` String[] (optional)
     * `showHiddenFiles` - Show hidden files in dialog.
     * `createDirectory` _macOS_ - Allow creating new directories from dialog.
     * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
       as a directory instead of a file.
     * `showOverwriteConfirmation` _Linux_ - Sets whether the user will be presented a confirmation dialog if the user types a file name that already exists.
     * `dontAddToRecent` _Windows_ - Do not add the item being saved to the recent documents list.
-  * `securityScopedBookmarks` boolean (optional) _macOS_ _mas_ - Create a [security scoped bookmark](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store. If this option is enabled and the file doesn't already exist a blank file will be created at the chosen path.
+  * `securityScopedBookmarks` Boolean (optional) _macOS_ _mas_ - Create a [security scoped bookmark](https://developer.apple.com/library/content/documentation/Security/Conceptual/AppSandboxDesignGuide/AppSandboxInDepth/AppSandboxInDepth.html#//apple_ref/doc/uid/TP40011183-CH3-SW16) when packaged for the Mac App Store. If this option is enabled and the file doesn't already exist a blank file will be created at the chosen path.
 
 Returns `Promise<Object>` - Resolve with an object containing the following:
 
-* `canceled` boolean - whether or not the dialog was canceled.
-* `filePath` string (optional) - If the dialog is canceled, this will be `undefined`.
-* `bookmark` string (optional) _macOS_ _mas_ - Base64 encoded string which contains the security scoped bookmark data for the saved file. `securityScopedBookmarks` must be enabled for this to be present. (For return values, see [table here](#bookmarks-array).)
+* `canceled` Boolean - whether or not the dialog was canceled.
+* `filePath` String (optional) - If the dialog is canceled, this will be `undefined`.
+* `bookmark` String (optional) _macOS_ _mas_ - Base64 encoded string which contains the security scoped bookmark data for the saved file. `securityScopedBookmarks` must be enabled for this to be present. (For return values, see [table here](#bookmarks-array).)
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
 
@@ -222,29 +222,32 @@ expanding and collapsing the dialog.
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `message` string - Content of the message box.
-  * `type` string (optional) - Can be `"none"`, `"info"`, `"error"`, `"question"` or
+  * `message` String - Content of the message box.
+  * `type` String (optional) - Can be `"none"`, `"info"`, `"error"`, `"question"` or
   `"warning"`. On Windows, `"question"` displays the same icon as `"info"`, unless
   you set an icon using the `"icon"` option. On macOS, both `"warning"` and
   `"error"` display the same warning icon.
-  * `buttons` string[]&#32;(optional) - Array of texts for buttons. On Windows, an empty array
+  * `buttons` String[] (optional) - Array of texts for buttons. On Windows, an empty array
     will result in one button labeled "OK".
   * `defaultId` Integer (optional) - Index of the button in the buttons array which will
     be selected by default when the message box opens.
-  * `title` string (optional) - Title of the message box, some platforms will not show it.
-  * `detail` string (optional) - Extra information of the message.
-  * `icon` ([NativeImage](native-image.md) | string) (optional)
-  * `textWidth` Integer (optional) _macOS_ - Custom width of the text in the message box.
+  * `title` String (optional) - Title of the message box, some platforms will not show it.
+  * `detail` String (optional) - Extra information of the message.
+  * `checkboxLabel` String (optional) - If provided, the message box will
+    include a checkbox with the given label.
+  * `checkboxChecked` Boolean (optional) - Initial checked state of the
+    checkbox. `false` by default.
+  * `icon` ([NativeImage](native-image.md) | String) (optional)
   * `cancelId` Integer (optional) - The index of the button to be used to cancel the dialog, via
     the `Esc` key. By default this is assigned to the first button with "cancel" or "no" as the
     label. If no such labeled buttons exist and this option is not set, `0` will be used as the
     return value.
-  * `noLink` boolean (optional) - On Windows Electron will try to figure out which one of
+  * `noLink` Boolean (optional) - On Windows Electron will try to figure out which one of
     the `buttons` are common buttons (like "Cancel" or "Yes"), and show the
     others as command links in the dialog. This can make the dialog appear in
     the style of modern Windows apps. If you don't like this behavior, you can
     set `noLink` to `true`.
-  * `normalizeAccessKeys` boolean (optional) - Normalize the keyboard access keys
+  * `normalizeAccessKeys` Boolean (optional) - Normalize the keyboard access keys
     across platforms. Default is `false`. Enabling this assumes `&` is used in
     the button labels for the placement of the keyboard shortcut access key
     and labels will be converted so they work correctly on each platform, `&`
@@ -265,38 +268,32 @@ If `browserWindow` is not shown dialog will not be attached to it. In such case
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `message` string - Content of the message box.
-  * `type` string (optional) - Can be `"none"`, `"info"`, `"error"`, `"question"` or
+  * `message` String - Content of the message box.
+  * `type` String (optional) - Can be `"none"`, `"info"`, `"error"`, `"question"` or
   `"warning"`. On Windows, `"question"` displays the same icon as `"info"`, unless
   you set an icon using the `"icon"` option. On macOS, both `"warning"` and
   `"error"` display the same warning icon.
-  * `buttons` string[]&#32;(optional) - Array of texts for buttons. On Windows, an empty array
+  * `buttons` String[] (optional) - Array of texts for buttons. On Windows, an empty array
     will result in one button labeled "OK".
   * `defaultId` Integer (optional) - Index of the button in the buttons array which will
     be selected by default when the message box opens.
-  * `signal` AbortSignal (optional) - Pass an instance of [AbortSignal][] to
-    optionally close the message box, the message box will behave as if it was
-    cancelled by the user. On macOS, `signal` does not work with message boxes
-    that do not have a parent window, since those message boxes run
-    synchronously due to platform limitations.
-  * `title` string (optional) - Title of the message box, some platforms will not show it.
-  * `detail` string (optional) - Extra information of the message.
-  * `checkboxLabel` string (optional) - If provided, the message box will
+  * `title` String (optional) - Title of the message box, some platforms will not show it.
+  * `detail` String (optional) - Extra information of the message.
+  * `checkboxLabel` String (optional) - If provided, the message box will
     include a checkbox with the given label.
-  * `checkboxChecked` boolean (optional) - Initial checked state of the
+  * `checkboxChecked` Boolean (optional) - Initial checked state of the
     checkbox. `false` by default.
-  * `icon` ([NativeImage](native-image.md) | string) (optional)
-  * `textWidth` Integer (optional) _macOS_ - Custom width of the text in the message box.
+  * `icon` [NativeImage](native-image.md) (optional)
   * `cancelId` Integer (optional) - The index of the button to be used to cancel the dialog, via
     the `Esc` key. By default this is assigned to the first button with "cancel" or "no" as the
     label. If no such labeled buttons exist and this option is not set, `0` will be used as the
     return value.
-  * `noLink` boolean (optional) - On Windows Electron will try to figure out which one of
+  * `noLink` Boolean (optional) - On Windows Electron will try to figure out which one of
     the `buttons` are common buttons (like "Cancel" or "Yes"), and show the
     others as command links in the dialog. This can make the dialog appear in
     the style of modern Windows apps. If you don't like this behavior, you can
     set `noLink` to `true`.
-  * `normalizeAccessKeys` boolean (optional) - Normalize the keyboard access keys
+  * `normalizeAccessKeys` Boolean (optional) - Normalize the keyboard access keys
     across platforms. Default is `false`. Enabling this assumes `&` is used in
     the button labels for the placement of the keyboard shortcut access key
     and labels will be converted so they work correctly on each platform, `&`
@@ -307,8 +304,8 @@ If `browserWindow` is not shown dialog will not be attached to it. In such case
 
 Returns `Promise<Object>` - resolves with a promise containing the following properties:
 
-* `response` number - The index of the clicked button.
-* `checkboxChecked` boolean - The checked state of the checkbox if
+* `response` Number - The index of the clicked button.
+* `checkboxChecked` Boolean - The checked state of the checkbox if
   `checkboxLabel` was set. Otherwise `false`.
 
 Shows a message box.
@@ -317,8 +314,8 @@ The `browserWindow` argument allows the dialog to attach itself to a parent wind
 
 ### `dialog.showErrorBox(title, content)`
 
-* `title` string - The title to display in the error box.
-* `content` string - The text content to display in the error box.
+* `title` String - The title to display in the error box.
+* `content` String - The text content to display in the error box.
 
 Displays a modal dialog that shows an error message.
 
@@ -332,7 +329,7 @@ and no GUI dialog will appear.
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
   * `certificate` [Certificate](structures/certificate.md) - The certificate to trust/import.
-  * `message` string - The message to display to the user.
+  * `message` String - The message to display to the user.
 
 Returns `Promise<void>` - resolves when the certificate trust dialog is shown.
 
@@ -367,5 +364,3 @@ window is provided.
 
 You can call `BrowserWindow.getCurrentWindow().setSheetOffset(offset)` to change
 the offset from the window frame where sheets are attached.
-
-[AbortSignal]: https://nodejs.org/api/globals.html#globals_class_abortsignal

docs/api/dock.md

@@ -2,8 +2,7 @@
 
 > Control your app in the macOS dock
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 The following example shows how to bounce your icon on the dock.
 
@@ -16,7 +15,7 @@ app.dock.bounce()
 
 #### `dock.bounce([type])` _macOS_
 
-* `type` string (optional) - Can be `critical` or `informational`. The default is
+* `type` String (optional) - Can be `critical` or `informational`. The default is
  `informational`
 
 Returns `Integer` - an ID representing the request.
@@ -28,7 +27,7 @@ When `informational` is passed, the dock icon will bounce for one second.
 However, the request remains active until either the application becomes active
 or the request is canceled.
 
-**Note:** This method can only be used while the app is not focused; when the app is focused it will return -1.
+**Nota Bene:** This method can only be used while the app is not focused; when the app is focused it will return -1.
 
 #### `dock.cancelBounce(id)` _macOS_
 
@@ -38,19 +37,19 @@ Cancel the bounce of `id`.
 
 #### `dock.downloadFinished(filePath)` _macOS_
 
-* `filePath` string
+* `filePath` String
 
 Bounces the Downloads stack if the filePath is inside the Downloads folder.
 
 #### `dock.setBadge(text)` _macOS_
 
-* `text` string
+* `text` String
 
 Sets the string to be displayed in the dock’s badging area.
 
 #### `dock.getBadge()` _macOS_
 
-Returns `string` - The badge string of the dock.
+Returns `String` - The badge string of the dock.
 
 #### `dock.hide()` _macOS_
 
@@ -62,7 +61,7 @@ Returns `Promise<void>` - Resolves when the dock icon is shown.
 
 #### `dock.isVisible()` _macOS_
 
-Returns `boolean` - Whether the dock icon is visible.
+Returns `Boolean` - Whether the dock icon is visible.
 
 #### `dock.setMenu(menu)` _macOS_
 
@@ -76,6 +75,6 @@ Returns `Menu | null` - The application's [dock menu][dock-menu].
 
 #### `dock.setIcon(image)` _macOS_
 
-* `image` ([NativeImage](native-image.md) | string)
+* `image` ([NativeImage](native-image.md) | String)
 
 Sets the `image` associated with this dock icon.

docs/api/download-item.md

@@ -2,8 +2,7 @@
 
 > Control file downloads from remote sources.
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 `DownloadItem` is an [EventEmitter][event-emitter] that represents a download item in Electron.
 It is used in `will-download` event of `Session` class, and allows users to
@@ -45,7 +44,7 @@ win.webContents.session.on('will-download', (event, item, webContents) => {
 Returns:
 
 * `event` Event
-* `state` string - Can be `progressing` or `interrupted`.
+* `state` String - Can be `progressing` or `interrupted`.
 
 Emitted when the download has been updated and is not done.
 
@@ -59,7 +58,7 @@ The `state` can be one of following:
 Returns:
 
 * `event` Event
-* `state` string - Can be `completed`, `cancelled` or `interrupted`.
+* `state` String - Can be `completed`, `cancelled` or `interrupted`.
 
 Emitted when the download is in a terminal state. This includes a completed
 download, a cancelled download (via `downloadItem.cancel()`), and interrupted
@@ -77,7 +76,7 @@ The `downloadItem` object has the following methods:
 
 #### `downloadItem.setSavePath(path)`
 
-* `path` string - Set the save file path of the download item.
+* `path` String - Set the save file path of the download item.
 
 The API is only available in session's `will-download` callback function.
 If `path` doesn't exist, Electron will try to make the directory recursively.
@@ -86,7 +85,7 @@ routine to determine the save path; this usually prompts a save dialog.
 
 #### `downloadItem.getSavePath()`
 
-Returns `string` - The save path of the download item. This will be either the path
+Returns `String` - The save path of the download item. This will be either the path
 set via `downloadItem.setSavePath(path)` or the path selected from the shown
 save dialog.
 
@@ -109,7 +108,7 @@ Pauses the download.
 
 #### `downloadItem.isPaused()`
 
-Returns `boolean` - Whether the download is paused.
+Returns `Boolean` - Whether the download is paused.
 
 #### `downloadItem.resume()`
 
@@ -119,7 +118,7 @@ Resumes the download that has been paused.
 
 #### `downloadItem.canResume()`
 
-Returns `boolean` - Whether the download can resume.
+Returns `Boolean` - Whether the download can resume.
 
 #### `downloadItem.cancel()`
 
@@ -127,19 +126,19 @@ Cancels the download operation.
 
 #### `downloadItem.getURL()`
 
-Returns `string` - The origin URL where the item is downloaded from.
+Returns `String` - The origin URL where the item is downloaded from.
 
 #### `downloadItem.getMimeType()`
 
-Returns `string` - The files mime type.
+Returns `String` - The files mime type.
 
 #### `downloadItem.hasUserGesture()`
 
-Returns `boolean` - Whether the download has user gesture.
+Returns `Boolean` - Whether the download has user gesture.
 
 #### `downloadItem.getFilename()`
 
-Returns `string` - The file name of the download item.
+Returns `String` - The file name of the download item.
 
 **Note:** The file name is not always the same as the actual one saved in local
 disk. If user changes the file name in a prompted download saving dialog, the
@@ -157,27 +156,27 @@ Returns `Integer` - The received bytes of the download item.
 
 #### `downloadItem.getContentDisposition()`
 
-Returns `string` - The Content-Disposition field from the response
+Returns `String` - The Content-Disposition field from the response
 header.
 
 #### `downloadItem.getState()`
 
-Returns `string` - The current state. Can be `progressing`, `completed`, `cancelled` or `interrupted`.
+Returns `String` - The current state. Can be `progressing`, `completed`, `cancelled` or `interrupted`.
 
 **Note:** The following methods are useful specifically to resume a
 `cancelled` item when session is restarted.
 
 #### `downloadItem.getURLChain()`
 
-Returns `string[]` - The complete URL chain of the item including any redirects.
+Returns `String[]` - The complete URL chain of the item including any redirects.
 
 #### `downloadItem.getLastModifiedTime()`
 
-Returns `string` - Last-Modified header value.
+Returns `String` - Last-Modified header value.
 
 #### `downloadItem.getETag()`
 
-Returns `string` - ETag header value.
+Returns `String` - ETag header value.
 
 #### `downloadItem.getStartTime()`
 
@@ -188,7 +187,7 @@ started.
 
 #### `downloadItem.savePath`
 
-A `string` property that determines the save file path of the download item.
+A `String` property that determines the save file path of the download item.
 
 The property is only available in session's `will-download` callback function.
 If user doesn't set the save path via the property, Electron will use the original

docs/api/environment-variables.md

@@ -118,19 +118,7 @@ debugging purposes.
 
 ### `ELECTRON_ENABLE_LOGGING`
 
-Prints Chromium's internal logging to the console.
-
-Setting this variable is the same as passing `--enable-logging`
-on the command line. For more info, see `--enable-logging` in [command-line
-switches](./command-line-switches.md#--enable-loggingfile).
-
-### `ELECTRON_LOG_FILE`
-
-Sets the file destination for Chromium's internal logging.
-
-Setting this variable is the same as passing `--log-file`
-on the command line. For more info, see `--log-file` in [command-line
-switches](./command-line-switches.md#--log-filepath).
+Prints Chrome's internal logging to the console.
 
 ### `ELECTRON_DEBUG_DRAG_REGIONS`
 
@@ -139,8 +127,7 @@ green and non-draggable regions will be colored red to aid debugging.
 
 ### `ELECTRON_DEBUG_NOTIFICATIONS`
 
-Adds extra logs to [`Notification`](./notification.md) lifecycles on macOS to aid in debugging. Extra logging will be displayed when new Notifications are created or activated. They will also be displayed when common a
-tions are taken: a notification is shown, dismissed, its button is clicked, or it is replied to.
+Adds extra logs to [`Notification`](./notification.md) lifecycles on macOS to aid in debugging. Extra logging will be displayed when new Notifications are created or activated. They will also be displayed when common actions are taken: a notification is shown, dismissed, its button is clicked, or it is replied to.
 
 Sample output:
 

docs/api/extensions.md

@@ -78,7 +78,6 @@ The following methods of `chrome.runtime` are supported:
 - `chrome.runtime.getURL`
 - `chrome.runtime.connect`
 - `chrome.runtime.sendMessage`
-- `chrome.runtime.reload`
 
 The following events of `chrome.runtime` are supported:
 
@@ -100,8 +99,6 @@ The following methods of `chrome.tabs` are supported:
 
 - `chrome.tabs.sendMessage`
 - `chrome.tabs.executeScript`
-- `chrome.tabs.update` (partial support)
-  - supported properties: `url`, `muted`.
 
 > **Note:** In Chrome, passing `-1` as a tab ID signifies the "currently active
 > tab". Since Electron has no such concept, passing `-1` as a tab ID is not

docs/api/frameless-window.md

@@ -0,0 +1,188 @@
+# Frameless Window
+
+> Open a window without toolbars, borders, or other graphical "chrome".
+
+A frameless window is a window that has no
+[chrome](https://developer.mozilla.org/en-US/docs/Glossary/Chrome), the parts of
+the window, like toolbars, that are not a part of the web page. These are
+options on the [`BrowserWindow`](browser-window.md) class.
+
+## Create a frameless window
+
+To create a frameless window, you need to set `frame` to `false` in
+[BrowserWindow](browser-window.md)'s `options`:
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow({ width: 800, height: 600, frame: false })
+win.show()
+```
+
+### Alternatives on macOS
+
+There's an alternative way to specify a chromeless window.
+Instead of setting `frame` to `false` which disables both the titlebar and window controls,
+you may want to have the title bar hidden and your content extend to the full window size,
+yet still preserve the window controls ("traffic lights") for standard window actions.
+You can do so by specifying the `titleBarStyle` option:
+
+#### `hidden`
+
+Results in a hidden title bar and a full size content window, yet the title bar still has the standard window controls (“traffic lights”) in the top left.
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow({ titleBarStyle: 'hidden' })
+win.show()
+```
+
+#### `hiddenInset`
+
+Results in a hidden title bar with an alternative look where the traffic light buttons are slightly more inset from the window edge.
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow({ titleBarStyle: 'hiddenInset' })
+win.show()
+```
+
+#### `customButtonsOnHover`
+
+Uses custom drawn close, and miniaturize buttons that display
+when hovering in the top left of the window. The fullscreen button
+is not available due to restrictions of frameless windows as they
+interface with Apple's macOS window masks. These custom buttons prevent
+issues with mouse events that occur with the standard window toolbar buttons.
+This option is only applicable for frameless windows.
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow({ titleBarStyle: 'customButtonsOnHover', frame: false })
+win.show()
+```
+
+## Transparent window
+
+By setting the `transparent` option to `true`, you can also make the frameless
+window transparent:
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow({ transparent: true, frame: false })
+win.show()
+```
+
+### Limitations
+
+* You can not click through the transparent area. We are going to introduce an
+  API to set window shape to solve this, see
+  [our issue](https://github.com/electron/electron/issues/1335) for details.
+* Transparent windows are not resizable. Setting `resizable` to `true` may make
+  a transparent window stop working on some platforms.
+* The `blur` filter only applies to the web page, so there is no way to apply
+  blur effect to the content below the window (i.e. other applications open on
+  the user's system).
+* The window will not be transparent when DevTools is opened.
+* On Windows operating systems,
+  * transparent windows will not work when DWM is
+  disabled.
+  * transparent windows can not be maximized using the Windows system menu or by double clicking the title bar. The reasoning behind this can be seen on [this pull request](https://github.com/electron/electron/pull/28207).
+* On Linux, users have to put `--enable-transparent-visuals --disable-gpu` in
+  the command line to disable GPU and allow ARGB to make transparent window,
+  this is caused by an upstream bug that [alpha channel doesn't work on some
+  NVidia drivers](https://bugs.chromium.org/p/chromium/issues/detail?id=369209) on
+  Linux.
+* On Mac, the native window shadow will not be shown on a transparent window.
+
+## Click-through window
+
+To create a click-through window, i.e. making the window ignore all mouse
+events, you can call the [win.setIgnoreMouseEvents(ignore)][ignore-mouse-events]
+API:
+
+```javascript
+const { BrowserWindow } = require('electron')
+const win = new BrowserWindow()
+win.setIgnoreMouseEvents(true)
+```
+
+### Forwarding
+
+Ignoring mouse messages makes the web page oblivious to mouse movement, meaning
+that mouse movement events will not be emitted. On Windows operating systems an
+optional parameter can be used to forward mouse move messages to the web page,
+allowing events such as `mouseleave` to be emitted:
+
+```javascript
+const { ipcRenderer } = require('electron')
+const el = document.getElementById('clickThroughElement')
+el.addEventListener('mouseenter', () => {
+  ipcRenderer.send('set-ignore-mouse-events', true, { forward: true })
+})
+el.addEventListener('mouseleave', () => {
+  ipcRenderer.send('set-ignore-mouse-events', false)
+})
+
+// Main process
+const { ipcMain } = require('electron')
+ipcMain.on('set-ignore-mouse-events', (event, ...args) => {
+  BrowserWindow.fromWebContents(event.sender).setIgnoreMouseEvents(...args)
+})
+```
+
+This makes the web page click-through when over `el`, and returns to normal
+outside it.
+
+## Draggable region
+
+By default, the frameless window is non-draggable. Apps need to specify
+`-webkit-app-region: drag` in CSS to tell Electron which regions are draggable
+(like the OS's standard titlebar), and apps can also use
+`-webkit-app-region: no-drag` to exclude the non-draggable area from the
+ draggable region. Note that only rectangular shapes are currently supported.
+
+Note: `-webkit-app-region: drag` is known to have problems while the developer tools are open. See this [GitHub issue](https://github.com/electron/electron/issues/3647) for more information including a workaround.
+
+To make the whole window draggable, you can add `-webkit-app-region: drag` as
+`body`'s style:
+
+```html
+<body style="-webkit-app-region: drag">
+</body>
+```
+
+And note that if you have made the whole window draggable, you must also mark
+buttons as non-draggable, otherwise it would be impossible for users to click on
+them:
+
+```css
+button {
+  -webkit-app-region: no-drag;
+}
+```
+
+If you're only setting a custom titlebar as draggable, you also need to make all
+buttons in titlebar non-draggable.
+
+## Text selection
+
+In a frameless window the dragging behavior may conflict with selecting text.
+For example, when you drag the titlebar you may accidentally select the text on
+the titlebar. To prevent this, you need to disable text selection within a
+draggable area like this:
+
+```css
+.titlebar {
+  -webkit-user-select: none;
+  -webkit-app-region: drag;
+}
+```
+
+## Context menu
+
+On some platforms, the draggable area will be treated as a non-client frame, so
+when you right click on it a system menu will pop up. To make the context menu
+behave correctly on all platforms you should never use a custom context menu on
+draggable areas.
+
+[ignore-mouse-events]: browser-window.md#winsetignoremouseeventsignore-options

docs/api/global-shortcut.md

@@ -47,7 +47,7 @@ The `globalShortcut` module has the following methods:
 * `accelerator` [Accelerator](accelerator.md)
 * `callback` Function
 
-Returns `boolean` - Whether or not the shortcut was registered successfully.
+Returns `Boolean` - Whether or not the shortcut was registered successfully.
 
 Registers a global shortcut of `accelerator`. The `callback` is called when
 the registered shortcut is pressed by the user.
@@ -66,7 +66,7 @@ the app has been authorized as a [trusted accessibility client](https://develope
 
 ### `globalShortcut.registerAll(accelerators, callback)`
 
-* `accelerators` string[] - an array of [Accelerator](accelerator.md)s.
+* `accelerators` String[] - an array of [Accelerator](accelerator.md)s.
 * `callback` Function
 
 Registers a global shortcut of all `accelerator` items in `accelerators`. The `callback` is called when any of the registered shortcuts are pressed by the user.
@@ -87,7 +87,7 @@ the app has been authorized as a [trusted accessibility client](https://develope
 
 * `accelerator` [Accelerator](accelerator.md)
 
-Returns `boolean` - Whether this application has registered `accelerator`.
+Returns `Boolean` - Whether this application has registered `accelerator`.
 
 When the accelerator is already taken by other applications, this call will
 still return `false`. This behavior is intended by operating systems, since they

docs/api/in-app-purchase.md

@@ -23,16 +23,16 @@ The `inAppPurchase` module has the following methods:
 
 ### `inAppPurchase.purchaseProduct(productID[, quantity])`
 
-* `productID` string - The identifiers of the product to purchase. (The identifier of `com.example.app.product1` is `product1`).
+* `productID` String - The identifiers of the product to purchase. (The identifier of `com.example.app.product1` is `product1`).
 * `quantity` Integer (optional) - The number of items the user wants to purchase.
 
-Returns `Promise<boolean>` - Returns `true` if the product is valid and added to the payment queue.
+Returns `Promise<Boolean>` - Returns `true` if the product is valid and added to the payment queue.
 
 You should listen for the `transactions-updated` event as soon as possible and certainly before you call `purchaseProduct`.
 
 ### `inAppPurchase.getProducts(productIDs)`
 
-* `productIDs` string[] - The identifiers of the products to get.
+* `productIDs` String[] - The identifiers of the products to get.
 
 Returns `Promise<Product[]>` - Resolves with an array of [`Product`](structures/product.md) objects.
 
@@ -40,7 +40,7 @@ Retrieves the product descriptions.
 
 ### `inAppPurchase.canMakePayments()`
 
-Returns `boolean` - whether a user can make a payment.
+Returns `Boolean` - whether a user can make a payment.
 
 ### `inAppPurchase.restoreCompletedTransactions()`
 
@@ -50,7 +50,7 @@ Restores finished transactions. This method can be called either to install purc
 
 ### `inAppPurchase.getReceiptURL()`
 
-Returns `string` - the path to the receipt.
+Returns `String` - the path to the receipt.
 
 ### `inAppPurchase.finishAllTransactions()`
 
@@ -58,6 +58,6 @@ Completes all pending transactions.
 
 ### `inAppPurchase.finishTransactionByDate(date)`
 
-* `date` string - The ISO formatted date of the transaction to finish.
+* `date` String - The ISO formatted date of the transaction to finish.
 
 Completes the pending transactions corresponding to the date.

docs/api/incoming-message.md

@@ -2,8 +2,7 @@
 
 > Handle responses to HTTP/HTTPS requests.
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 `IncomingMessage` implements the [Readable Stream](https://nodejs.org/api/stream.html#stream_readable_streams)
 interface and is therefore an [EventEmitter][event-emitter].
@@ -48,7 +47,7 @@ An `Integer` indicating the HTTP response status code.
 
 #### `response.statusMessage`
 
-A `string` representing the HTTP status message.
+A `String` representing the HTTP status message.
 
 #### `response.headers`
 
@@ -66,7 +65,7 @@ formatted as follows:
 
 #### `response.httpVersion`
 
-A `string` indicating the HTTP protocol version number. Typical values are '1.0'
+A `String` indicating the HTTP protocol version number. Typical values are '1.0'
 or '1.1'. Additionally `httpVersionMajor` and `httpVersionMinor` are two
 Integer-valued readable properties that return respectively the HTTP major and
 minor version numbers.
@@ -80,25 +79,3 @@ An `Integer` indicating the HTTP protocol major version number.
 An `Integer` indicating the HTTP protocol minor version number.
 
 [event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
-
-#### `response.rawHeaders`
-
-A `string[]` containing the raw HTTP response headers exactly as they were
-received. The keys and values are in the same list. It is not a list of
-tuples. So, the even-numbered offsets are key values, and the odd-numbered
-offsets are the associated values. Header names are not lowercased, and
-duplicates are not merged.
-
-```javascript
-// Prints something like:
-//
-// [ 'user-agent',
-//   'this is invalid because there can be only one',
-//   'User-Agent',
-//   'curl/7.22.0',
-//   'Host',
-//   '127.0.0.1:8000',
-//   'ACCEPT',
-//   '*/*' ]
-console.log(request.rawHeaders)
-```

docs/api/ipc-main.md

@@ -40,8 +40,6 @@ ipcMain.on('synchronous-message', (event, arg) => {
 
 ```javascript
 // In renderer process (web page).
-// NB. Electron APIs are only accessible from preload, unless contextIsolation is disabled.
-// See https://www.electronjs.org/docs/tutorial/process-model#preload-scripts for more details.
 const { ipcRenderer } = require('electron')
 console.log(ipcRenderer.sendSync('synchronous-message', 'ping')) // prints "pong"
 
@@ -57,7 +55,7 @@ The `ipcMain` module has the following method to listen for events:
 
 ### `ipcMain.on(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function
   * `event` IpcMainEvent
   * `...args` any[]
@@ -67,7 +65,7 @@ Listens to `channel`, when a new message arrives `listener` would be called with
 
 ### `ipcMain.once(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function
   * `event` IpcMainEvent
   * `...args` any[]
@@ -77,7 +75,7 @@ only the next time a message is sent to `channel`, after which it is removed.
 
 ### `ipcMain.removeListener(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function
   * `...args` any[]
 
@@ -86,13 +84,13 @@ Removes the specified `listener` from the listener array for the specified
 
 ### `ipcMain.removeAllListeners([channel])`
 
-* `channel` string (optional)
+* `channel` String (optional)
 
 Removes listeners of the specified `channel`.
 
 ### `ipcMain.handle(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function<Promise\<void> | any>
   * `event` IpcMainInvokeEvent
   * `...args` any[]
@@ -129,7 +127,7 @@ provided to the renderer process. Please refer to
 
 ### `ipcMain.handleOnce(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function<Promise\<void> | any>
   * `event` IpcMainInvokeEvent
   * `...args` any[]
@@ -139,7 +137,7 @@ Handles a single `invoke`able IPC message, then removes the listener. See
 
 ### `ipcMain.removeHandler(channel)`
 
-* `channel` string
+* `channel` String
 
 Removes any handler for `channel`, if present.
 

docs/api/ipc-renderer.md

@@ -17,7 +17,7 @@ The `ipcRenderer` module has the following method to listen for events and send
 
 ### `ipcRenderer.on(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function
   * `event` IpcRendererEvent
   * `...args` any[]
@@ -27,7 +27,7 @@ Listens to `channel`, when a new message arrives `listener` would be called with
 
 ### `ipcRenderer.once(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function
   * `event` IpcRendererEvent
   * `...args` any[]
@@ -37,7 +37,7 @@ only the next time a message is sent to `channel`, after which it is removed.
 
 ### `ipcRenderer.removeListener(channel, listener)`
 
-* `channel` string
+* `channel` String
 * `listener` Function
   * `...args` any[]
 
@@ -46,13 +46,13 @@ Removes the specified `listener` from the listener array for the specified
 
 ### `ipcRenderer.removeAllListeners(channel)`
 
-* `channel` string
+* `channel` String
 
 Removes all listeners, or those of the specified `channel`.
 
 ### `ipcRenderer.send(channel, ...args)`
 
-* `channel` string
+* `channel` String
 * `...args` any[]
 
 Send an asynchronous message to the main process via `channel`, along with
@@ -78,7 +78,7 @@ If you want to receive a single response from the main process, like the result
 
 ### `ipcRenderer.invoke(channel, ...args)`
 
-* `channel` string
+* `channel` String
 * `...args` any[]
 
 Returns `Promise<any>` - Resolves with the response from the main process.
@@ -121,7 +121,7 @@ If you do not need a response to the message, consider using [`ipcRenderer.send`
 
 ### `ipcRenderer.sendSync(channel, ...args)`
 
-* `channel` string
+* `channel` String
 * `...args` any[]
 
 Returns `any` - The value sent back by the [`ipcMain`](ipc-main.md) handler.
@@ -150,7 +150,7 @@ and replies by setting `event.returnValue`.
 
 ### `ipcRenderer.postMessage(channel, message, [transfer])`
 
-* `channel` string
+* `channel` String
 * `message` any
 * `transfer` MessagePort[] (optional)
 
@@ -180,15 +180,15 @@ documentation](https://developer.mozilla.org/en-US/docs/Web/API/MessageChannel).
 
 ### `ipcRenderer.sendTo(webContentsId, channel, ...args)`
 
-* `webContentsId` number
-* `channel` string
+* `webContentsId` Number
+* `channel` String
 * `...args` any[]
 
 Sends a message to a window with `webContentsId` via `channel`.
 
 ### `ipcRenderer.sendToHost(channel, ...args)`
 
-* `channel` string
+* `channel` String
 * `...args` any[]
 
 Like `ipcRenderer.send` but the event will be sent to the `<webview>` element in

docs/api/menu-item.md

@@ -14,40 +14,40 @@ See [`Menu`](menu.md) for examples.
     * `menuItem` MenuItem
     * `browserWindow` [BrowserWindow](browser-window.md) | undefined - This will not be defined if no window is open.
     * `event` [KeyboardEvent](structures/keyboard-event.md)
-  * `role` string (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `toggleSpellChecker`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, 'showSubstitutions', 'toggleSmartQuotes', 'toggleSmartDashes', 'toggleTextReplacement', `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `shareMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu` - Define the action of the menu item, when specified the
+  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `shareMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu` - Define the action of the menu item, when specified the
     `click` property will be ignored. See [roles](#roles).
-  * `type` string (optional) - Can be `normal`, `separator`, `submenu`, `checkbox` or
+  * `type` String (optional) - Can be `normal`, `separator`, `submenu`, `checkbox` or
     `radio`.
-  * `label` string (optional)
-  * `sublabel` string (optional)
-  * `toolTip` string (optional) _macOS_ - Hover text for this menu item.
+  * `label` String (optional)
+  * `sublabel` String (optional)
+  * `toolTip` String (optional) _macOS_ - Hover text for this menu item.
   * `accelerator` [Accelerator](accelerator.md) (optional)
-  * `icon` ([NativeImage](native-image.md) | string) (optional)
-  * `enabled` boolean (optional) - If false, the menu item will be greyed out and
+  * `icon` ([NativeImage](native-image.md) | String) (optional)
+  * `enabled` Boolean (optional) - If false, the menu item will be greyed out and
     unclickable.
-  * `acceleratorWorksWhenHidden` boolean (optional) _macOS_ - default is `true`, and when `false` will prevent the accelerator from triggering the item if the item is not visible`.
-  * `visible` boolean (optional) - If false, the menu item will be entirely hidden.
-  * `checked` boolean (optional) - Should only be specified for `checkbox` or `radio` type
+  * `acceleratorWorksWhenHidden` Boolean (optional) _macOS_ - default is `true`, and when `false` will prevent the accelerator from triggering the item if the item is not visible`.
+  * `visible` Boolean (optional) - If false, the menu item will be entirely hidden.
+  * `checked` Boolean (optional) - Should only be specified for `checkbox` or `radio` type
     menu items.
-  * `registerAccelerator` boolean (optional) _Linux_ _Windows_ - If false, the accelerator won't be registered
+  * `registerAccelerator` Boolean (optional) _Linux_ _Windows_ - If false, the accelerator won't be registered
     with the system, but it will still be displayed. Defaults to true.
   * `sharingItem` SharingItem (optional) _macOS_ - The item to share when the `role` is `shareMenu`.
   * `submenu` (MenuItemConstructorOptions[] | [Menu](menu.md)) (optional) - Should be specified
     for `submenu` type menu items. If `submenu` is specified, the `type: 'submenu'` can be omitted.
     If the value is not a [`Menu`](menu.md) then it will be automatically converted to one using
     `Menu.buildFromTemplate`.
-  * `id` string (optional) - Unique within a single menu. If defined then it can be used
+  * `id` String (optional) - Unique within a single menu. If defined then it can be used
     as a reference to this item by the position attribute.
-  * `before` string[] (optional) - Inserts this item before the item with the specified label. If
+  * `before` String[] (optional) - Inserts this item before the item with the specified label. If
     the referenced item doesn't exist the item will be inserted at the end of  the menu. Also implies
     that the menu item in question should be placed in the same “group” as the item.
-  * `after` string[] (optional) - Inserts this item after the item with the specified label. If the
+  * `after` String[] (optional) - Inserts this item after the item with the specified label. If the
     referenced item doesn't exist the item will be inserted at the end of
     the menu.
-  * `beforeGroupContaining` string[] (optional) - Provides a means for a single context menu to declare
+  * `beforeGroupContaining` String[] (optional) - Provides a means for a single context menu to declare
     the placement of their containing group before the containing group of the item
     with the specified label.
-  * `afterGroupContaining` string[] (optional) - Provides a means for a single context menu to declare
+  * `afterGroupContaining` String[] (optional) - Provides a means for a single context menu to declare
     the placement of their containing group after the containing group of the item
     with the specified label.
 
@@ -100,10 +100,6 @@ The following additional roles are available on _macOS_:
 * `hide` - Map to the `hide` action.
 * `hideOthers` - Map to the `hideOtherApplications` action.
 * `unhide` - Map to the `unhideAllApplications` action.
-* `showSubstitutions` - Map to the `orderFrontSubstitutionsPanel` action.
-* `toggleSmartQuotes` - Map to the `toggleAutomaticQuoteSubstitution` action.
-* `toggleSmartDashes` - Map to the `toggleAutomaticDashSubstitution` action.
-* `toggleTextReplacement` - Map to the `toggleAutomaticTextReplacement` action.
 * `startSpeaking` - Map to the `startSpeaking` action.
 * `stopSpeaking` - Map to the `stopSpeaking` action.
 * `front` - Map to the `arrangeInFront` action.
@@ -124,7 +120,7 @@ When specifying a `role` on macOS, `label` and `accelerator` are the only
 options that will affect the menu item. All other options will be ignored.
 Lowercase `role`, e.g. `toggledevtools`, is still supported.
 
-**Note:** The `enabled` and `visibility` properties are not available for top-level menu items in the tray on macOS.
+**Nota Bene:** The `enabled` and `visibility` properties are not available for top-level menu items in the tray on macOS.
 
 ### Instance Properties
 
@@ -132,12 +128,12 @@ The following properties are available on instances of `MenuItem`:
 
 #### `menuItem.id`
 
-A `string` indicating the item's unique id, this property can be
+A `String` indicating the item's unique id, this property can be
 dynamically changed.
 
 #### `menuItem.label`
 
-A `string` indicating the item's visible label.
+A `String` indicating the item's visible label.
 
 #### `menuItem.click`
 
@@ -155,48 +151,42 @@ item's submenu, if present.
 
 #### `menuItem.type`
 
-A `string` indicating the type of the item. Can be `normal`, `separator`, `submenu`, `checkbox` or `radio`.
+A `String` indicating the type of the item. Can be `normal`, `separator`, `submenu`, `checkbox` or `radio`.
 
 #### `menuItem.role`
 
-A `string` (optional) indicating the item's role, if set. Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `toggleSpellChecker`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `shareMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu`
+A `String` (optional) indicating the item's role, if set. Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu`
 
 #### `menuItem.accelerator`
 
-An `Accelerator` (optional) indicating the item's accelerator, if set.
-
-#### `menuItem.userAccelerator` _Readonly_ _macOS_
-
-An `Accelerator | null` indicating the item's [user-assigned accelerator](https://developer.apple.com/documentation/appkit/nsmenuitem/1514850-userkeyequivalent?language=objc) for the menu item.
-
-**Note:** This property is only initialized after the `MenuItem` has been added to a `Menu`. Either via `Menu.buildFromTemplate` or via `Menu.append()/insert()`.  Accessing before initialization will just return `null`.
+A `Accelerator` (optional) indicating the item's accelerator, if set.
 
 #### `menuItem.icon`
 
-A `NativeImage | string` (optional) indicating the
+A `NativeImage | String` (optional) indicating the
 item's icon, if set.
 
 #### `menuItem.sublabel`
 
-A `string` indicating the item's sublabel.
+A `String` indicating the item's sublabel.
 
 #### `menuItem.toolTip` _macOS_
 
-A `string` indicating the item's hover text.
+A `String` indicating the item's hover text.
 
 #### `menuItem.enabled`
 
-A `boolean` indicating whether the item is enabled, this property can be
+A `Boolean` indicating whether the item is enabled, this property can be
 dynamically changed.
 
 #### `menuItem.visible`
 
-A `boolean` indicating whether the item is visible, this property can be
+A `Boolean` indicating whether the item is visible, this property can be
 dynamically changed.
 
 #### `menuItem.checked`
 
-A `boolean` indicating whether the item is checked, this property can be
+A `Boolean` indicating whether the item is checked, this property can be
 dynamically changed.
 
 A `checkbox` menu item will toggle the `checked` property on and off when
@@ -209,7 +199,7 @@ You can add a `click` function for additional behavior.
 
 #### `menuItem.registerAccelerator`
 
-A `boolean` indicating if the accelerator should be registered with the
+A `Boolean` indicating if the accelerator should be registered with the
 system or just displayed.
 
 This property can be dynamically changed.
@@ -222,7 +212,7 @@ This property can be dynamically changed.
 
 #### `menuItem.commandId`
 
-A `number` indicating an item's sequential unique id.
+A `Number` indicating an item's sequential unique id.
 
 #### `menuItem.menu`
 

docs/api/menu.md

@@ -45,7 +45,7 @@ be dynamically modified.
 
 #### `Menu.sendActionToFirstResponder(action)` _macOS_
 
-* `action` string
+* `action` String
 
 Sends the `action` to the first responder of application. This is used for
 emulating default macOS menu behaviors. Usually you would use the
@@ -73,11 +73,11 @@ The `menu` object has the following instance methods:
 
 * `options` Object (optional)
   * `window` [BrowserWindow](browser-window.md) (optional) - Default is the focused window.
-  * `x` number (optional) - Default is the current mouse cursor position.
+  * `x` Number (optional) - Default is the current mouse cursor position.
     Must be declared if `y` is declared.
-  * `y` number (optional) - Default is the current mouse cursor position.
+  * `y` Number (optional) - Default is the current mouse cursor position.
     Must be declared if `x` is declared.
-  * `positioningItem` number (optional) _macOS_ - The index of the menu item to
+  * `positioningItem` Number (optional) _macOS_ - The index of the menu item to
     be positioned under the mouse cursor at the specified coordinates. Default
     is -1.
   * `callback` Function (optional) - Called when menu is closed.
@@ -98,7 +98,7 @@ Appends the `menuItem` to the menu.
 
 #### `menu.getMenuItemById(id)`
 
-* `id` string
+* `id` String
 
 Returns `MenuItem | null` the item with the specified `id`
 
@@ -162,7 +162,7 @@ const template = [
       { role: 'services' },
       { type: 'separator' },
       { role: 'hide' },
-      { role: 'hideOthers' },
+      { role: 'hideothers' },
       { role: 'unhide' },
       { type: 'separator' },
       { role: 'quit' }
@@ -405,4 +405,4 @@ Menu:
 ```
 
 [AboutInformationPropertyListFiles]: https://developer.apple.com/library/ios/documentation/general/Reference/InfoPlistKeyReference/Articles/AboutInformationPropertyListFiles.html
-[setMenu]: browser-window.md#winsetmenumenu-linux-windows
+[setMenu]: https://github.com/electron/electron/blob/master/docs/api/browser-window.md#winsetmenumenu-linux-windows

docs/api/message-port-main.md

@@ -16,8 +16,7 @@ channel messaging.
 
 > Port interface for channel messaging in the main process.
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 ### Instance Methods
 

docs/api/native-image.md

@@ -8,7 +8,7 @@ In Electron, for the APIs that take images, you can pass either file paths or
 `NativeImage` instances. An empty image will be used when `null` is passed.
 
 For example, when creating a tray or setting a window's icon, you can pass an
-image file path as a `string`:
+image file path as a `String`:
 
 ```javascript
 const { BrowserWindow, Tray } = require('electron')
@@ -121,14 +121,14 @@ Creates an empty `NativeImage` instance.
 
 ### `nativeImage.createThumbnailFromPath(path, maxSize)` _macOS_ _Windows_
 
-* `path` string - path to a file that we intend to construct a thumbnail out of.
+* `path` String - path to a file that we intend to construct a thumbnail out of.
 * `maxSize` [Size](structures/size.md) - the maximum width and height (positive numbers) the thumbnail returned can be. The Windows implementation will ignore `maxSize.height` and scale the height according to `maxSize.width`.
 
 Returns `Promise<NativeImage>` - fulfilled with the file's thumbnail preview image, which is a [NativeImage](native-image.md).
 
 ### `nativeImage.createFromPath(path)`
 
-* `path` string
+* `path` String
 
 Returns `NativeImage`
 
@@ -170,7 +170,7 @@ Creates a new `NativeImage` instance from `buffer`. Tries to decode as PNG or JP
 
 ### `nativeImage.createFromDataURL(dataURL)`
 
-* `dataURL` string
+* `dataURL` String
 
 Returns `NativeImage`
 
@@ -178,8 +178,8 @@ Creates a new `NativeImage` instance from `dataURL`.
 
 ### `nativeImage.createFromNamedImage(imageName[, hslShift])` _macOS_
 
-* `imageName` string
-* `hslShift` number[] (optional)
+* `imageName` String
+* `hslShift` Number[] (optional)
 
 Returns `NativeImage`
 
@@ -215,8 +215,7 @@ where `SYSTEM_IMAGE_NAME` should be replaced with any value from [this list](htt
 
 > Natively wrap images such as tray, dock, and application icons.
 
-Process: [Main](../glossary.md#main-process), [Renderer](../glossary.md#renderer-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process), [Renderer](../glossary.md#renderer-process)
 
 ### Instance Methods
 
@@ -248,7 +247,7 @@ data.
 * `options` Object (optional)
   * `scaleFactor` Double (optional) - Defaults to 1.0.
 
-Returns `string` - The data URL of the image.
+Returns `String` - The data URL of the image.
 
 #### `image.getBitmap([options])`
 
@@ -272,7 +271,7 @@ image instead of a copy, so you _must_ ensure that the associated
 
 #### `image.isEmpty()`
 
-Returns `boolean` - Whether the image is empty.
+Returns `Boolean` - Whether the image is empty.
 
 #### `image.getSize([scaleFactor])`
 
@@ -284,13 +283,13 @@ If `scaleFactor` is passed, this will return the size corresponding to the image
 
 #### `image.setTemplateImage(option)`
 
-* `option` boolean
+* `option` Boolean
 
 Marks the image as a template image.
 
 #### `image.isTemplateImage()`
 
-Returns `boolean` - Whether the image is a template image.
+Returns `Boolean` - Whether the image is a template image.
 
 #### `image.crop(rect)`
 
@@ -303,7 +302,7 @@ Returns `NativeImage` - The cropped image.
 * `options` Object
   * `width` Integer (optional) - Defaults to the image's width.
   * `height` Integer (optional) - Defaults to the image's height.
-  * `quality` string (optional) - The desired quality of the resize image.
+  * `quality` String (optional) - The desired quality of the resize image.
     Possible values are `good`, `better`, or `best`. The default is `best`.
     These values express a desired quality/speed tradeoff. They are translated
     into an algorithm-specific method that depends on the capabilities
@@ -336,7 +335,7 @@ Returns `Float[]` - An array of all scale factors corresponding to representatio
   * `height` Integer (optional) - Defaults to 0. Required if a bitmap buffer
     is specified as `buffer`.
   * `buffer` Buffer (optional) - The buffer containing the raw image data.
-  * `dataURL` string (optional) - The data URL containing either a base 64
+  * `dataURL` String (optional) - The data URL containing either a base 64
     encoded PNG or JPEG image.
 
 Add an image representation for a specific scale factor. This can be used
@@ -349,6 +348,6 @@ can be called on empty images.
 
 #### `nativeImage.isMacTemplateImage` _macOS_
 
-A `boolean` property that determines whether the image is considered a [template image](https://developer.apple.com/documentation/appkit/nsimage/1520017-template).
+A `Boolean` property that determines whether the image is considered a [template image](https://developer.apple.com/documentation/appkit/nsimage/1520017-template).
 
 Please note that this property only has an effect on macOS.

docs/api/native-theme.md

@@ -21,13 +21,13 @@ The `nativeTheme` module has the following properties:
 
 ### `nativeTheme.shouldUseDarkColors` _Readonly_
 
-A `boolean` for if the OS / Chromium currently has a dark mode enabled or is
+A `Boolean` for if the OS / Chromium currently has a dark mode enabled or is
 being instructed to show a dark-style UI.  If you want to modify this value you
 should use `themeSource` below.
 
 ### `nativeTheme.themeSource`
 
-A `string` property that can be `system`, `light` or `dark`.  It is used to override and supersede
+A `String` property that can be `system`, `light` or `dark`.  It is used to override and supersede
 the value that Chromium has chosen to use internally.
 
 Setting this property to `system` will remove the override and
@@ -60,15 +60,10 @@ Your application should then always use `shouldUseDarkColors` to determine what
 
 ### `nativeTheme.shouldUseHighContrastColors` _macOS_ _Windows_ _Readonly_
 
-A `boolean` for if the OS / Chromium currently has high-contrast mode enabled
+A `Boolean` for if the OS / Chromium currently has high-contrast mode enabled
 or is being instructed to show a high-contrast UI.
 
 ### `nativeTheme.shouldUseInvertedColorScheme` _macOS_ _Windows_ _Readonly_
 
-A `boolean` for if the OS / Chromium currently has an inverted color scheme
+A `Boolean` for if the OS / Chromium currently has an inverted color scheme
 or is being instructed to use an inverted color scheme.
-
-### `nativeTheme.inForcedColorsMode` _Windows_ _Readonly_
-
-A `boolean` indicating whether Chromium is in forced colors mode, controlled by system accessibility settings.
-Currently, Windows high contrast is the only system setting that triggers forced colors mode.

docs/api/net-log.md

@@ -24,14 +24,14 @@ of the `app` module gets emitted.
 
 ### `netLog.startLogging(path[, options])`
 
-* `path` string - File path to record network logs.
+* `path` String - File path to record network logs.
 * `options` Object (optional)
-  * `captureMode` string (optional) - What kinds of data should be captured. By
+  * `captureMode` String (optional) - What kinds of data should be captured. By
     default, only metadata about requests will be captured. Setting this to
     `includeSensitive` will include cookies and authentication data. Setting
     it to `everything` will include all bytes transferred on sockets. Can be
     `default`, `includeSensitive` or `everything`.
-  * `maxFileSize` number (optional) - When the log grows beyond this size,
+  * `maxFileSize` Number (optional) - When the log grows beyond this size,
     logging will automatically stop. Defaults to unlimited.
 
 Returns `Promise<void>` - resolves when the net log has begun recording.
@@ -48,4 +48,4 @@ Stops recording network events. If not called, net logging will automatically en
 
 ### `netLog.currentlyLogging` _Readonly_
 
-A `boolean` property that indicates whether network logs are currently being recorded.
+A `Boolean` property that indicates whether network logs are currently being recorded.

docs/api/net.md

@@ -54,7 +54,7 @@ The `net` module has the following methods:
 
 ### `net.request(options)`
 
-* `options` (ClientRequestConstructorOptions | string) - The `ClientRequest` constructor options.
+* `options` (ClientRequestConstructorOptions | String) - The `ClientRequest` constructor options.
 
 Returns [`ClientRequest`](./client-request.md)
 
@@ -65,7 +65,7 @@ requests according to the specified protocol scheme in the `options` object.
 
 ### `net.isOnline()`
 
-Returns `boolean` - Whether there is currently internet connection.
+Returns `Boolean` - Whether there is currently internet connection.
 
 A return value of `false` is a pretty strong indicator that the user
 won't be able to connect to remote sites. However, a return value of
@@ -77,7 +77,7 @@ will be successful.
 
 ### `net.online` _Readonly_
 
-A `boolean` property. Whether there is currently internet connection.
+A `Boolean` property. Whether there is currently internet connection.
 
 A return value of `false` is a pretty strong indicator that the user
 won't be able to connect to remote sites. However, a return value of

docs/api/notification.md

@@ -24,24 +24,24 @@ The `Notification` class has the following static methods:
 
 #### `Notification.isSupported()`
 
-Returns `boolean` - Whether or not desktop notifications are supported on the current system
+Returns `Boolean` - Whether or not desktop notifications are supported on the current system
 
 ### `new Notification([options])`
 
 * `options` Object (optional)
-  * `title` string (optional) - A title for the notification, which will be shown at the top of the notification window when it is shown.
-  * `subtitle` string (optional) _macOS_ - A subtitle for the notification, which will be displayed below the title.
-  * `body` string (optional) - The body text of the notification, which will be displayed below the title or subtitle.
-  * `silent` boolean (optional) - Whether or not to emit an OS notification noise when showing the notification.
-  * `icon` (string | [NativeImage](native-image.md)) (optional) - An icon to use in the notification.
-  * `hasReply` boolean (optional) _macOS_ - Whether or not to add an inline reply option to the notification.
-  * `timeoutType` string (optional) _Linux_ _Windows_ - The timeout duration of the notification. Can be 'default' or 'never'.
-  * `replyPlaceholder` string (optional) _macOS_ - The placeholder to write in the inline reply input field.
-  * `sound` string (optional) _macOS_ - The name of the sound file to play when the notification is shown.
-  * `urgency` string (optional) _Linux_ - The urgency level of the notification. Can be 'normal', 'critical', or 'low'.
+  * `title` String (optional) - A title for the notification, which will be shown at the top of the notification window when it is shown.
+  * `subtitle` String (optional) _macOS_ - A subtitle for the notification, which will be displayed below the title.
+  * `body` String (optional) - The body text of the notification, which will be displayed below the title or subtitle.
+  * `silent` Boolean (optional) - Whether or not to emit an OS notification noise when showing the notification.
+  * `icon` (String | [NativeImage](native-image.md)) (optional) - An icon to use in the notification.
+  * `hasReply` Boolean (optional) _macOS_ - Whether or not to add an inline reply option to the notification.
+  * `timeoutType` String (optional) _Linux_ _Windows_ - The timeout duration of the notification. Can be 'default' or 'never'.
+  * `replyPlaceholder` String (optional) _macOS_ - The placeholder to write in the inline reply input field.
+  * `sound` String (optional) _macOS_ - The name of the sound file to play when the notification is shown.
+  * `urgency` String (optional) _Linux_ - The urgency level of the notification. Can be 'normal', 'critical', or 'low'.
   * `actions` [NotificationAction[]](structures/notification-action.md) (optional) _macOS_ - Actions to add to the notification. Please read the available actions and limitations in the `NotificationAction` documentation.
-  * `closeButtonText` string (optional) _macOS_ - A custom title for the close button of an alert. An empty string will cause the default localized text to be used.
-  * `toastXml` string (optional) _Windows_ - A custom description of the Notification on Windows superseding all properties above. Provides full customization of design and behavior of the notification.
+  * `closeButtonText` String (optional) _macOS_ - A custom title for the close button of an alert. An empty string will cause the default localized text to be used.
+  * `toastXml` String (optional) _Windows_ - A custom description of the Notification on Windows superseding all properties above. Provides full customization of design and behavior of the notification.
 
 ### Instance Events
 
@@ -84,7 +84,7 @@ is closed.
 Returns:
 
 * `event` Event
-* `reply` string - The string the user entered into the inline reply field.
+* `reply` String - The string the user entered into the inline reply field.
 
 Emitted when the user clicks the "Reply" button on a notification with `hasReply: true`.
 
@@ -93,14 +93,14 @@ Emitted when the user clicks the "Reply" button on a notification with `hasReply
 Returns:
 
 * `event` Event
-* `index` number - The index of the action that was activated.
+* `index` Number - The index of the action that was activated.
 
 #### Event: 'failed' _Windows_
 
 Returns:
 
 * `event` Event
-* `error` string - The error encountered during execution of the `show()` method.
+* `error` String - The error encountered during execution of the `show()` method.
 
 Emitted when an error is encountered while creating and showing the native notification.
 
@@ -126,45 +126,45 @@ Dismisses the notification.
 
 #### `notification.title`
 
-A `string` property representing the title of the notification.
+A `String` property representing the title of the notification.
 
 #### `notification.subtitle`
 
-A `string` property representing the subtitle of the notification.
+A `String` property representing the subtitle of the notification.
 
 #### `notification.body`
 
-A `string` property representing the body of the notification.
+A `String` property representing the body of the notification.
 
 #### `notification.replyPlaceholder`
 
-A `string` property representing the reply placeholder of the notification.
+A `String` property representing the reply placeholder of the notification.
 
 #### `notification.sound`
 
-A `string` property representing the sound of the notification.
+A `String` property representing the sound of the notification.
 
 #### `notification.closeButtonText`
 
-A `string` property representing the close button text of the notification.
+A `String` property representing the close button text of the notification.
 
 #### `notification.silent`
 
-A `boolean` property representing whether the notification is silent.
+A `Boolean` property representing whether the notification is silent.
 
 #### `notification.hasReply`
 
-A `boolean` property representing whether the notification has a reply action.
+A `Boolean` property representing whether the notification has a reply action.
 
 #### `notification.urgency` _Linux_
 
-A `string` property representing the urgency level of the notification. Can be 'normal', 'critical', or 'low'.
+A `String` property representing the urgency level of the notification. Can be 'normal', 'critical', or 'low'.
 
 Default is 'low' - see [NotifyUrgency](https://developer.gnome.org/notification-spec/#urgency-levels) for more information.
 
 #### `notification.timeoutType` _Linux_ _Windows_
 
-A `string` property representing the type of timeout duration for the notification. Can be 'default' or 'never'.
+A `String` property representing the type of timeout duration for the notification. Can be 'default' or 'never'.
 
 If `timeoutType` is set to 'never', the notification never expires. It stays open until closed by the calling API or the user.
 
@@ -174,7 +174,7 @@ A [`NotificationAction[]`](structures/notification-action.md) property represent
 
 #### `notification.toastXml` _Windows_
 
-A `string` property representing the custom Toast XML of the notification.
+A `String` property representing the custom Toast XML of the notification.
 
 ### Playing Sounds
 

docs/api/power-monitor.md

@@ -8,11 +8,11 @@ Process: [Main](../glossary.md#main-process)
 
 The `powerMonitor` module emits the following events:
 
-### Event: 'suspend'
+### Event: 'suspend' _macOS_ _Windows_
 
 Emitted when the system is suspending.
 
-### Event: 'resume'
+### Event: 'resume' _macOS_ _Windows_
 
 Emitted when system is resuming.
 
@@ -55,7 +55,7 @@ The `powerMonitor` module has the following methods:
 
 * `idleThreshold` Integer
 
-Returns `string` - The system's current state. Can be `active`, `idle`, `locked` or `unknown`.
+Returns `String` - The system's current state. Can be `active`, `idle`, `locked` or `unknown`.
 
 Calculate the system idle state. `idleThreshold` is the amount of time (in seconds)
 before considered idle.  `locked` is available on supported systems only.
@@ -68,7 +68,7 @@ Calculate system idle time in seconds.
 
 ### `powerMonitor.isOnBatteryPower()`
 
-Returns `boolean` - Whether the system is on battery power.
+Returns `Boolean` - Whether the system is on battery power.
 
 To monitor for changes in this property, use the `on-battery` and `on-ac`
 events.
@@ -77,6 +77,6 @@ events.
 
 ### `powerMonitor.onBatteryPower`
 
-A `boolean` property. True if the system is on battery power.
+A `Boolean` property. True if the system is on battery power.
 
 See [`powerMonitor.isOnBatteryPower()`](#powermonitorisonbatterypower).

docs/api/power-save-blocker.md

@@ -21,7 +21,7 @@ The `powerSaveBlocker` module has the following methods:
 
 ### `powerSaveBlocker.start(type)`
 
-* `type` string - Power save blocker type.
+* `type` String - Power save blocker type.
   * `prevent-app-suspension` - Prevent the application from being suspended.
     Keeps system active but allows screen to be turned off. Example use cases:
     downloading a file or playing audio.
@@ -53,4 +53,4 @@ Stops the specified power save blocker.
 
 * `id` Integer - The power save blocker id returned by `powerSaveBlocker.start`.
 
-Returns `boolean` - Whether the corresponding `powerSaveBlocker` has started.
+Returns `Boolean` - Whether the corresponding `powerSaveBlocker` has started.

docs/api/process.md

@@ -49,66 +49,66 @@ beginning to load the web page or the main script.
 
 ### `process.defaultApp` _Readonly_
 
-A `boolean`. When app is started by being passed as parameter to the default app, this
+A `Boolean`. When app is started by being passed as parameter to the default app, this
 property is `true` in the main process, otherwise it is `undefined`.
 
 ### `process.isMainFrame` _Readonly_
 
-A `boolean`, `true` when the current renderer context is the "main" renderer
+A `Boolean`, `true` when the current renderer context is the "main" renderer
 frame. If you want the ID of the current frame you should use `webFrame.routingId`.
 
 ### `process.mas` _Readonly_
 
-A `boolean`. For Mac App Store build, this property is `true`, for other builds it is
+A `Boolean`. For Mac App Store build, this property is `true`, for other builds it is
 `undefined`.
 
 ### `process.noAsar`
 
-A `boolean` that controls ASAR support inside your application. Setting this to `true`
+A `Boolean` that controls ASAR support inside your application. Setting this to `true`
 will disable the support for `asar` archives in Node's built-in modules.
 
 ### `process.noDeprecation`
 
-A `boolean` that controls whether or not deprecation warnings are printed to `stderr`.
+A `Boolean` that controls whether or not deprecation warnings are printed to `stderr`.
 Setting this to `true` will silence deprecation warnings. This property is used
 instead of the `--no-deprecation` command line flag.
 
 ### `process.resourcesPath` _Readonly_
 
-A `string` representing the path to the resources directory.
+A `String` representing the path to the resources directory.
 
 ### `process.sandboxed` _Readonly_
 
-A `boolean`. When the renderer process is sandboxed, this property is `true`,
+A `Boolean`. When the renderer process is sandboxed, this property is `true`,
 otherwise it is `undefined`.
 
 ### `process.contextIsolated` _Readonly_
 
-A `boolean` that indicates whether the current renderer context has `contextIsolation` enabled.
+A `Boolean` that indicates whether the current renderer context has `contextIsolation` enabled.
 It is `undefined` in the main process.
 
 ### `process.throwDeprecation`
 
-A `boolean` that controls whether or not deprecation warnings will be thrown as
+A `Boolean` that controls whether or not deprecation warnings will be thrown as
 exceptions. Setting this to `true` will throw errors for deprecations. This
 property is used instead of the `--throw-deprecation` command line flag.
 
 ### `process.traceDeprecation`
 
-A `boolean` that controls whether or not deprecations printed to `stderr` include
+A `Boolean` that controls whether or not deprecations printed to `stderr` include
  their stack trace. Setting this to `true` will print stack traces for deprecations.
  This property is instead of the `--trace-deprecation` command line flag.
 
 ### `process.traceProcessWarnings`
 
-A `boolean` that controls whether or not process warnings printed to `stderr` include
+A `Boolean` that controls whether or not process warnings printed to `stderr` include
  their stack trace. Setting this to `true` will print stack traces for process warnings
  (including deprecations). This property is instead of the `--trace-warnings` command
  line flag.
 
 ### `process.type` _Readonly_
 
-A `string` representing the current process's type, can be:
+A `String` representing the current process's type, can be:
 
 * `browser` - The main process
 * `renderer` - A renderer process
@@ -116,20 +116,20 @@ A `string` representing the current process's type, can be:
 
 ### `process.versions.chrome` _Readonly_
 
-A `string` representing Chrome's version string.
+A `String` representing Chrome's version string.
 
 ### `process.versions.electron` _Readonly_
 
-A `string` representing Electron's version string.
+A `String` representing Electron's version string.
 
 ### `process.windowsStore` _Readonly_
 
-A `boolean`. If the app is running as a Windows Store app (appx), this property is `true`,
+A `Boolean`. If the app is running as a Windows Store app (appx), this property is `true`,
 for otherwise it is `undefined`.
 
 ### `process.contextId` _Readonly_
 
-A `string` (optional) representing a globally unique ID of the current JavaScript context.
+A `String` (optional) representing a globally unique ID of the current JavaScript context.
 Each frame has its own JavaScript context. When contextIsolation is enabled, the isolated
 world also has a separate JavaScript context.
 This property is only available in the renderer process.
@@ -144,7 +144,7 @@ Causes the main thread of the current process crash.
 
 ### `process.getCreationTime()`
 
-Returns `number | null` - The number of milliseconds since epoch, or `null` if the information is unavailable
+Returns `Number | null` - The number of milliseconds since epoch, or `null` if the information is unavailable
 
 Indicates the creation time of the application.
 The time is represented as number of milliseconds since epoch. It returns null if it is unable to get the process creation time.
@@ -169,7 +169,7 @@ Returns `Object`:
 * `heapSizeLimit` Integer
 * `mallocedMemory` Integer
 * `peakMallocedMemory` Integer
-* `doesZapGarbage` boolean
+* `doesZapGarbage` Boolean
 
 Returns an object with V8 heap statistics. Note that all statistics are reported in Kilobytes.
 
@@ -178,6 +178,7 @@ Returns an object with V8 heap statistics. Note that all statistics are reported
 Returns `Object`:
 
 * `allocated` Integer - Size of all allocated objects in Kilobytes.
+* `marked` Integer - Size of all marked objects in Kilobytes.
 * `total` Integer - Total allocated space in Kilobytes.
 
 Returns an object with Blink memory information.
@@ -216,7 +217,7 @@ that all statistics are reported in Kilobytes.
 
 ### `process.getSystemVersion()`
 
-Returns `string` - The version of the host operating system.
+Returns `String` - The version of the host operating system.
 
 Example:
 
@@ -232,9 +233,9 @@ console.log(version)
 
 ### `process.takeHeapSnapshot(filePath)`
 
-* `filePath` string - Path to the output file.
+* `filePath` String - Path to the output file.
 
-Returns `boolean` - Indicates whether the snapshot has been created successfully.
+Returns `Boolean` - Indicates whether the snapshot has been created successfully.
 
 Takes a V8 heap snapshot and saves it to `filePath`.
 

docs/api/protocol.md

@@ -110,13 +110,13 @@ expect streaming responses.
 
 ### `protocol.registerFileProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
-    * `response` (string | [ProtocolResponse](structures/protocol-response.md))
+    * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully registered
+Returns `Boolean` - Whether the protocol was successfully registered
 
 Registers a protocol of `scheme` that will send a file as the response. The
 `handler` will be called with `request` and `callback` where `request` is
@@ -131,13 +131,13 @@ from protocols that follow the "generic URI syntax" like `file:`.
 
 ### `protocol.registerBufferProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (Buffer | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully registered
+Returns `Boolean` - Whether the protocol was successfully registered
 
 Registers a protocol of `scheme` that will send a `Buffer` as a response.
 
@@ -155,29 +155,29 @@ protocol.registerBufferProtocol('atom', (request, callback) => {
 
 ### `protocol.registerStringProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
-    * `response` (string | [ProtocolResponse](structures/protocol-response.md))
+    * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully registered
+Returns `Boolean` - Whether the protocol was successfully registered
 
-Registers a protocol of `scheme` that will send a `string` as a response.
+Registers a protocol of `scheme` that will send a `String` as a response.
 
 The usage is the same with `registerFileProtocol`, except that the `callback`
-should be called with either a `string` or an object that has the `data`
+should be called with either a `String` or an object that has the `data`
 property.
 
 ### `protocol.registerHttpProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` ProtocolResponse
 
-Returns `boolean` - Whether the protocol was successfully registered
+Returns `Boolean` - Whether the protocol was successfully registered
 
 Registers a protocol of `scheme` that will send an HTTP request as a response.
 
@@ -186,13 +186,13 @@ should be called with an object that has the `url` property.
 
 ### `protocol.registerStreamProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (ReadableStream | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully registered
+Returns `Boolean` - Whether the protocol was successfully registered
 
 Registers a protocol of `scheme` that will send a stream as a response.
 
@@ -235,95 +235,95 @@ protocol.registerStreamProtocol('atom', (request, callback) => {
 
 ### `protocol.unregisterProtocol(scheme)`
 
-* `scheme` string
+* `scheme` String
 
-Returns `boolean` - Whether the protocol was successfully unregistered
+Returns `Boolean` - Whether the protocol was successfully unregistered
 
 Unregisters the custom protocol of `scheme`.
 
 ### `protocol.isProtocolRegistered(scheme)`
 
-* `scheme` string
+* `scheme` String
 
-Returns `boolean` - Whether `scheme` is already registered.
+Returns `Boolean` - Whether `scheme` is already registered.
 
 ### `protocol.interceptFileProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
-    * `response` (string | [ProtocolResponse](structures/protocol-response.md))
+    * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully intercepted
+Returns `Boolean` - Whether the protocol was successfully intercepted
 
 Intercepts `scheme` protocol and uses `handler` as the protocol's new handler
 which sends a file as a response.
 
 ### `protocol.interceptStringProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
-    * `response` (string | [ProtocolResponse](structures/protocol-response.md))
+    * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully intercepted
+Returns `Boolean` - Whether the protocol was successfully intercepted
 
 Intercepts `scheme` protocol and uses `handler` as the protocol's new handler
-which sends a `string` as a response.
+which sends a `String` as a response.
 
 ### `protocol.interceptBufferProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (Buffer | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully intercepted
+Returns `Boolean` - Whether the protocol was successfully intercepted
 
 Intercepts `scheme` protocol and uses `handler` as the protocol's new handler
 which sends a `Buffer` as a response.
 
 ### `protocol.interceptHttpProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` [ProtocolResponse](structures/protocol-response.md)
 
-Returns `boolean` - Whether the protocol was successfully intercepted
+Returns `Boolean` - Whether the protocol was successfully intercepted
 
 Intercepts `scheme` protocol and uses `handler` as the protocol's new handler
 which sends a new HTTP request as a response.
 
 ### `protocol.interceptStreamProtocol(scheme, handler)`
 
-* `scheme` string
+* `scheme` String
 * `handler` Function
   * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (ReadableStream | [ProtocolResponse](structures/protocol-response.md))
 
-Returns `boolean` - Whether the protocol was successfully intercepted
+Returns `Boolean` - Whether the protocol was successfully intercepted
 
 Same as `protocol.registerStreamProtocol`, except that it replaces an existing
 protocol handler.
 
 ### `protocol.uninterceptProtocol(scheme)`
 
-* `scheme` string
+* `scheme` String
 
-Returns `boolean` - Whether the protocol was successfully unintercepted
+Returns `Boolean` - Whether the protocol was successfully unintercepted
 
 Remove the interceptor installed for `scheme` and restore its original handler.
 
 ### `protocol.isProtocolIntercepted(scheme)`
 
-* `scheme` string
+* `scheme` String
 
-Returns `boolean` - Whether `scheme` is already intercepted.
+Returns `Boolean` - Whether `scheme` is already intercepted.
 
 [file-system-api]: https://developer.mozilla.org/en-US/docs/Web/API/LocalFileSystem

docs/api/remote.md

@@ -0,0 +1,217 @@
+# remote
+
+> Use main process modules from the renderer process.
+
+Process: [Renderer](../glossary.md#renderer-process)
+
+> ⚠️ WARNING ⚠️
+> The `remote` module is [deprecated](https://github.com/electron/electron/issues/21408).
+> Instead of `remote`, use [`ipcRenderer`](ipc-renderer.md) and
+> [`ipcMain`](ipc-main.md).
+>
+> Read more about why the `remote` module is deprecated [here](https://medium.com/@nornagon/electrons-remote-module-considered-harmful-70d69500f31).
+>
+> If you still want to use `remote` despite the performance and security
+> concerns, see [@electron/remote](https://github.com/electron/remote).
+
+The `remote` module provides a simple way to do inter-process communication
+(IPC) between the renderer process (web page) and the main process.
+
+In Electron, GUI-related modules (such as `dialog`, `menu` etc.) are only
+available in the main process, not in the renderer process. In order to use them
+from the renderer process, the `ipc` module is necessary to send inter-process
+messages to the main process. With the `remote` module, you can invoke methods
+of the main process object without explicitly sending inter-process messages,
+similar to Java's [RMI][rmi]. An example of creating a browser window from a
+renderer process:
+
+```javascript
+const { BrowserWindow } = require('electron').remote
+const win = new BrowserWindow({ width: 800, height: 600 })
+win.loadURL('https://github.com')
+```
+
+**Note:** For the reverse (access the renderer process from the main process),
+you can use [webContents.executeJavaScript](web-contents.md#contentsexecutejavascriptcode-usergesture).
+
+**Note:** The remote module can be disabled for security reasons in the following contexts:
+
+* [`BrowserWindow`](browser-window.md) - by setting the `enableRemoteModule` option to `false`.
+* [`<webview>`](webview-tag.md) - by setting the `enableremotemodule` attribute to `false`.
+
+## Remote Objects
+
+Each object (including functions) returned by the `remote` module represents an
+object in the main process (we call it a remote object or remote function).
+When you invoke methods of a remote object, call a remote function, or create
+a new object with the remote constructor (function), you are actually sending
+synchronous inter-process messages.
+
+In the example above, both [`BrowserWindow`](browser-window.md) and `win` were remote objects and
+`new BrowserWindow` didn't create a `BrowserWindow` object in the renderer
+process. Instead, it created a `BrowserWindow` object in the main process and
+returned the corresponding remote object in the renderer process, namely the
+`win` object.
+
+**Note:** Only [enumerable properties][enumerable-properties] which are present
+when the remote object is first referenced are accessible via remote.
+
+**Note:** Arrays and Buffers are copied over IPC when accessed via the `remote`
+module. Modifying them in the renderer process does not modify them in the main
+process and vice versa.
+
+## Lifetime of Remote Objects
+
+Electron makes sure that as long as the remote object in the renderer process
+lives (in other words, has not been garbage collected), the corresponding object
+in the main process will not be released. When the remote object has been
+garbage collected, the corresponding object in the main process will be
+dereferenced.
+
+If the remote object is leaked in the renderer process (e.g. stored in a map but
+never freed), the corresponding object in the main process will also be leaked,
+so you should be very careful not to leak remote objects.
+
+Primary value types like strings and numbers, however, are sent by copy.
+
+## Passing callbacks to the main process
+
+Code in the main process can accept callbacks from the renderer - for instance
+the `remote` module - but you should be extremely careful when using this
+feature.
+
+First, in order to avoid deadlocks, the callbacks passed to the main process
+are called asynchronously. You should not expect the main process to
+get the return value of the passed callbacks.
+
+For instance you can't use a function from the renderer process in an
+`Array.map` called in the main process:
+
+```javascript
+// main process mapNumbers.js
+exports.withRendererCallback = (mapper) => {
+  return [1, 2, 3].map(mapper)
+}
+
+exports.withLocalCallback = () => {
+  return [1, 2, 3].map(x => x + 1)
+}
+```
+
+```javascript
+// renderer process
+const mapNumbers = require('electron').remote.require('./mapNumbers')
+const withRendererCb = mapNumbers.withRendererCallback(x => x + 1)
+const withLocalCb = mapNumbers.withLocalCallback()
+
+console.log(withRendererCb, withLocalCb)
+// [undefined, undefined, undefined], [2, 3, 4]
+```
+
+As you can see, the renderer callback's synchronous return value was not as
+expected, and didn't match the return value of an identical callback that lives
+in the main process.
+
+Second, the callbacks passed to the main process will persist until the
+main process garbage-collects them.
+
+For example, the following code seems innocent at first glance. It installs a
+callback for the `close` event on a remote object:
+
+```javascript
+require('electron').remote.getCurrentWindow().on('close', () => {
+  // window was closed...
+})
+```
+
+But remember the callback is referenced by the main process until you
+explicitly uninstall it. If you do not, each time you reload your window the
+callback will be installed again, leaking one callback for each restart.
+
+To make things worse, since the context of previously installed callbacks has
+been released, exceptions will be raised in the main process when the `close`
+event is emitted.
+
+To avoid this problem, ensure you clean up any references to renderer callbacks
+passed to the main process. This involves cleaning up event handlers, or
+ensuring the main process is explicitly told to dereference callbacks that came
+from a renderer process that is exiting.
+
+## Accessing built-in modules in the main process
+
+The built-in modules in the main process are added as getters in the `remote`
+module, so you can use them directly like the `electron` module.
+
+```javascript
+const app = require('electron').remote.app
+console.log(app)
+```
+
+## Methods
+
+The `remote` module has the following methods:
+
+### `remote.getCurrentWindow()`
+
+Returns [`BrowserWindow`](browser-window.md) - The window to which this web page
+belongs.
+
+**Note:** Do not use `removeAllListeners` on [`BrowserWindow`](browser-window.md).
+Use of this can remove all [`blur`](https://developer.mozilla.org/en-US/docs/Web/Events/blur)
+listeners, disable click events on touch bar buttons, and other unintended
+consequences.
+
+### `remote.getCurrentWebContents()`
+
+Returns [`WebContents`](web-contents.md) - The web contents of this web page.
+
+### `remote.getGlobal(name)`
+
+* `name` String
+
+Returns `any` - The global variable of `name` (e.g. `global[name]`) in the main
+process.
+
+## Properties
+
+### `remote.require`
+
+A `NodeJS.Require` function equivalent to `require(module)` in the main process.
+Modules specified by their relative path will resolve relative to the entrypoint
+of the main process.
+
+e.g.
+
+```sh
+project/
+├── main
+│   ├── foo.js
+│   └── index.js
+├── package.json
+└── renderer
+    └── index.js
+```
+
+```js
+// main process: main/index.js
+const { app } = require('electron')
+app.whenReady().then(() => { /* ... */ })
+```
+
+```js
+// some relative module: main/foo.js
+module.exports = 'bar'
+```
+
+```js
+// renderer process: renderer/index.js
+const foo = require('electron').remote.require('./foo') // bar
+```
+
+### `remote.process` _Readonly_
+
+A `NodeJS.Process` object.  The `process` object in the main process. This is the same as
+`remote.getGlobal('process')` but is cached.
+
+[rmi]: https://en.wikipedia.org/wiki/Java_remote_method_invocation
+[enumerable-properties]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Enumerability_and_ownership_of_properties

docs/api/safe-storage.md

@@ -1,40 +0,0 @@
-# safeStorage
-
-> Allows access to simple encryption and decryption of strings for storage on the local machine.
-
-Process: [Main](../glossary.md#main-process)
-
-This module protects data stored on disk from being accessed by other applications or users with full disk access.
-
-Note that on Mac, access to the system Keychain is required and
-these calls can block the current thread to collect user input.
-The same is true for Linux, if a password management tool is available.
-
-## Methods
-
-The `safeStorage` module has the following methods:
-
-### `safeStorage.isEncryptionAvailable()`
-
-Returns `boolean` - Whether encryption is available.
-
-On Linux, returns true if the secret key is
-available. On MacOS, returns true if Keychain is available.
-On Windows, returns true with no other preconditions.
-
-### `safeStorage.encryptString(plainText)`
-
-* `plainText` string
-
-Returns `Buffer` -  An array of bytes representing the encrypted string.
-
-This function will throw an error if encryption fails.
-
-### `safeStorage.decryptString(encrypted)`
-
-* `encrypted` Buffer
-
-Returns `string` - the decrypted string. Decrypts the encrypted buffer
-obtained  with `safeStorage.encryptString` back into a string.
-
-This function will throw an error if decryption fails.

docs/api/sandbox-option.md

@@ -0,0 +1,182 @@
+# `sandbox` Option
+
+> Create a browser window with a sandboxed renderer. With this
+option enabled, the renderer must communicate via IPC to the main process in order to access node APIs.
+
+One of the key security features of Chromium is that all blink rendering/JavaScript
+code is executed within a sandbox. This sandbox uses OS-specific features to ensure
+that exploits in the renderer process cannot harm the system.
+
+In other words, when the sandbox is enabled, the renderers can only make changes
+to the system by delegating tasks to the main process via IPC.
+[Here's](https://www.chromium.org/developers/design-documents/sandbox) more
+information about the sandbox.
+
+Since a major feature in Electron is the ability to run Node.js in the
+renderer process (making it easier to develop desktop applications using web
+technologies), the sandbox is disabled by electron. This is because
+most Node.js APIs require system access. `require()` for example, is not
+possible without file system permissions, which are not available in a sandboxed
+environment.
+
+Usually this is not a problem for desktop applications since the code is always
+trusted, but it makes Electron less secure than Chromium for displaying
+untrusted web content. For applications that require more security, the
+`sandbox` flag will force Electron to spawn a classic Chromium renderer that is
+compatible with the sandbox.
+
+A sandboxed renderer doesn't have a Node.js environment running and doesn't
+expose Node.js JavaScript APIs to client code. The only exception is the preload script,
+which has access to a subset of the Electron renderer API.
+
+Another difference is that sandboxed renderers don't modify any of the default
+JavaScript APIs. Consequently, some APIs such as `window.open` will work as they
+do in Chromium (i.e. they do not return a [`BrowserWindowProxy`](browser-window-proxy.md)).
+
+## Example
+
+To create a sandboxed window, pass `sandbox: true` to `webPreferences`:
+
+```js
+let win
+app.whenReady().then(() => {
+  win = new BrowserWindow({
+    webPreferences: {
+      sandbox: true
+    }
+  })
+  win.loadURL('http://google.com')
+})
+```
+
+In the above code the [`BrowserWindow`](browser-window.md) that was created has Node.js disabled and can communicate
+only via IPC. The use of this option stops Electron from creating a Node.js runtime in the renderer. Also,
+within this new window `window.open` follows the native behavior (by default Electron creates a [`BrowserWindow`](browser-window.md)
+and returns a proxy to this via `window.open`).
+
+[`app.enableSandbox`](app.md#appenablesandbox) can be used to force `sandbox: true` for all `BrowserWindow` instances.
+
+```js
+let win
+app.enableSandbox()
+app.whenReady().then(() => {
+  // no need to pass `sandbox: true` since `app.enableSandbox()` was called.
+  win = new BrowserWindow()
+  win.loadURL('http://google.com')
+})
+```
+
+## Preload
+
+An app can make customizations to sandboxed renderers using a preload script.
+Here's an example:
+
+```js
+let win
+app.whenReady().then(() => {
+  win = new BrowserWindow({
+    webPreferences: {
+      sandbox: true,
+      preload: path.join(app.getAppPath(), 'preload.js')
+    }
+  })
+  win.loadURL('http://google.com')
+})
+```
+
+and preload.js:
+
+```js
+// This file is loaded whenever a javascript context is created. It runs in a
+// private scope that can access a subset of Electron renderer APIs. Without
+// contextIsolation enabled, it's possible to accidentally leak privileged
+// globals like ipcRenderer to web content.
+const { ipcRenderer } = require('electron')
+
+const defaultWindowOpen = window.open
+
+window.open = function customWindowOpen (url, ...args) {
+  ipcRenderer.send('report-window-open', location.origin, url, args)
+  return defaultWindowOpen(url + '?from_electron=1', ...args)
+}
+```
+
+Important things to notice in the preload script:
+
+- Even though the sandboxed renderer doesn't have Node.js running, it still has
+  access to a limited node-like environment: `Buffer`, `process`, `setImmediate`,
+  `clearImmediate` and `require` are available.
+- The preload script must be contained in a single script, but it is possible to have
+  complex preload code composed with multiple modules by using a tool like
+  webpack or browserify. An example of using browserify is below.
+
+To create a browserify bundle and use it as a preload script, something like
+the following should be used:
+
+```sh
+  browserify preload/index.js \
+    -x electron \
+    --insert-global-vars=__filename,__dirname -o preload.js
+```
+
+The `-x` flag should be used with any required module that is already exposed in
+the preload scope, and tells browserify to use the enclosing `require` function
+for it. `--insert-global-vars` will ensure that `process`, `Buffer` and
+`setImmediate` are also taken from the enclosing scope(normally browserify
+injects code for those).
+
+Currently the `require` function provided in the preload scope exposes the
+following modules:
+
+- `electron`
+  - `crashReporter`
+  - `desktopCapturer`
+  - `ipcRenderer`
+  - `nativeImage`
+  - `webFrame`
+- `events`
+- `timers`
+- `url`
+
+More may be added as needed to expose more Electron APIs in the sandbox.
+
+## Rendering untrusted content
+
+Rendering untrusted content in Electron is still somewhat uncharted territory,
+though some apps are finding success (e.g. Beaker Browser). Our goal is to get
+as close to Chrome as we can in terms of the security of sandboxed content, but
+ultimately we will always be behind due to a few fundamental issues:
+
+1. We do not have the dedicated resources or expertise that Chromium has to
+   apply to the security of its product. We do our best to make use of what we
+   have, to inherit everything we can from Chromium, and to respond quickly to
+   security issues, but Electron cannot be as secure as Chromium without the
+   resources that Chromium is able to dedicate.
+2. Some security features in Chrome (such as Safe Browsing and Certificate
+   Transparency) require a centralized authority and dedicated servers, both of
+   which run counter to the goals of the Electron project. As such, we disable
+   those features in Electron, at the cost of the associated security they
+   would otherwise bring.
+3. There is only one Chromium, whereas there are many thousands of apps built
+   on Electron, all of which behave slightly differently. Accounting for those
+   differences can yield a huge possibility space, and make it challenging to
+   ensure the security of the platform in unusual use cases.
+4. We can't push security updates to users directly, so we rely on app vendors
+   to upgrade the version of Electron underlying their app in order for
+   security updates to reach users.
+
+Here are some things to consider before rendering untrusted content:
+
+- A preload script can accidentally leak privileged APIs to untrusted code,
+  unless [`contextIsolation`](../tutorial/security.md#3-enable-context-isolation-for-remote-content)
+  is also enabled.
+- Some bug in the V8 engine may allow malicious code to access the renderer
+  preload APIs, effectively granting full access to the system through the
+  `remote` module. Therefore, it is highly recommended to [disable the `remote`
+  module](../tutorial/security.md#15-disable-the-remote-module).
+  If disabling is not feasible, you should selectively [filter the `remote`
+  module](../tutorial/security.md#16-filter-the-remote-module).
+- While we make our best effort to backport Chromium security fixes to older
+  versions of Electron, we do not make a guarantee that every fix will be
+  backported. Your best chance at staying secure is to be on the latest stable
+  version of Electron.

docs/api/screen.md

@@ -76,7 +76,7 @@ Returns:
 
 * `event` Event
 * `display` [Display](structures/display.md)
-* `changedMetrics` string[]
+* `changedMetrics` String[]
 
 Emitted when one or more metrics change in a `display`. The `changedMetrics` is
 an array of strings that describe the changes. Possible changes are `bounds`,

docs/api/service-workers.md

@@ -2,8 +2,7 @@
 
 > Query and receive events from a sessions active service workers.
 
-Process: [Main](../glossary.md#main-process)<br />
-_This class is not exported from the `'electron'` module. It is only available as a return value of other methods in the Electron API._
+Process: [Main](../glossary.md#main-process)
 
 Instances of the `ServiceWorkers` class are accessed by using `serviceWorkers` property of
 a `Session`.
@@ -37,12 +36,12 @@ Returns:
 
 * `event` Event
 * `messageDetails` Object - Information about the console message
-  * `message` string - The actual console message
-  * `versionId` number - The version ID of the service worker that sent the log message
-  * `source` string - The type of source for this message.  Can be `javascript`, `xml`, `network`, `console-api`, `storage`, `rendering`, `security`, `deprecation`, `worker`, `violation`, `intervention`, `recommendation` or `other`.
-  * `level` number - The log level, from 0 to 3. In order it matches `verbose`, `info`, `warning` and `error`.
-  * `sourceUrl` string - The URL the message came from
-  * `lineNumber` number - The line number of the source that triggered this console message
+  * `message` String - The actual console message
+  * `versionId` Number - The version ID of the service worker that sent the log message
+  * `source` String - The type of source for this message.  Can be `javascript`, `xml`, `network`, `console-api`, `storage`, `app-cache`, `rendering`, `security`, `deprecation`, `worker`, `violation`, `intervention`, `recommendation` or `other`.
+  * `level` Number - The log level, from 0 to 3. In order it matches `verbose`, `info`, `warning` and `error`.
+  * `sourceUrl` String - The URL the message came from
+  * `lineNumber` Number - The line number of the source that triggered this console message
 
 Emitted when a service worker logs something to the console.
 
@@ -52,7 +51,7 @@ Returns:
 
 * `event` Event
 * `details` Object - Information about the registered service worker
-  * `scope` string - The base URL that a service worker is registered for
+  * `scope` String - The base URL that a service worker is registered for
 
 Emitted when a service worker has been registered. Can occur after a call to [`navigator.serviceWorker.register('/sw.js')`](https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register) successfully resolves or when a Chrome extension is loaded.
 
@@ -62,11 +61,11 @@ The following methods are available on instances of `ServiceWorkers`:
 
 #### `serviceWorkers.getAllRunning()`
 
-Returns `Record<number, ServiceWorkerInfo>` - A [ServiceWorkerInfo](structures/service-worker-info.md) object where the keys are the service worker version ID and the values are the information about that service worker.
+Returns `Record<Number, ServiceWorkerInfo>` - A [ServiceWorkerInfo](structures/service-worker-info.md) object where the keys are the service worker version ID and the values are the information about that service worker.
 
 #### `serviceWorkers.getFromVersionID(versionId)`
 
-* `versionId` number
+* `versionId` Number
 
 Returns [`ServiceWorkerInfo`](structures/service-worker-info.md) - Information about this service worker