Bump v12.0.2

fix: escape URL passed to shell.openExternal on windows (#28341 )
Co-authored-by: Samuel Attard <sattard@slack-corp.com>
2026-02-19 03:14:51 -05:00 · 2021-03-23 12:19:10 -07:00 · 2021-03-23 05:15:40 -07:00 · 2021-03-23 03:00:36 -07:00 · 2021-03-22 12:37:13 -07:00 · 2021-03-22 11:02:51 +09:00
1697 changed files with 55731 additions and 56637 deletions
--- a/.circleci/.gitignore
+++ b/.circleci/.gitignore
@@ -1 +0,0 @@
-config-staging
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
--- a/.circleci/config/base.yml
+++ b/.circleci/config/base.yml
--- a/.circleci/config/build.js
+++ b/.circleci/config/build.js
@@ -1,34 +0,0 @@
-const cp = require('child_process');
-const fs = require('fs-extra');
-const path = require('path');
-const yaml = require('js-yaml');
-
-const STAGING_DIR = path.resolve(__dirname, '..', 'config-staging');
-
-function copyAndExpand(dir = './') {
-    const absDir = path.resolve(__dirname, dir);
-    const targetDir = path.resolve(STAGING_DIR, dir);
-
-    if (!fs.existsSync(targetDir)) {
-        fs.mkdirSync(targetDir);
-    }
-
-    for (const file of fs.readdirSync(absDir)) {
-        if (!file.endsWith('.yml')) {
-            if (fs.statSync(path.resolve(absDir, file)).isDirectory()) {
-                copyAndExpand(path.join(dir, file));
-            }
-            continue;
-        }
-
-        fs.writeFileSync(path.resolve(targetDir, file), yaml.dump(yaml.load(fs.readFileSync(path.resolve(absDir, file), 'utf8')), {
-            noRefs: true,
-        }));
-    }
-}
-
-if (fs.pathExists(STAGING_DIR)) fs.removeSync(STAGING_DIR);
-copyAndExpand();
-
-const output = cp.spawnSync(process.env.CIRCLECI_BINARY || 'circleci', ['config', 'pack', STAGING_DIR]);
-fs.writeFileSync(path.resolve(STAGING_DIR, 'built.yml'), output.stdout.toString());
--- a/.circleci/config/jobs/lint.yml
+++ b/.circleci/config/jobs/lint.yml
@@ -1,51 +0,0 @@
-executor:
-  name: linux-docker
-  size: medium
-steps:
-  - checkout:
-      path: src/electron
-  - run:
-      name: Setup third_party Depot Tools
-      command: |
-        # "depot_tools" has to be checkout into "//third_party/depot_tools" so pylint.py can a "pylintrc" file.
-        git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git src/third_party/depot_tools
-        echo 'export PATH="$PATH:'"$PWD"'/src/third_party/depot_tools"' >> $BASH_ENV
-  - run:
-      name: Download GN Binary
-      command: |
-        chromium_revision="$(grep -A1 chromium_version src/electron/DEPS | tr -d '\n' | cut -d\' -f4)"
-        gn_version="$(curl -sL "https://chromium.googlesource.com/chromium/src/+/${chromium_revision}/DEPS?format=TEXT" | base64 -d | grep gn_version | head -n1 | cut -d\' -f4)"
-
-        cipd ensure -ensure-file - -root . \<<-CIPD
-        \$ServiceURL https://chrome-infra-packages.appspot.com/
-        @Subdir src/buildtools/linux64
-        gn/gn/linux-amd64 $gn_version
-        CIPD
-
-        echo 'export CHROMIUM_BUILDTOOLS_PATH="'"$PWD"'/src/buildtools"' >> $BASH_ENV
-  - run:
-      name: Download clang-format Binary
-      command: |
-        chromium_revision="$(grep -A1 chromium_version src/electron/DEPS | tr -d '\n' | cut -d\' -f4)"
-
-        sha1_path='buildtools/linux64/clang-format.sha1'
-        curl -sL "https://chromium.googlesource.com/chromium/src/+/${chromium_revision}/${sha1_path}?format=TEXT" | base64 -d > "src/${sha1_path}"
-
-        download_from_google_storage.py --no_resume --no_auth --bucket chromium-clang-format -s "src/${sha1_path}"
-  - run:
-      name: Run Lint
-      command: |
-        # gn.py tries to find a gclient root folder starting from the current dir.
-        # When it fails and returns "None" path, the whole script fails. Let's "fix" it.
-        touch .gclient
-        # Another option would be to checkout "buildtools" inside the Electron checkout,
-        # but then we would lint its contents (at least gn format), and it doesn't pass it.
-
-        cd src/electron
-        node script/yarn install --frozen-lockfile
-        node script/yarn lint
-  - run:
-      name: Run Script Typechecker
-      command: |
-        cd src/electron
-        node script/yarn tsc -p tsconfig.script.json
--- a/.circleci/config/package.json
+++ b/.circleci/config/package.json
@@ -1,10 +0,0 @@
-{
-  "name": "@electron/circleci-config",
-  "version": "0.0.0",
-  "private": true,
-  "license": "MIT",
-  "dependencies": {
-    "fs-extra": "^10.1.0",
-    "js-yaml": "^4.1.0"
-  }
-}
--- a/.circleci/config/yarn.lock
+++ b/.circleci/config/yarn.lock
@@ -1,43 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-argparse@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/argparse/-/argparse-2.0.1.tgz#246f50f3ca78a3240f6c997e8a9bd1eac49e4b38"
-  integrity sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==
-
-fs-extra@^10.1.0:
-  version "10.1.0"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-10.1.0.tgz#02873cfbc4084dde127eaa5f9905eef2325d1abf"
-  integrity sha512-oRXApq54ETRj4eMiFzGnHWGy+zo5raudjuxN0b8H7s/RU2oW0Wvsx9O0ACRN/kRq9E8Vu/ReskGB5o3ji+FzHQ==
-  dependencies:
-    graceful-fs "^4.2.0"
-    jsonfile "^6.0.1"
-    universalify "^2.0.0"
-
-graceful-fs@^4.1.6, graceful-fs@^4.2.0:
-  version "4.2.10"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.10.tgz#147d3a006da4ca3ce14728c7aefc287c367d7a6c"
-  integrity sha512-9ByhssR2fPVsNZj478qUUbKfmL0+t5BDVyjShtyZZLiK7ZDAArFFfopyOTj0M05wE2tJPisA4iTnnXl2YoPvOA==
-
-js-yaml@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.0.tgz#c1fb65f8f5017901cdd2c951864ba18458a10602"
-  integrity sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==
-  dependencies:
-    argparse "^2.0.1"
-
-jsonfile@^6.0.1:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-6.1.0.tgz#bc55b2634793c679ec6403094eb13698a6ec0aae"
-  integrity sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==
-  dependencies:
-    universalify "^2.0.0"
-  optionalDependencies:
-    graceful-fs "^4.1.6"
-
-universalify@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/universalify/-/universalify-2.0.0.tgz#75a4984efedc4b08975c5aeb73f530d02df25717"
-  integrity sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==
--- a/.devcontainer/README.md
+++ b/.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
-```
--- a/.devcontainer/devcontainer.json
+++ b/.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"
-}
--- a/.devcontainer/docker-compose.yml
+++ b/.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
--- a/.devcontainer/on-create-command.sh
+++ b/.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
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,2 +1,3 @@
 *
 !tools/xvfb-init.sh
+!build/install-build-deps.sh
--- a/.env.example
+++ b/.env.example
@@ -4,3 +4,4 @@
 APPVEYOR_CLOUD_TOKEN=
 CIRCLE_TOKEN=
 ELECTRON_GITHUB_TOKEN=
+VSTS_TOKEN=
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,5 +1,4 @@
 {
-  "root": true,
  "extends": "standard",
  "parser": "@typescript-eslint/parser",
  "plugins": ["@typescript-eslint"],
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,5 +0,0 @@
-# Atom --> Electron rename
-d9321f4df751fa32813fab1b6387bbd61bd681d0
-34c4c8d5088fa183f56baea28809de6f2a427e02
-# Enable JS Semicolons
-5d657dece4102e5e5304d42e8004b6ad64c0fcda
--- a/.github/CODEOWNERS
+++ b/.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
--- a/.github/ISSUE_TEMPLATE/Bug_report.md
+++ b/.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. -->
--- a/.github/ISSUE_TEMPLATE/Feature_request.md
+++ b/.github/ISSUE_TEMPLATE/Feature_request.md
@@ -0,0 +1,27 @@
+---
+name: Feature request
+about: Suggest an idea for 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 a feature request that matches the one I want to file, without success.
+
+### Problem Description
+<!-- Is your feature request related to a problem? Please add a clear and concise description of what the problem is. -->
+
+### Proposed Solution
+<!-- Describe the solution you'd like in a clear and concise manner -->
+
+### Alternatives Considered
+<!-- A clear and concise description of any alternative solutions or features you've considered. -->
+
+### Additional Information
+<!-- Add any other context about the problem here. -->
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -1,80 +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?
-      
-      Note: Please only report issues for [currently supported versions of Electron](https://www.electronjs.org/docs/latest/tutorial/support#currently-supported-versions).
-    placeholder: 17.0.0
-  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: 16.0.0
- 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.
--- a/.github/ISSUE_TEMPLATE/feature_request.yml
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -1,40 +0,0 @@
-name: Feature Request
-description: Suggest an idea for Electron
-title: "[Feature Request]: "
-labels: "enhancement :sparkles:"
-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 feature request that matches the one I want to file, without success.
-        required: true
- type: textarea
-  attributes:
-    label: Problem Description
-    description: Please add a clear and concise description of the problem you are seeking to solve with this feature request.
-  validations:
-    required: true
- type: textarea
-  attributes:
-    label: Proposed Solution
-    description: Describe the solution you'd like in a clear and concise manner.
-  validations:
-    required: true
- type: textarea
-  attributes:
-    label: Alternatives Considered
-    description: A clear and concise description of any alternative solutions or features you've considered. 
-  validations:
-    required: true
- type: textarea
-  attributes:
-    label: Additional Information
-    description: Add any other context about the problem here.
-  validations:
-    required: false
--- a/.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.md
+++ b/.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. -->
--- a/.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.yml
+++ b/.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.
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.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).

--- a/.github/config.yml
+++ b/.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.

@@ -36,6 +36,5 @@ authorizedUsers:
  - loc
  - MarshallOfSound
  - miniak
-  - mlaurencin
  - nornagon
  - zcbenz
--- a/.github/semantic.yml
+++ b/.github/semantic.yml
@@ -1,2 +0,0 @@
-# Always validate the PR title, and ignore the commits
-titleOnly: true
--- a/.github/workflows/semantic.yml
+++ b/.github/workflows/semantic.yml
@@ -1,20 +0,0 @@
-name: "Check Semantic Commit"
-
-on:
-  pull_request_target:
-    types:
-      - opened
-      - edited
-      - synchronize
-
-jobs:
-  main:
-    name: Validate PR Title
-    runs-on: ubuntu-latest
-    steps:
-      - name: semantic-pull-request
-        uses: amannn/action-semantic-pull-request@v4
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          validateSingleCommit: false
--- a/.gitignore
+++ b/.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

@@ -38,7 +55,7 @@ electron.d.ts
 spec/.hash

 # Eslint Cache
-.eslintcache*
+.eslintcache

 # Generated native addon files
 /spec-main/fixtures/native-addon/echo/build/
@@ -51,6 +68,4 @@ ts-gen
 .depshash-target

 # Used to accelerate builds after sync
-patches/mtime-cache.json
-
-spec/fixtures/logo.png
+patches/mtime-cache.json
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "vendor/requests"]
+	path = vendor/requests
+	url = https://github.com/kennethreitz/requests
+[submodule "vendor/boto"]
+	path = vendor/boto
+	url = https://github.com/boto/boto.git
--- a/.husky/.gitignore
+++ b/.husky/.gitignore
@@ -1 +0,0 @@
-_
--- a/.husky/pre-commit
+++ b/.husky/pre-commit
@@ -1,4 +0,0 @@
-#!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
-
-npm run precommit
--- a/.husky/pre-push
+++ b/.husky/pre-push
@@ -1,4 +0,0 @@
-#!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
-
-npm run prepack
--- a/.markdownlint.autofix.json
+++ b/.markdownlint.autofix.json
@@ -1,6 +0,0 @@
-{
-  "default": false,
-  "no-trailing-spaces": {
-    "br_spaces": 0
-  }
-}
--- a/.markdownlint.json
+++ b/.markdownlint.json
@@ -1,29 +0,0 @@
-{
-  "commands-show-output": false,
-  "first-line-h1": false,
-  "header-increment": false,
-  "line-length": {
-    "code_blocks": false,
-    "tables": false,
-    "stern": true,
-    "line_length": -1
-  },
-  "no-bare-urls": false,
-  "no-blanks-blockquote": false,
-  "no-duplicate-header": {
-    "allow_different_nesting": true
-  },
-  "no-emphasis-as-header": false,
-  "no-hard-tabs": {
-    "code_blocks": false
-  },
-  "no-space-in-emphasis": false,
-  "no-trailing-punctuation": false,
-  "no-trailing-spaces": {
-    "br_spaces": 0
-  },
-  "single-h1": false,
-  "no-inline-html": {
-    "allowed_elements": ["br"]
-  }
-}
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +0,0 @@
-14
--- a/BUILD.gn
+++ b/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")
@@ -13,7 +12,6 @@ import("//third_party/ffmpeg/ffmpeg_options.gni")
 import("//tools/generate_library_loader/generate_library_loader.gni")
 import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
-import("//tools/resources/generate_resource_allowlist.gni")
 import("//tools/v8_context_snapshot/v8_context_snapshot.gni")
 import("//v8/gni/snapshot_toolchain.gni")
 import("build/asar.gni")
@@ -27,8 +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")
@@ -36,15 +32,10 @@ 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) {
  import("//build/config/linux/pkg_config.gni")
-  import("//tools/generate_stubs/rules.gni")

  pkg_config("gio_unix") {
    packages = [ "gio-unix-2.0" ]
@@ -56,45 +47,6 @@ if (is_linux) {
      "gdk-pixbuf-2.0",
    ]
  }
-
-  generate_library_loader("libnotify_loader") {
-    name = "LibNotifyLoader"
-    output_h = "libnotify_loader.h"
-    output_cc = "libnotify_loader.cc"
-    header = "<libnotify/notify.h>"
-    config = ":libnotify_config"
-
-    functions = [
-      "notify_is_initted",
-      "notify_init",
-      "notify_get_server_caps",
-      "notify_get_server_info",
-      "notify_notification_new",
-      "notify_notification_add_action",
-      "notify_notification_set_image_from_pixbuf",
-      "notify_notification_set_timeout",
-      "notify_notification_set_urgency",
-      "notify_notification_set_hint_string",
-      "notify_notification_show",
-      "notify_notification_close",
-    ]
-  }
-
-  # Generates electron_gtk_stubs.h header which contains
-  # stubs for extracting function ptrs from the gtk library.
-  # Function signatures for which stubs are required should be
-  # declared in electron_gtk.sigs, currently this file contains
-  # signatures for the functions used with native file chooser
-  # implementation. In future, this file can be extended to contain
-  # gtk4 stubs to switch gtk version in runtime.
-  generate_stubs("electron_gtk_stubs") {
-    sigs = [ "shell/browser/ui/electron_gtk.sigs" ]
-    extra_header = "shell/browser/ui/electron_gtk.fragment"
-    output_name = "electron_gtk_stubs"
-    public_deps = [ "//ui/gtk:gtk_config" ]
-    logging_function = "LogNoop()"
-    logging_include = "ui/gtk/log_noop.h"
-  }
 }

 declare_args() {
@@ -228,12 +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") {
@@ -294,6 +240,31 @@ copy("copy_shell_devtools_discovery_page") {
  outputs = [ "$target_gen_dir/shell_devtools_discovery_page.html" ]
 }

+if (is_linux) {
+  generate_library_loader("libnotify_loader") {
+    name = "LibNotifyLoader"
+    output_h = "libnotify_loader.h"
+    output_cc = "libnotify_loader.cc"
+    header = "<libnotify/notify.h>"
+    config = ":libnotify_config"
+
+    functions = [
+      "notify_is_initted",
+      "notify_init",
+      "notify_get_server_caps",
+      "notify_get_server_info",
+      "notify_notification_new",
+      "notify_notification_add_action",
+      "notify_notification_set_image_from_pixbuf",
+      "notify_notification_set_timeout",
+      "notify_notification_set_urgency",
+      "notify_notification_set_hint_string",
+      "notify_notification_show",
+      "notify_notification_close",
+    ]
+  }
+}
+
 npm_action("electron_version_args") {
  script = "generate-version-json"

@@ -319,7 +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",
@@ -329,23 +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" ]
@@ -357,7 +311,6 @@ source_set("electron_lib") {

  deps = [
    ":electron_fuses",
-    ":electron_generate_node_defines",
    ":electron_js2c",
    ":electron_version_header",
    ":resources",
@@ -367,10 +320,8 @@ source_set("electron_lib") {
    "shell/common/api:mojo",
    "//base:base_static",
    "//base/allocator:buildflags",
-    "//chrome:strings",
    "//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",
@@ -378,11 +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",
@@ -395,6 +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",
@@ -404,7 +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",
@@ -412,7 +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",
@@ -438,6 +385,7 @@ source_set("electron_lib") {
  ]

  include_dirs = [
+    "chromium_src",
    ".",
    "$target_gen_dir",

@@ -454,10 +402,7 @@ source_set("electron_lib") {
  }

  if (!is_mas_build) {
-    deps += [
-      "//components/crash/core/app",
-      "//components/crash/core/browser",
-    ]
+    deps += [ "//components/crash/core/app" ]
  }

  sources = filenames.lib_sources
@@ -489,16 +434,12 @@ 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",
    ]
@@ -519,8 +460,6 @@ source_set("electron_lib") {
      "StoreKit.framework",
    ]

-    weak_frameworks = [ "QuickLookThumbnailing.framework" ]
-
    sources += [
      "shell/browser/ui/views/autofill_popup_view.cc",
      "shell/browser/ui/views/autofill_popup_view.h",
@@ -554,23 +493,21 @@ source_set("electron_lib") {
  if (is_linux) {
    libs = [ "xshmfence" ]
    deps += [
-      ":electron_gtk_stubs",
      ":libnotify_loader",
      "//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" ]
@@ -579,9 +516,8 @@ 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",
@@ -653,6 +589,12 @@ 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",
@@ -670,8 +612,6 @@ 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",
    ]
@@ -679,9 +619,6 @@ source_set("electron_lib") {
      "//chrome/services/printing/public/mojom",
      "//components/printing/common:mojo_interfaces",
    ]
-    if (is_mac) {
-      deps += [ "//chrome/services/mac_notifications/public/mojom" ]
-    }
  }

  if (enable_electron_extensions) {
@@ -695,7 +632,6 @@ source_set("electron_lib") {
      "//components/zoom",
      "//extensions/browser",
      "//extensions/browser:core_api_provider",
-      "//extensions/browser/updater",
      "//extensions/common",
      "//extensions/common:core_api_provider",
      "//extensions/renderer",
@@ -712,12 +648,10 @@ source_set("electron_lib") {
  }
  if (enable_pdf_viewer) {
    deps += [
-      "//chrome/browser/resources/pdf:resources",
+      "//chrome/browser/resources/pdf:pdf_resources",
      "//components/pdf/browser",
-      "//components/pdf/browser:interceptors",
-      "//components/pdf/common",
      "//components/pdf/renderer",
-      "//pdf",
+      "//pdf:pdf_ppapi",
    ]
    sources += [
      "shell/browser/electron_pdf_web_contents_helper_client.cc",
@@ -734,33 +668,6 @@ source_set("electron_lib") {
    ]
    libs += [ "uxtheme.lib" ]
  }
-
-  if (allow_runtime_configurable_key_storage) {
-    defines += [ "ALLOW_RUNTIME_CONFIGURABLE_KEY_STORAGE" ]
-  }
-}
-
-_electron_resource_allowlist = "$target_gen_dir/electron_resource_allowlist.txt"
-
-if (enable_resource_allowlist_generation) {
-  generate_resource_allowlist("resource_allowlist") {
-    if (is_mac) {
-      deps = [ ":electron_framework+link_nested" ]
-      inputs = [
-        "$target_out_dir/electron_framework_shared_library/Electron Framework",
-      ]
-    } else {
-      deps = [ ":electron_dll" ]
-      _target_shared_library_suffix = ".so"
-      if (is_win) {
-        _target_shared_library_suffix = ".dll.pdb"
-      }
-      inputs = [
-        "$target_out_dir/electron${_target_shared_library_suffix}"
-      ]
-    }
-    output = _electron_resource_allowlist
-  }
 }

 electron_paks("packed_resources") {
@@ -770,11 +677,6 @@ electron_paks("packed_resources") {
  } else {
    output_dir = root_out_dir
  }
-
-  if (enable_resource_allowlist_generation) {
-    repack_allowlist = _electron_resource_allowlist
-    deps = [ ":resource_allowlist" ]
-  }
 }

 if (is_mac) {
@@ -847,11 +749,16 @@ if (is_mac) {
    # Add the SwiftShader .dylibs in the Libraries directory of the Framework.
    bundle_data("electron_swiftshader_binaries") {
      sources = [
+        "$root_out_dir/egl_intermediates/libswiftshader_libEGL.dylib",
+        "$root_out_dir/egl_intermediates/libswiftshader_libGLESv2.dylib",
        "$root_out_dir/vk_intermediates/libvk_swiftshader.dylib",
        "$root_out_dir/vk_intermediates/vk_swiftshader_icd.json",
      ]
      outputs = [ "{{bundle_contents_dir}}/Libraries/{{source_file_part}}" ]
-      public_deps = [ "//ui/gl:swiftshader_vk_library_copy" ]
+      public_deps = [
+        "//ui/gl:swiftshader_egl_library_copy",
+        "//ui/gl:swiftshader_vk_library_copy",
+      ]
    }
  }
  group("electron_angle_library") {
@@ -897,11 +804,10 @@ if (is_mac) {
    deps = [
      ":electron_angle_library",
      ":electron_framework_libraries",
+      ":electron_framework_resources",
      ":electron_swiftshader_library",
      ":electron_xibs",
    ]
-
-    bundle_deps = [ ":electron_framework_resources" ]
    if (!is_mas_build) {
      deps += [ ":electron_crashpad_helper" ]
    }
@@ -941,20 +847,13 @@ if (is_mac) {
      assert(defined(invoker.helper_name_suffix))

      output_name = electron_helper_name + invoker.helper_name_suffix
-      deps = [
-        ":electron_framework+link",
-        "//base/allocator:early_zone_registration_mac",
-      ]
+      deps = [ ":electron_framework+link" ]
      if (!is_mas_build) {
        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 =
@@ -1052,14 +951,14 @@ if (is_mac) {
  action("electron_app_lproj_dirs") {
    outputs = []

-    foreach(locale, locales_as_apple_outputs) {
+    foreach(locale, locales_as_mac_outputs) {
      outputs += [ "$target_gen_dir/app_infoplist_strings/$locale.lproj" ]
    }
    script = "build/mac/make_locale_dirs.py"
    args = rebase_path(outputs)
  }

-  foreach(locale, locales_as_apple_outputs) {
+  foreach(locale, locales_as_mac_outputs) {
    bundle_data("electron_app_strings_${locale}_bundle_data") {
      sources = [ "$target_gen_dir/app_infoplist_strings/$locale.lproj" ]
      outputs = [ "{{bundle_resources_dir}}/$locale.lproj" ]
@@ -1068,7 +967,7 @@ if (is_mac) {
  }
  group("electron_app_strings_bundle_data") {
    public_deps = []
-    foreach(locale, locales_as_apple_outputs) {
+    foreach(locale, locales_as_mac_outputs) {
      public_deps += [ ":electron_app_strings_${locale}_bundle_data" ]
    }
  }
@@ -1085,32 +984,22 @@ 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",
-    ]
+    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/allocator:early_zone_registration_mac",
+      "//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",
@@ -1148,18 +1037,21 @@ if (is_mac) {
      deps = [ ":electron_app" ]
    }

-    extract_symbols("egl_syms") {
-      binary = "$root_out_dir/libEGL.dylib"
+    extract_symbols("swiftshader_egl_syms") {
+      binary = "$root_out_dir/libswiftshader_libEGL.dylib"
      symbol_dir = "$root_out_dir/breakpad_symbols"
-      dsym_file = "$root_out_dir/libEGL.dylib.dSYM/Contents/Resources/DWARF/libEGL.dylib"
-      deps = [ "//third_party/angle:libEGL" ]
+      dsym_file = "$root_out_dir/libswiftshader_libEGL.dylib.dSYM/Contents/Resources/DWARF/libswiftshader_libEGL.dylib"
+      deps =
+          [ "//third_party/swiftshader/src/OpenGL/libEGL:swiftshader_libEGL" ]
    }

-    extract_symbols("gles_syms") {
-      binary = "$root_out_dir/libGLESv2.dylib"
+    extract_symbols("swiftshader_gles_syms") {
+      binary = "$root_out_dir/libswiftshader_libGLESv2.dylib"
      symbol_dir = "$root_out_dir/breakpad_symbols"
-      dsym_file = "$root_out_dir/libGLESv2.dylib.dSYM/Contents/Resources/DWARF/libGLESv2.dylib"
-      deps = [ "//third_party/angle:libGLESv2" ]
+      dsym_file = "$root_out_dir/libswiftshader_libGLESv2.dylib.dSYM/Contents/Resources/DWARF/libswiftshader_libGLESv2.dylib"
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libGLESv2:swiftshader_libGLESv2",
+      ]
    }

    extract_symbols("crashpad_handler_syms") {
@@ -1171,10 +1063,10 @@ if (is_mac) {

    group("electron_symbols") {
      deps = [
-        ":egl_syms",
        ":electron_app_syms",
        ":electron_framework_syms",
-        ":gles_syms",
+        ":swiftshader_egl_syms",
+        ":swiftshader_gles_syms",
      ]

      if (!is_mas_build) {
@@ -1201,26 +1093,14 @@ if (is_mac) {
    ]
  }

-  shared_library("electron_dll") {
-    deps = [ ":electron_lib" ]
-  }
-
  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",
      ":electron_app_manifest",
-      ":electron_dll",
+      ":electron_lib",
      ":packed_resources",
      "//components/crash/core/app",
      "//content:sandbox_helper_win",
@@ -1229,14 +1109,13 @@ 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" ]
    }

@@ -1248,10 +1127,6 @@ 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
@@ -1278,6 +1153,11 @@ 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
@@ -1315,10 +1195,6 @@ if (is_mac) {
      if (!is_component_build && is_component_ffmpeg) {
        configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
      }
-
-      if (is_linux) {
-        deps += [ "//sandbox/linux:chrome_sandbox" ]
-      }
    }
  }

@@ -1337,23 +1213,27 @@ if (is_mac) {
      deps = [ ":electron_app" ]
    }

-    extract_symbols("egl_symbols") {
-      binary = "$root_out_dir/libEGL$_target_shared_library_suffix"
+    extract_symbols("swiftshader_egl_symbols") {
+      binary = "$root_out_dir/swiftshader/libEGL$_target_shared_library_suffix"
      symbol_dir = "$root_out_dir/breakpad_symbols"
-      deps = [ "//third_party/angle:libEGL" ]
+      deps =
+          [ "//third_party/swiftshader/src/OpenGL/libEGL:swiftshader_libEGL" ]
    }

-    extract_symbols("gles_symbols") {
-      binary = "$root_out_dir/libGLESv2$_target_shared_library_suffix"
+    extract_symbols("swiftshader_gles_symbols") {
+      binary =
+          "$root_out_dir/swiftshader/libGLESv2$_target_shared_library_suffix"
      symbol_dir = "$root_out_dir/breakpad_symbols"
-      deps = [ "//third_party/angle:libGLESv2" ]
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libGLESv2:swiftshader_libGLESv2",
+      ]
    }

    group("electron_symbols") {
      deps = [
-        ":egl_symbols",
        ":electron_app_symbols",
-        ":gles_symbols",
+        ":swiftshader_egl_symbols",
+        ":swiftshader_gles_symbols",
      ]
    }
  }
@@ -1404,18 +1284,13 @@ 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",
           ]
  }
 }
@@ -1451,13 +1326,11 @@ 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" ]
 }

@@ -1475,7 +1348,6 @@ group("electron_chromedriver") {
 dist_zip("electron_chromedriver_zip") {
  testonly = true
  data_deps = electron_chromedriver_deps
-  deps = data_deps
  outputs = [ "$root_build_dir/chromedriver.zip" ]
 }

@@ -1494,7 +1366,6 @@ group("electron_mksnapshot") {

 dist_zip("electron_mksnapshot_zip") {
  data_deps = mksnapshot_deps
-  deps = data_deps
  outputs = [ "$root_build_dir/mksnapshot.zip" ]
 }

@@ -1505,52 +1376,11 @@ 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" ]
 }
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -2,8 +2,8 @@

 As a member project of the OpenJS Foundation, Electron uses [Contributor Covenant v2.0](https://contributor-covenant.org/version/2/0/code_of_conduct) as their code of conduct. The full text is included [below](#contributor-covenant-code-of-conduct) in English, and translations are available from the Contributor Covenant organisation:

-* [contributor-covenant.org/translations](https://www.contributor-covenant.org/translations)
-* [github.com/ContributorCovenant](https://github.com/ContributorCovenant/contributor_covenant/tree/release/content/version/2/0)
+- [contributor-covenant.org/translations](https://www.contributor-covenant.org/translations)
+- [github.com/ContributorCovenant](https://github.com/ContributorCovenant/contributor_covenant/tree/release/content/version/2/0)

 ## Contributor Covenant Code of Conduct

--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -22,21 +22,21 @@ 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!_

 ### Languages

 We accept issues in *any* language.
-When an issue is posted in a language besides English, it is acceptable and encouraged to post an English-translated copy as a reply.
+When an issue is posted in a language besides English, it is acceptable and encouraged to post an English-translated copy as a reply. 
 Anyone may post the translated reply.
 In most cases, a quick pass through translation software is sufficient.
 Having the original text _as well as_ the translation can help mitigate translation errors.

 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)

@@ -66,5 +66,5 @@ See [Coding Style](https://electronjs.org/docs/development/coding-style) for inf

 ## Further Reading

-For more in-depth guides on developing Electron, see
+For more in-depth guides on developing Electron, see 
 [/docs/development](/docs/development/README.md)
--- a/63
+++ b/63
@@ -1,23 +1,34 @@
-gclient_gn_args_from = 'src'
+gclient_gn_args_file = 'src/build/config/gclient_args.gni'
+gclient_gn_args = [
+  'build_with_chromium',
+  'checkout_android',
+  'checkout_android_native_support',
+  'checkout_libaom',
+  'checkout_nacl',
+  'checkout_pgo_profiles',
+  'checkout_oculus_sdk',
+  'checkout_openxr',
+  'checkout_google_benchmark',
+  'mac_xcode_version',
+]

 vars = {
  'chromium_version':
-    '102.0.4999.0',
+    '89.0.4389.90',
  'node_version':
-    'v16.14.2',
+    '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',
+    '2c4ee8a32a299eada3cd6e468bbd0a473bfea96d',
  'squirrel.mac_version':
-    '0e5d146ba13101a1302d59ea6e6e0b3cace4ae38',
+    'cdc0729c8bf8576bfef18629186e1e9ecf1b0d9f',

  'pyyaml_version': '3.12',
+  'requests_version': 'e4d59bedfd3c7f4f254f4f5d036587bcd8152458',

  'chromium_git': 'https://chromium.googlesource.com',
  'electron_git': 'https://github.com/electron',
  'nodejs_git': 'https://github.com/nodejs',
+  'requests_git': 'https://github.com/kennethreitz',
  'yaml_git': 'https://github.com/yaml',
  'squirrel_git': 'https://github.com/Squirrel',

@@ -39,15 +50,18 @@ vars = {
  # It's only needed to parse the native tests configurations.
  'checkout_pyyaml': False,

-  'use_rts': False,
+  # Python "requests" module is used for releases only.
+  'checkout_requests': False,

  'mac_xcode_version': 'default',

-  'generate_location_tags': False,
-
  # To allow running hooks without parsing the DEPS tree
  'process_deps': True,

+  # It is always needed for normal Electron builds,
+  # but might be impossible for custom in-house builds.
+  'download_external_binaries': True,
+
  'checkout_nacl':
    False,
  'checkout_libaom':
@@ -81,10 +95,14 @@ 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',
  },
+  'src/electron/vendor/requests': {
+    'url': Var('requests_git') + '/requests.git' + '@' +  Var('requests_version'),
+    'condition': 'checkout_requests and process_deps',
+  },
  'src/third_party/squirrel.mac': {
    'url': Var("squirrel_git") + '/Squirrel.Mac.git@' + Var("squirrel.mac_version"),
    'condition': 'process_deps',
@@ -139,13 +157,32 @@ hooks = [
      'src/electron/patches/mtime-cache.json',
    ],
  },
+  {
+    'name': 'electron_external_binaries',
+    'pattern': 'src/electron/script/update-external-binaries.py',
+    'condition': 'download_external_binaries',
+    'action': [
+      'python3',
+      'src/electron/script/update-external-binaries.py',
+    ],
+  },
  {
    'name': 'electron_npm_deps',
    'pattern': 'src/electron/package.json',
    'action': [
      'python3',
      '-c',
-      'import os, subprocess; os.chdir(os.path.join("src", "electron")); subprocess.check_call(["python3", "script/lib/npx.py", "yarn@' + (Var("yarn_version")) + '", "install", "--frozen-lockfile"]);',
+      'import os, subprocess; os.chdir(os.path.join("src", "electron")); subprocess.check_call(["python", "script/lib/npx.py", "yarn@' + (Var("yarn_version")) + '", "install", "--frozen-lockfile"]);',
+    ],
+  },
+  {
+    'name': 'setup_requests',
+    'pattern': 'src/electron',
+    'condition': 'checkout_requests and process_deps',
+    'action': [
+      'python3',
+      '-c',
+      'import os, subprocess; os.chdir(os.path.join("src", "electron", "vendor", "requests")); subprocess.check_call(["python", "setup.py", "build"]);',
    ],
  },
 ]
--- a/2
+++ b/2
@@ -1 +1 @@
-20.0.0-nightly.20220428
+12.0.2
--- a/1
+++ b/1
@@ -1,4 +1,3 @@
-Copyright (c) Electron contributors
 Copyright (c) 2013-2020 GitHub Inc.

 Permission is hereby granted, free of charge, to any person obtaining
--- a/README.md
+++ b/README.md
@@ -1,10 +1,12 @@
 [![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)

-:memo: Available Translations: 🇨🇳 🇧🇷 🇪🇸 🇯🇵 🇷🇺 🇫🇷 🇺🇸 🇩🇪.
+[![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: 🇨🇳 🇹🇼 🇧🇷 🇪🇸 🇰🇷 🇯🇵 🇷🇺 🇫🇷 🇹🇭 🇳🇱 🇹🇷 🇮🇩 🇺🇦 🇨🇿 🇮🇹 🇵🇱.
 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 +18,7 @@ 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).

@@ -34,17 +36,6 @@ For more installation options and troubleshooting tips, see
 [installation](docs/tutorial/installation.md). For info on how to manage Electron versions in your apps, see
 [Electron versioning](docs/tutorial/electron-versioning.md).

-## Platform support
-
-Each Electron release provides binaries for macOS, Windows, and Linux.
-
-* macOS (El Capitan and up): Electron provides 64-bit Intel and ARM binaries for macOS. Apple Silicon support was added in Electron 11.
-* Windows (Windows 7 and up): Electron provides `ia32` (`x86`), `x64` (`amd64`), and `arm64` binaries for Windows. Windows on ARM support was added in Electron 5.0.8.
-* Linux: The prebuilt binaries of Electron are built on Ubuntu 20.04. They have also been verified to work on:
-  * Ubuntu 14.04 and newer
-  * Fedora 24 and newer
-  * Debian 8 and newer
-
 ## Quick start & Electron Fiddle

 Use [`Electron Fiddle`](https://github.com/electron/fiddle)
@@ -65,10 +56,13 @@ npm start

 ## Resources for learning Electron

-* [electronjs.org/docs](https://electronjs.org/docs) - All of Electron's documentation
-* [electron/fiddle](https://github.com/electron/fiddle) - A tool to build, run, and package small Electron experiments
-* [electron/electron-quick-start](https://github.com/electron/electron-quick-start) - A very basic starter Electron app
-* [electronjs.org/community#boilerplates](https://electronjs.org/community#boilerplates) - Sample starter apps created by the community
+- [electronjs.org/docs](https://electronjs.org/docs) - All of Electron's documentation
+- [electron/fiddle](https://github.com/electron/fiddle) - A tool to build, run, and package small Electron experiments
+- [electron/electron-quick-start](https://github.com/electron/electron-quick-start) - A very basic starter Electron app
+- [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

@@ -89,15 +83,11 @@ const child = proc.spawn(electron)

 ### Mirrors

-* [China](https://npmmirror.com/mirrors/electron/)
+- [China](https://npm.taobao.org/mirrors/electron)

-See the [Advanced Installation Instructions](https://www.electronjs.org/docs/latest/tutorial/installation#mirror) to learn how to use a custom mirror.
+## Documentation Translations

-## Documentation translations
-
-We crowdsource translations for our documentation via [Crowdin](https://crowdin.com/project/electron).
-We currently accept translations for Chinese (Simplified), French, German, Japanese, Portuguese,
-Russian, and Spanish.
+Find documentation translations in [electron/i18n](https://github.com/electron/i18n).

 ## Contributing

@@ -106,10 +96,10 @@ If you are interested in reporting/fixing issues and contributing directly to th
 ## Community

 Info on reporting bugs, getting help, finding third-party tools and sample apps,
-and more can be found on the [Community page](https://www.electronjs.org/community).
+and more can be found in the [support document](docs/tutorial/support.md#finding-support).

 ## License

-[MIT](https://github.com/electron/electron/blob/main/LICENSE)
+[MIT](https://github.com/electron/electron/blob/master/LICENSE)

-When using Electron logos, make sure to follow [OpenJS Foundation Trademark Policy](https://openjsf.org/wp-content/uploads/sites/84/2021/01/OpenJS-Foundation-Trademark-Policy-2021-01-12.docx.pdf).
+When using the Electron or other GitHub logos, be sure to follow the [GitHub logo guidelines](https://github.com/logos).
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -10,8 +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
-
 To learn more about securing an Electron application, please see the [security tutorial](docs/tutorial/security.md).
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -23,17 +23,19 @@
 # https://www.appveyor.com/docs/build-configuration/#secure-variables
 # https://www.appveyor.com/docs/build-configuration/#custom-environment-variables

+# Uncomment these lines to enable RDP
+#on_finish:
+#  - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+
 version: 1.0.{build}
 build_cloud: electron-16-core
-image: vs2019bt-16.16.11
+image: vs2019bt-16.6.2
 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
 notifications:
  - provider: Webhook
    url: https://electron-mission-control.herokuapp.com/rest/appveyor-hook
@@ -63,34 +65,11 @@ 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 ($env:GN_CONFIG -ne 'release') {
+      if ($env:GN_CONFIG -eq 'release') {
+        $env:GCLIENT_EXTRA_ARGS="$env:GCLIENT_EXTRA_ARGS --custom-var=checkout_requests=True"
+      } else {
        $env:NINJA_STATUS="[%r processes, %f/%t @ %o/s : %es] "
      }
  - >-
@@ -119,6 +98,8 @@ build_script:
              $env:SAVE_GCLIENT_SRC="true"
            }
          } else {
+            # update external binaries
+            python src/electron/script/update-external-binaries.py
            # update angle
            cd src\third_party\angle
            git remote set-url origin  https://chromium.googlesource.com/angle/angle.git
@@ -134,7 +115,7 @@ build_script:
          }
        }
      }
-  - if "%RUN_GCLIENT_SYNC%"=="true" ( gclient sync )
+  - if "%RUN_GCLIENT_SYNC%"=="true" ( gclient sync --with_branch_heads --with_tags --ignore_locks)
  - ps: >-
      if ($env:SAVE_GCLIENT_SRC -eq 'true') {
        # archive current source for future use 
@@ -150,13 +131,22 @@ build_script:
        if ($LASTEXITCODE -ne 0) {
          Write-warning "Failed to add third_party\angle\.git; continuing anyway"
        }
-        # build time generation of file dawn/common/Version_autogen.h depends on third_party/dawn/.git/HEAD
-        # https://dawn-review.googlesource.com/c/dawn/+/83901        
-        $(7z a $zipfile src\third_party\dawn\.git)
-        if ($LASTEXITCODE -ne 0) {
-          Write-warning "Failed to add third_party\dawn\.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 $env:LOCAL_GOMA_DIR
  - cd src
  - set BUILD_CONFIG_PATH=//electron/build/args/%GN_CONFIG%.gn 
  - gn gen out/Default "--args=import(\"%BUILD_CONFIG_PATH%\") import(\"%GN_GOMA_FILE%\") %GN_EXTRA_ARGS% "
@@ -178,25 +168,32 @@ build_script:
  - ninja -C out/Default electron:electron_chromedriver_zip
  - ninja -C out/Default third_party/electron_node:headers
  - python %LOCAL_GOMA_DIR%\goma_ctl.py stat
-  - python3 electron/build/profile_toolchain.py --output-json=out/Default/windows_toolchain_profile.json
+  - python electron/build/profile_toolchain.py --output-json=out/Default/windows_toolchain_profile.json
+  - appveyor PushArtifact out/Default/windows_toolchain_profile.json
+  - appveyor PushArtifact out/Default/dist.zip
+  - appveyor PushArtifact out/Default/shell_browser_ui_unittests.exe
+  - appveyor PushArtifact out/Default/chromedriver.zip
+  - appveyor PushArtifact out/ffmpeg/ffmpeg.zip
  - 7z a node_headers.zip out\Default\gen\node_headers
-  # Temporarily disable symbol generation on 32-bit Windows due to failures  
+  - appveyor PushArtifact node_headers.zip
+  - appveyor PushArtifact out/Default/mksnapshot.zip
+  - appveyor PushArtifact out/Default/hunspell_dictionaries.zip
+  - appveyor PushArtifact out/Default/electron.lib
  - ps: >-
-      if ($env:GN_CONFIG -eq 'release' -And $env:TARGET_ARCH -ne 'ia32') {
+      if ($env:GN_CONFIG -eq 'release') {
        # Needed for msdia140.dll on 64-bit windows
        $env:Path += ";$pwd\third_party\llvm-build\Release+Asserts\bin"
        ninja -C out/Default electron:electron_symbols
      }
  - ps: >-
      if ($env:GN_CONFIG -eq 'release') {
-        if ($env:TARGET_ARCH -ne 'ia32') {
-          python electron\script\zip-symbols.py
-          appveyor-retry appveyor PushArtifact out/Default/symbols.zip
-        }
+        python electron\script\zip-symbols.py
+        appveyor-retry appveyor PushArtifact out/Default/symbols.zip
      } else {
        # It's useful to have pdb files when debugging testing builds that are
        # built on CI.
        7z a pdb.zip out\Default\*.pdb
+        appveyor-retry appveyor PushArtifact pdb.zip
      }
  - python electron/script/zip_manifests/check-zip-manifest.py out/Default/dist.zip electron/script/zip_manifests/dist_zip.win.%TARGET_ARCH%.manifest
 test_script:
@@ -215,9 +212,7 @@ 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"
@@ -239,22 +234,3 @@ 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:
-  # Uncomment this lines to enable RDP
-  #- ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
-  - cd ..
-  - if exist out\Default\windows_toolchain_profile.json ( appveyor-retry appveyor PushArtifact out\Default\windows_toolchain_profile.json )
-  - if exist out\Default\dist.zip (appveyor-retry appveyor PushArtifact out\Default\dist.zip)
-  - if exist out\Default\shell_browser_ui_unittests.exe (appveyor-retry appveyor PushArtifact out\Default\shell_browser_ui_unittests.exe)
-  - if exist out\Default\chromedriver.zip (appveyor-retry appveyor PushArtifact out\Default\chromedriver.zip)
-  - if exist out\ffmpeg\ffmpeg.zip (appveyor-retry appveyor PushArtifact out\ffmpeg\ffmpeg.zip)
-  - if exist node_headers.zip (appveyor-retry appveyor PushArtifact node_headers.zip)
-  - if exist out\Default\mksnapshot.zip (appveyor-retry appveyor PushArtifact out\Default\mksnapshot.zip)
-  - if exist out\Default\hunspell_dictionaries.zip (appveyor-retry appveyor PushArtifact out\Default\hunspell_dictionaries.zip)
-  - if exist out\Default\electron.lib (appveyor-retry appveyor PushArtifact out\Default\electron.lib)
-  - ps: >-
-      if ((Test-Path "pdb.zip") -And ($env:GN_CONFIG -ne 'release')) {
-        appveyor-retry appveyor PushArtifact pdb.zip
-      }
-
-  - if exist electron\electron.log ( appveyor-retry appveyor PushArtifact electron\electron.log )
--- a/azure-pipelines-arm.yml
+++ b/azure-pipelines-arm.yml
@@ -17,7 +17,6 @@ steps:
    node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=dist.zip --dest=$ZIP_DEST
    cd $ZIP_DEST
    unzip -o dist.zip
-    xattr -cr Electron.app    
  displayName: 'Download and unzip dist files for test'
  env:
    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
@@ -49,44 +48,38 @@ steps:
   mkdir -p $CROSS_ARCH_SNAPSHOTS
   cd src/electron
   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/snapshot_blob.bin --dest=$CROSS_ARCH_SNAPSHOTS
-   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/v8_context_snapshot.arm64.bin --dest=$CROSS_ARCH_SNAPSHOTS
+   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/v8_context_snapshot.bin --dest=$CROSS_ARCH_SNAPSHOTS
  displayName: 'Download cross arch snapshot files'
  env:
    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)

+- bash: |
+   export NATIVE_UNITTESTS_DEST=$PWD/src/out/Default
+   cd src/electron
+   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=shell_browser_ui_unittests --dest=$NATIVE_UNITTESTS_DEST
+   chmod +x $NATIVE_UNITTESTS_DEST/shell_browser_ui_unittests
+  displayName: 'Download native unittest executables'
+  env:
+    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
+
 - bash: |
    cd src
    export ELECTRON_OUT_DIR=Default
-    export npm_config_arch=arm64
-    (cd electron && node script/yarn test --enable-logging --runners main)
-  displayName: 'Run Electron main tests'
+    set npm_config_arch=arm64
+    (cd electron && node script/yarn test -- --enable-logging)
+  displayName: 'Run Electron tests'
  timeoutInMinutes: 20
  env:
    ELECTRON_DISABLE_SECURITY_WARNINGS: 1
    IGNORE_YARN_INSTALL_ERROR: 1
    ELECTRON_TEST_RESULTS_DIR: junit

- bash: |
-    cd src
-    export ELECTRON_OUT_DIR=Default
-    export npm_config_arch=arm64
-    (cd electron && node script/yarn test --enable-logging --runners remote)
-  displayName: 'Run Electron remote tests'
-  timeoutInMinutes: 20
-  condition: succeededOrFailed()
-  env:
-    ELECTRON_DISABLE_SECURITY_WARNINGS: 1
-    IGNORE_YARN_INSTALL_ERROR: 1
-    ELECTRON_TEST_RESULTS_DIR: junit
-
 - bash: |
    cd src
    python electron/script/verify-ffmpeg.py --source-root "$PWD" --build-dir out/Default --ffmpeg-path out/ffmpeg
  displayName: Verify non proprietary ffmpeg
  timeoutInMinutes: 5
  condition: succeededOrFailed()
-  env:
-    TARGET_ARCH: arm64

 - bash: |
    cd src
@@ -105,16 +98,6 @@ steps:

  condition: succeededOrFailed()

- bash: killall Electron || echo "No Electron processes left running"
-  displayName: 'Kill processes left running from last test run'
-  condition: always()
-
- bash: |
-    rm -rf ~/Library/Application\ Support/Electron*
-    rm -rf ~/Library/Application\ Support/electron*
-  displayName: 'Delete user app data directories'
-  condition: always()
-
 - task: mspremier.PostBuildCleanup.PostBuildCleanup-task.PostBuildCleanup@3
  displayName: 'Clean Agent Directories'

--- a/azure-pipelines-woa.yml
+++ b/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'
--- a/build/args/all.gn
+++ b/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 = 107
+node_module_version = 87

 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"
@@ -24,23 +19,4 @@ enable_basic_printing = true
 angle_enable_vulkan_validation_layers = false
 dawn_enable_vulkan_validation_layers = 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
-
-# Make application name configurable at runtime for cookie crypto
-allow_runtime_configurable_key_storage = true
-
-# CET shadow stack is incompatible with v8, until v8 is CET compliant
-# enabling this flag causes main process crashes where CET is enabled
-# Ref: https://source.chromium.org/chromium/chromium/src/+/45fba672185aae233e75d6ddc81ea1e0b30db050:v8/BUILD.gn;l=357
-enable_cet_shadow_stack = false
-
-# For similar reasons, disable CFI, which is not well supported in V8.
-# Chromium doesn't have any problems with this because they do not run
-# V8 in the browser process.
-# Ref: https://source.chromium.org/chromium/chromium/src/+/45fba672185aae233e75d6ddc81ea1e0b30db050:v8/BUILD.gn;l=281
 is_cfi = false
-
-enable_resource_allowlist_generation = true
--- a/build/asar.gni
+++ b/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)
-  }
 }
--- a/build/dump_syms.py
+++ b/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))

--- a/build/fuses/build.py
+++ b/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']
--- a/build/fuses/fuses.json5
+++ b/build/fuses/fuses.json5
@@ -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"
 }
--- a/build/generate_node_defines.py
+++ b/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:])
--- a/build/install-build-deps.sh
+++ b/build/install-build-deps.sh
@@ -0,0 +1,653 @@
+#!/bin/bash -e
+# 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.
+# Script to install everything needed to build chromium (well, ideally, anyway)
+# See https://chromium.googlesource.com/chromium/src/+/master/docs/linux_build_instructions.md
+usage() {
+  echo "Usage: $0 [--options]"
+  echo "Options:"
+  echo "--[no-]syms: enable or disable installation of debugging symbols"
+  echo "--lib32: enable installation of 32-bit libraries, e.g. for V8 snapshot"
+  echo "--[no-]arm: enable or disable installation of arm cross toolchain"
+  echo "--[no-]chromeos-fonts: enable or disable installation of Chrome OS"\
+       "fonts"
+  echo "--[no-]nacl: enable or disable installation of prerequisites for"\
+       "building standalone NaCl and all its toolchains"
+  echo "--[no-]backwards-compatible: enable or disable installation of packages
+        that are no longer currently needed and have been removed from this
+        script.  Useful for bisection."
+  echo "--no-prompt: silently select standard options/defaults"
+  echo "--quick-check: quickly try to determine if dependencies are installed"
+  echo "               (this avoids interactive prompts and sudo commands,"
+  echo "               so might not be 100% accurate)"
+  echo "--unsupported: attempt installation even on unsupported systems"
+  echo "Script will prompt interactively if options not given."
+  exit 1
+}
+# Checks whether a particular package is available in the repos.
+# USAGE: $ package_exists <package name>
+package_exists() {
+  # 'apt-cache search' takes a regex string, so eg. the +'s in packages like
+  # "libstdc++" need to be escaped.
+  local escaped="$(echo $1 | sed 's/[\~\+\.\:-]/\\&/g')"
+  [ ! -z "$(apt-cache search --names-only "${escaped}" | \
+            awk '$1 == "'$1'" { print $1; }')" ]
+}
+# These default to on because (some) bots need them and it keeps things
+# simple for the bot setup if all bots just run the script in its default
+# mode.  Developers who don't want stuff they don't need installed on their
+# own workstations can pass --no-arm --no-nacl when running the script.
+do_inst_arm=1
+do_inst_nacl=1
+while [ "$1" != "" ]
+do
+  case "$1" in
+  --syms)                    do_inst_syms=1;;
+  --no-syms)                 do_inst_syms=0;;
+  --lib32)                   do_inst_lib32=1;;
+  --arm)                     do_inst_arm=1;;
+  --no-arm)                  do_inst_arm=0;;
+  --chromeos-fonts)          do_inst_chromeos_fonts=1;;
+  --no-chromeos-fonts)       do_inst_chromeos_fonts=0;;
+  --nacl)                    do_inst_nacl=1;;
+  --no-nacl)                 do_inst_nacl=0;;
+  --backwards-compatible)    do_inst_backwards_compatible=1;;
+  --no-backwards-compatible) do_inst_backwards_compatible=0;;
+  --add-cross-tool-repo)     add_cross_tool_repo=1;;
+  --no-prompt)               do_default=1
+                             do_quietly="-qq --assume-yes"
+    ;;
+  --quick-check)             do_quick_check=1;;
+  --unsupported)             do_unsupported=1;;
+  *) usage;;
+  esac
+  shift
+done
+if [ "$do_inst_arm" = "1" ]; then
+  do_inst_lib32=1
+fi
+# Check for lsb_release command in $PATH
+if ! which lsb_release > /dev/null; then
+  echo "ERROR: lsb_release not found in \$PATH" >&2
+  exit 1;
+fi
+distro_codename=$(lsb_release --codename --short)
+distro_id=$(lsb_release --id --short)
+supported_codenames="(trusty|xenial|artful|bionic)"
+supported_ids="(Debian)"
+if [ 0 -eq "${do_unsupported-0}" ] && [ 0 -eq "${do_quick_check-0}" ] ; then
+  if [[ ! $distro_codename =~ $supported_codenames &&
+        ! $distro_id =~ $supported_ids ]]; then
+    echo -e "ERROR: The only supported distros are\n" \
+      "\tUbuntu 14.04 LTS (trusty)\n" \
+      "\tUbuntu 16.04 LTS (xenial)\n" \
+      "\tUbuntu 17.10 (artful)\n" \
+      "\tUbuntu 18.04 LTS (bionic)\n" \
+      "\tDebian 8 (jessie) or later" >&2
+    exit 1
+  fi
+  if ! uname -m | egrep -q "i686|x86_64"; then
+    echo "Only x86 architectures are currently supported" >&2
+    exit
+  fi
+fi
+if [ "x$(id -u)" != x0 ] && [ 0 -eq "${do_quick_check-0}" ]; then
+  echo "Running as non-root user."
+  echo "You might have to enter your password one or more times for 'sudo'."
+  echo
+fi
+# Packages needed for chromeos only
+chromeos_dev_list="libbluetooth-dev libxkbcommon-dev"
+if package_exists realpath; then
+  chromeos_dev_list="${chromeos_dev_list} realpath"
+fi
+# Packages needed for development
+dev_list="\
+  binutils
+  bison
+  bzip2
+  cdbs
+  curl
+  dbus-x11
+  dpkg-dev
+  elfutils
+  devscripts
+  fakeroot
+  flex
+  g++
+  git-core
+  git-svn
+  gperf
+  libappindicator3-dev
+  libasound2-dev
+  libatspi2.0-dev
+  libbrlapi-dev
+  libbz2-dev
+  libcairo2-dev
+  libcap-dev
+  libcups2-dev
+  libcurl4-gnutls-dev
+  libdrm-dev
+  libelf-dev
+  libffi-dev
+  libgbm-dev
+  libglib2.0-dev
+  libglu1-mesa-dev
+  libgnome-keyring-dev
+  libgtk-3-dev
+  libkrb5-dev
+  libnspr4-dev
+  libnss3-dev
+  libpam0g-dev
+  libpci-dev
+  libpulse-dev
+  libsctp-dev
+  libspeechd-dev
+  libsqlite3-dev
+  libssl-dev
+  libudev-dev
+  libwww-perl
+  libxslt1-dev
+  libxss-dev
+  libxt-dev
+  libxtst-dev
+  locales
+  openbox
+  p7zip
+  patch
+  perl
+  pkg-config
+  python
+  python-cherrypy3
+  python-crypto
+  python-dev
+  python-numpy
+  python-opencv
+  python-openssl
+  python-psutil
+  python-yaml
+  rpm
+  ruby
+  subversion
+  uuid-dev
+  wdiff
+  x11-utils
+  xcompmgr
+  xz-utils
+  zip
+  $chromeos_dev_list
+"
+# 64-bit systems need a minimum set of 32-bit compat packages for the pre-built
+# NaCl binaries.
+if file -L /sbin/init | grep -q 'ELF 64-bit'; then
+  dev_list="${dev_list} libc6-i386 lib32gcc1 lib32stdc++6"
+fi
+# Run-time libraries required by chromeos only
+chromeos_lib_list="libpulse0 libbz2-1.0"
+# List of required run-time libraries
+common_lib_list="\
+  libappindicator3-1
+  libasound2
+  libatk1.0-0
+  libatspi2.0-0
+  libc6
+  libcairo2
+  libcap2
+  libcups2
+  libexpat1
+  libffi6
+  libfontconfig1
+  libfreetype6
+  libglib2.0-0
+  libgnome-keyring0
+  libgtk-3-0
+  libpam0g
+  libpango1.0-0
+  libpci3
+  libpcre3
+  libpixman-1-0
+  libspeechd2
+  libstdc++6
+  libsqlite3-0
+  libuuid1
+  libwayland-egl1-mesa
+  libx11-6
+  libx11-xcb1
+  libxau6
+  libxcb1
+  libxcomposite1
+  libxcursor1
+  libxdamage1
+  libxdmcp6
+  libxext6
+  libxfixes3
+  libxi6
+  libxinerama1
+  libxrandr2
+  libxrender1
+  libxtst6
+  zlib1g
+"
+# Full list of required run-time libraries
+lib_list="\
+  $common_lib_list
+  $chromeos_lib_list
+"
+# 32-bit libraries needed e.g. to compile V8 snapshot for Android or armhf
+lib32_list="linux-libc-dev:i386 libpci3:i386"
+# 32-bit libraries needed for a 32-bit build
+lib32_list="$lib32_list libx11-xcb1:i386"
+# Packages that have been removed from this script.  Regardless of configuration
+# or options passed to this script, whenever a package is removed, it should be
+# added here.
+backwards_compatible_list="\
+  7za
+  fonts-indic
+  fonts-ipafont
+  fonts-stix
+  fonts-thai-tlwg
+  fonts-tlwg-garuda
+  language-pack-da
+  language-pack-fr
+  language-pack-he
+  language-pack-zh-hant
+  libappindicator-dev
+  libappindicator1
+  libappindicator3-1:i386
+  libexif-dev
+  libexif12
+  libexif12:i386
+  libgbm-dev
+  libgl1-mesa-dev
+  libgl1-mesa-glx:i386
+  libgles2-mesa-dev
+  libgtk2.0-0
+  libgtk2.0-0:i386
+  libgtk2.0-dev
+  mesa-common-dev
+  msttcorefonts
+  ttf-dejavu-core
+  ttf-indic-fonts
+  ttf-kochi-gothic
+  ttf-kochi-mincho
+  ttf-mscorefonts-installer
+  xfonts-mathml
+"
+case $distro_codename in
+  trusty)
+    backwards_compatible_list+=" \
+      libgbm-dev-lts-trusty
+      libgl1-mesa-dev-lts-trusty
+      libgl1-mesa-glx-lts-trusty:i386
+      libgles2-mesa-dev-lts-trusty
+      mesa-common-dev-lts-trusty"
+    ;;
+  xenial)
+    backwards_compatible_list+=" \
+      libgbm-dev-lts-xenial
+      libgl1-mesa-dev-lts-xenial
+      libgl1-mesa-glx-lts-xenial:i386
+      libgles2-mesa-dev-lts-xenial
+      mesa-common-dev-lts-xenial"
+    ;;
+esac
+# arm cross toolchain packages needed to build chrome on armhf
+EM_REPO="deb http://emdebian.org/tools/debian/ jessie main"
+EM_SOURCE=$(cat <<EOF
+# Repo added by Chromium $0
+${EM_REPO}
+# deb-src http://emdebian.org/tools/debian/ jessie main
+EOF
+)
+EM_ARCHIVE_KEY_FINGER="084C6C6F39159EDB67969AA87DE089671804772E"
+GPP_ARM_PACKAGE="g++-arm-linux-gnueabihf"
+case $distro_codename in
+  jessie)
+    eval $(apt-config shell APT_SOURCESDIR 'Dir::Etc::sourceparts/d')
+    CROSSTOOLS_LIST="${APT_SOURCESDIR}/crosstools.list"
+    arm_list="libc6-dev:armhf
+              linux-libc-dev:armhf"
+    if [ "$do_inst_arm" = "1" ]; then
+      if $(dpkg-query -W ${GPP_ARM_PACKAGE} &>/dev/null); then
+        arm_list+=" ${GPP_ARM_PACKAGE}"
+      else
+        if [ "${add_cross_tool_repo}" = "1" ]; then
+          gpg --keyserver pgp.mit.edu --recv-keys ${EM_ARCHIVE_KEY_FINGER}
+          gpg -a --export ${EM_ARCHIVE_KEY_FINGER} | sudo apt-key add -
+          if ! grep "^${EM_REPO}" "${CROSSTOOLS_LIST}" &>/dev/null; then
+            echo "${EM_SOURCE}" | sudo tee -a "${CROSSTOOLS_LIST}" >/dev/null
+          fi
+          arm_list+=" ${GPP_ARM_PACKAGE}"
+        else
+          echo "The Debian Cross-toolchains repository is necessary to"
+          echo "cross-compile Chromium for arm."
+          echo "Rerun with --add-deb-cross-tool-repo to have it added for you."
+        fi
+      fi
+    fi
+    ;;
+  # All necessary ARM packages are available on the default repos on
+  # Debian 9 and later.
+  *)
+    arm_list="libc6-dev-armhf-cross
+              linux-libc-dev-armhf-cross
+              ${GPP_ARM_PACKAGE}"
+    ;;
+esac
+# Work around for dependency issue Ubuntu/Trusty: http://crbug.com/435056
+case $distro_codename in
+  trusty)
+    arm_list+=" g++-4.8-multilib-arm-linux-gnueabihf
+                gcc-4.8-multilib-arm-linux-gnueabihf"
+    ;;
+  xenial|artful|bionic)
+    arm_list+=" g++-5-multilib-arm-linux-gnueabihf
+                gcc-5-multilib-arm-linux-gnueabihf
+                gcc-arm-linux-gnueabihf"
+    ;;
+esac
+# Packages to build NaCl, its toolchains, and its ports.
+naclports_list="ant autoconf bison cmake gawk intltool xutils-dev xsltproc"
+nacl_list="\
+  g++-mingw-w64-i686
+  lib32z1-dev
+  libasound2:i386
+  libcap2:i386
+  libelf-dev:i386
+  libfontconfig1:i386
+  libglib2.0-0:i386
+  libgpm2:i386
+  libgtk-3-0:i386
+  libncurses5:i386
+  lib32ncurses5-dev
+  libnss3:i386
+  libpango1.0-0:i386
+  libssl-dev:i386
+  libtinfo-dev
+  libtinfo-dev:i386
+  libtool
+  libuuid1:i386
+  libxcomposite1:i386
+  libxcursor1:i386
+  libxdamage1:i386
+  libxi6:i386
+  libxrandr2:i386
+  libxss1:i386
+  libxtst6:i386
+  texinfo
+  xvfb
+  ${naclports_list}
+"
+if package_exists libssl1.1; then
+  nacl_list="${nacl_list} libssl1.1:i386"
+elif package_exists libssl1.0.2; then
+  nacl_list="${nacl_list} libssl1.0.2:i386"
+else
+  nacl_list="${nacl_list} libssl1.0.0:i386"
+fi
+# Some package names have changed over time
+if package_exists libpng16-16; then
+  lib_list="${lib_list} libpng16-16"
+else
+  lib_list="${lib_list} libpng12-0"
+fi
+if package_exists libnspr4; then
+  lib_list="${lib_list} libnspr4 libnss3"
+else
+  lib_list="${lib_list} libnspr4-0d libnss3-1d"
+fi
+if package_exists libjpeg-dev; then
+  dev_list="${dev_list} libjpeg-dev"
+else
+  dev_list="${dev_list} libjpeg62-dev"
+fi
+if package_exists libudev1; then
+  dev_list="${dev_list} libudev1"
+  nacl_list="${nacl_list} libudev1:i386"
+else
+  dev_list="${dev_list} libudev0"
+  nacl_list="${nacl_list} libudev0:i386"
+fi
+if package_exists libbrlapi0.6; then
+  dev_list="${dev_list} libbrlapi0.6"
+else
+  dev_list="${dev_list} libbrlapi0.5"
+fi
+if package_exists apache2.2-bin; then
+  dev_list="${dev_list} apache2.2-bin"
+else
+  dev_list="${dev_list} apache2-bin"
+fi
+if package_exists libav-tools; then
+  dev_list="${dev_list} libav-tools"
+fi
+if package_exists php7.2-cgi; then
+  dev_list="${dev_list} php7.2-cgi libapache2-mod-php7.2"
+elif package_exists php7.1-cgi; then
+  dev_list="${dev_list} php7.1-cgi libapache2-mod-php7.1"
+elif package_exists php7.0-cgi; then
+  dev_list="${dev_list} php7.0-cgi libapache2-mod-php7.0"
+else
+  dev_list="${dev_list} php5-cgi libapache2-mod-php5"
+fi
+# Some packages are only needed if the distribution actually supports
+# installing them.
+if package_exists appmenu-gtk; then
+  lib_list="$lib_list appmenu-gtk"
+fi
+# Cross-toolchain strip is needed for building the sysroots.
+if package_exists binutils-arm-linux-gnueabihf; then
+  dev_list="${dev_list} binutils-arm-linux-gnueabihf"
+fi
+if package_exists binutils-aarch64-linux-gnu; then
+  dev_list="${dev_list} binutils-aarch64-linux-gnu"
+fi
+if package_exists binutils-mipsel-linux-gnu; then
+  dev_list="${dev_list} binutils-mipsel-linux-gnu"
+fi
+if package_exists binutils-mips64el-linux-gnuabi64; then
+  dev_list="${dev_list} binutils-mips64el-linux-gnuabi64"
+fi
+# When cross building for arm/Android on 64-bit systems the host binaries
+# that are part of v8 need to be compiled with -m32 which means
+# that basic multilib support is needed.
+if file -L /sbin/init | grep -q 'ELF 64-bit'; then
+  # gcc-multilib conflicts with the arm cross compiler (at least in trusty) but
+  # g++-X.Y-multilib gives us the 32-bit support that we need. Find out the
+  # appropriate value of X and Y by seeing what version the current
+  # distribution's g++-multilib package depends on.
+  multilib_package=$(apt-cache depends g++-multilib --important | \
+      grep -E --color=never --only-matching '\bg\+\+-[0-9.]+-multilib\b')
+  lib32_list="$lib32_list $multilib_package"
+fi
+if [ "$do_inst_syms" = "1" ]; then
+  echo "Including debugging symbols."
+  # Debian is in the process of transitioning to automatic debug packages, which
+  # have the -dbgsym suffix (https://wiki.debian.org/AutomaticDebugPackages).
+  # Untransitioned packages have the -dbg suffix.  And on some systems, neither
+  # will be available, so exclude the ones that are missing.
+  dbg_package_name() {
+    if package_exists "$1-dbgsym"; then
+      echo "$1-dbgsym"
+    elif package_exists "$1-dbg"; then
+      echo "$1-dbg"
+    fi
+  }
+  for package in "${common_lib_list}"; do
+    dbg_list="$dbg_list $(dbg_package_name ${package})"
+  done
+  # Debugging symbols packages not following common naming scheme
+  if [ "$(dbg_package_name libstdc++6)" == "" ]; then
+    if package_exists libstdc++6-8-dbg; then
+      dbg_list="${dbg_list} libstdc++6-8-dbg"
+    elif package_exists libstdc++6-7-dbg; then
+      dbg_list="${dbg_list} libstdc++6-7-dbg"
+    elif package_exists libstdc++6-6-dbg; then
+      dbg_list="${dbg_list} libstdc++6-6-dbg"
+    elif package_exists libstdc++6-5-dbg; then
+      dbg_list="${dbg_list} libstdc++6-5-dbg"
+    elif package_exists libstdc++6-4.9-dbg; then
+      dbg_list="${dbg_list} libstdc++6-4.9-dbg"
+    elif package_exists libstdc++6-4.8-dbg; then
+      dbg_list="${dbg_list} libstdc++6-4.8-dbg"
+    elif package_exists libstdc++6-4.7-dbg; then
+      dbg_list="${dbg_list} libstdc++6-4.7-dbg"
+    elif package_exists libstdc++6-4.6-dbg; then
+      dbg_list="${dbg_list} libstdc++6-4.6-dbg"
+    fi
+  fi
+  if [ "$(dbg_package_name libatk1.0-0)" == "" ]; then
+    dbg_list="$dbg_list $(dbg_package_name libatk1.0)"
+  fi
+  if [ "$(dbg_package_name libpango1.0-0)" == "" ]; then
+    dbg_list="$dbg_list $(dbg_package_name libpango1.0-dev)"
+  fi
+else
+  echo "Skipping debugging symbols."
+  dbg_list=
+fi
+if [ "$do_inst_lib32" = "1" ]; then
+  echo "Including 32-bit libraries."
+else
+  echo "Skipping 32-bit libraries."
+  lib32_list=
+fi
+if [ "$do_inst_arm" = "1" ]; then
+  echo "Including ARM cross toolchain."
+else
+  echo "Skipping ARM cross toolchain."
+  arm_list=
+fi
+if [ "$do_inst_nacl" = "1" ]; then
+  echo "Including NaCl, NaCl toolchain, NaCl ports dependencies."
+else
+  echo "Skipping NaCl, NaCl toolchain, NaCl ports dependencies."
+  nacl_list=
+fi
+filtered_backwards_compatible_list=
+if [ "$do_inst_backwards_compatible" = "1" ]; then
+  echo "Including backwards compatible packages."
+  for package in ${backwards_compatible_list}; do
+    if package_exists ${package}; then
+      filtered_backwards_compatible_list+=" ${package}"
+    fi
+  done
+fi
+# The `sort -r -s -t: -k2` sorts all the :i386 packages to the front, to avoid
+# confusing dpkg-query (crbug.com/446172).
+packages="$(
+  echo "${dev_list} ${lib_list} ${dbg_list} ${lib32_list} ${arm_list}" \
+       "${nacl_list}" ${filtered_backwards_compatible_list} | tr " " "\n" | \
+       sort -u | sort -r -s -t: -k2 | tr "\n" " "
+)"
+if [ 1 -eq "${do_quick_check-0}" ] ; then
+  if ! missing_packages="$(dpkg-query -W -f ' ' ${packages} 2>&1)"; then
+    # Distinguish between packages that actually aren't available to the
+    # system (i.e. not in any repo) and packages that just aren't known to
+    # dpkg (i.e. managed by apt).
+    missing_packages="$(echo "${missing_packages}" | awk '{print $NF}')"
+    not_installed=""
+    unknown=""
+    for p in ${missing_packages}; do
+      if apt-cache show ${p} > /dev/null 2>&1; then
+        not_installed="${p}\n${not_installed}"
+      else
+        unknown="${p}\n${unknown}"
+      fi
+    done
+    if [ -n "${not_installed}" ]; then
+      echo "WARNING: The following packages are not installed:"
+      echo -e "${not_installed}" | sed -e "s/^/  /"
+    fi
+    if [ -n "${unknown}" ]; then
+      echo "WARNING: The following packages are unknown to your system"
+      echo "(maybe missing a repo or need to 'sudo apt-get update'):"
+      echo -e "${unknown}" | sed -e "s/^/  /"
+    fi
+    exit 1
+  fi
+  exit 0
+fi
+if [ "$do_inst_lib32" = "1" ] || [ "$do_inst_nacl" = "1" ]; then
+  sudo dpkg --add-architecture i386
+fi
+sudo apt-get update
+# We initially run "apt-get" with the --reinstall option and parse its output.
+# This way, we can find all the packages that need to be newly installed
+# without accidentally promoting any packages from "auto" to "manual".
+# We then re-run "apt-get" with just the list of missing packages.
+echo "Finding missing packages..."
+# Intentionally leaving $packages unquoted so it's more readable.
+echo "Packages required: " $packages
+echo
+new_list_cmd="sudo apt-get install --reinstall $(echo $packages)"
+if new_list="$(yes n | LANGUAGE=en LANG=C $new_list_cmd)"; then
+  # We probably never hit this following line.
+  echo "No missing packages, and the packages are up to date."
+elif [ $? -eq 1 ]; then
+  # We expect apt-get to have exit status of 1.
+  # This indicates that we cancelled the install with "yes n|".
+  new_list=$(echo "$new_list" |
+    sed -e '1,/The following NEW packages will be installed:/d;s/^  //;t;d')
+  new_list=$(echo "$new_list" | sed 's/ *$//')
+  if [ -z "$new_list" ] ; then
+    echo "No missing packages, and the packages are up to date."
+  else
+    echo "Installing missing packages: $new_list."
+    sudo apt-get install ${do_quietly-} ${new_list}
+  fi
+  echo
+else
+  # An apt-get exit status of 100 indicates that a real error has occurred.
+  # I am intentionally leaving out the '"'s around new_list_cmd,
+  # as this makes it easier to cut and paste the output
+  echo "The following command failed: " ${new_list_cmd}
+  echo
+  echo "It produces the following output:"
+  yes n | $new_list_cmd || true
+  echo
+  echo "You will have to install the above packages yourself."
+  echo
+  exit 100
+fi
+# Install the Chrome OS default fonts. This must go after running
+# apt-get, since install-chromeos-fonts depends on curl.
+if [ "$do_inst_chromeos_fonts" != "0" ]; then
+  echo
+  echo "Installing Chrome OS fonts."
+  dir=`echo $0 | sed -r -e 's/\/[^/]+$//'`
+  if ! sudo $dir/linux/install-chromeos-fonts.py; then
+    echo "ERROR: The installation of the Chrome OS default fonts failed."
+    if [ `stat -f -c %T $dir` == "nfs" ]; then
+      echo "The reason is that your repo is installed on a remote file system."
+    else
+      echo "This is expected if your repo is installed on a remote file system."
+    fi
+    echo "It is recommended to install your repo on a local file system."
+    echo "You can skip the installation of the Chrome OS default founts with"
+    echo "the command line option: --no-chromeos-fonts."
+    exit 1
+  fi
+else
+  echo "Skipping installation of Chrome OS fonts."
+fi
+echo "Installing locales."
+CHROMIUM_LOCALES="da_DK.UTF-8 fr_FR.UTF-8 he_IL.UTF-8 zh_TW.UTF-8"
+LOCALE_GEN=/etc/locale.gen
+if [ -e ${LOCALE_GEN} ]; then
+  OLD_LOCALE_GEN="$(cat /etc/locale.gen)"
+  for CHROMIUM_LOCALE in ${CHROMIUM_LOCALES}; do
+    sudo sed -i "s/^# ${CHROMIUM_LOCALE}/${CHROMIUM_LOCALE}/" ${LOCALE_GEN}
+  done
+  # Regenerating locales can take a while, so only do it if we need to.
+  if (echo "${OLD_LOCALE_GEN}" | cmp -s ${LOCALE_GEN}); then
+    echo "Locales already up-to-date."
+  else
+    sudo locale-gen
+  fi
+else
+  for CHROMIUM_LOCALE in ${CHROMIUM_LOCALES}; do
+    sudo locale-gen ${CHROMIUM_LOCALE}
+  done
+fi
--- a/build/js2c.py
+++ b/build/js2c.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python

 import os
 import subprocess
--- a/build/mac/make_locale_dirs.py
+++ b/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:
--- a/build/npm-run.py
+++ b/build/npm-run.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
 from __future__ import print_function
 import os
 import subprocess
@@ -15,6 +15,12 @@ args = [cmd, "run",
 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(
+        "NPM script '"
+        + sys.argv[2]
+        + "' failed with code '"
+        + str(e.returncode)
+        + "':\n"
+        + e.output
+    )
    sys.exit(e.returncode)
--- a/build/npm.gni
+++ b/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"

--- a/build/profile_toolchain.py
+++ b/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")
--- a/build/strip_framework.py
+++ b/build/strip_framework.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
 import os
 import subprocess
 import sys
--- a/build/webpack/webpack.config.base.js
+++ b/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'
@@ -156,7 +163,7 @@ if ((globalThis.process || binding.process).argv.includes("--profile-electron-in
        setImmediate: false
      },
      optimization: {
-        minimize: env.mode === 'production',
+        minimize: true,
        minimizer: [
          new TerserPlugin({
            terserOptions: {
--- a/build/webpack/webpack.gni
+++ b/build/webpack/webpack.gni
@@ -22,11 +22,6 @@ template("webpack_build") {
               "//electron/typings/internal-electron.d.ts",
             ] + invoker.inputs

-    mode = "development"
-    if (is_official_build) {
-      mode = "production"
-    }
-
    args = [
      "--config",
      rebase_path(invoker.config_file),
@@ -34,9 +29,8 @@ template("webpack_build") {
      "--output-path=" + rebase_path(get_path_info(invoker.out_file, "dir")),
      "--env.buildflags=" +
          rebase_path("$target_gen_dir/buildflags/buildflags.h"),
-      "--env.mode=" + mode,
    ]
-    deps += [ "//electron/buildflags" ]
+    deps += [ "buildflags" ]

    outputs = [ invoker.out_file ]
  }
--- a/build/zip.py
+++ b/build/zip.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
 from __future__ import print_function
 import os
 import subprocess
@@ -31,10 +31,14 @@ 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'
 ]

 def skip_path(dep, dist_zip, target_cpu):
@@ -66,7 +70,7 @@ 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 +97,11 @@ 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__':
--- a/build/zip_libcxx.py
+++ b/build/zip_libcxx.py
@@ -1,47 +0,0 @@
-#!/usr/bin/env python3
-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:]))
--- a/buildflags/BUILD.gn
+++ b/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",
--- a/buildflags/buildflags.gni
+++ b/buildflags/buildflags.gni
@@ -10,6 +10,8 @@ declare_args() {

  enable_osr = true

+  enable_remote_module = true
+
  enable_views_api = true

  enable_pdf_viewer = true
--- a/chromium_src/BUILD.gn
+++ b/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 +14,16 @@ 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/crash_upload_list/crash_upload_list_crashpad.cc",
+    "//chrome/browser/crash_upload_list/crash_upload_list_crashpad.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 +36,6 @@ 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",
@@ -52,36 +44,15 @@ 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/native_window_tracker.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/ssl/tls_deprecation_config.cc",
+    "//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",
@@ -89,10 +60,6 @@ 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",
    ]
  }

@@ -101,52 +68,37 @@ 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/aura/native_window_tracker_aura.cc",
-      "//chrome/browser/ui/aura/native_window_tracker_aura.h",
-      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_aura.cc",
-    ]
-  }
-
  public_deps = [
-    "//chrome/browser:dev_ui_browser_resources",
    "//chrome/common",
    "//chrome/common:version_header",
    "//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",
@@ -174,7 +126,6 @@ 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",
@@ -186,6 +137,62 @@ 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",
@@ -198,31 +205,22 @@ 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",
@@ -230,7 +228,6 @@ static_library("chrome") {
      "//components/services/print_compositor",
      "//components/services/print_compositor/public/cpp",
      "//components/services/print_compositor/public/mojom",
-      "//printing/backend",
    ]

    deps += [
@@ -242,6 +239,8 @@ 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",
      ]
    }
  }
@@ -252,16 +251,8 @@ 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",
@@ -270,20 +261,13 @@ 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",
    ]
  }

@@ -301,18 +285,10 @@ static_library("chrome") {

    if (enable_pdf_viewer) {
      sources += [
-        "//chrome/browser/pdf/chrome_pdf_stream_delegate.cc",
-        "//chrome/browser/pdf/chrome_pdf_stream_delegate.h",
        "//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/browser/plugins/pdf_iframe_navigation_throttle.cc",
-        "//chrome/browser/plugins/pdf_iframe_navigation_throttle.h",
-      ]
-      deps += [
-        "//components/pdf/browser",
-        "//components/pdf/renderer",
+        "//chrome/renderer/pepper/chrome_pdf_print_client.cc",
+        "//chrome/renderer/pepper/chrome_pdf_print_client.h",
      ]
    }
  }
@@ -341,6 +317,15 @@ source_set("plugins") {
    "//chrome/browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.cc",
    "//chrome/browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.h",
  ]
+  deps += [
+    "//media:media_buildflags",
+    "//ppapi/buildflags",
+    "//ppapi/proxy:ipc",
+    "//services/device/public/mojom",
+  ]
+  if (enable_pdf_viewer) {
+    deps += [ "//components/pdf/browser" ]
+  }

  # renderer side
  sources += [
@@ -349,18 +334,23 @@ source_set("plugins") {
    "//chrome/renderer/pepper/pepper_shared_memory_message_filter.cc",
    "//chrome/renderer/pepper/pepper_shared_memory_message_filter.h",
  ]
-
+  if (enable_pdf_viewer) {
+    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",
    "//media:media_buildflags",
-    "//ppapi/buildflags",
    "//ppapi/host",
    "//ppapi/proxy",
    "//ppapi/proxy:ipc",
    "//ppapi/shared_impl",
-    "//services/device/public/mojom",
    "//skia",
-    "//storage/browser",
  ]
 }

--- a/chromium_src/chrome/browser/certificate_manager_model.cc
+++ b/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>

@@ -90,7 +90,7 @@ CertificateManagerModel::~CertificateManagerModel() = default;
 int CertificateManagerModel::ImportFromPKCS12(
    PK11SlotInfo* slot_info,
    const std::string& data,
-    const std::u16string& password,
+    const base::string16& password,
    bool is_extractable,
    net::ScopedCERTCertificateList* imported_certs) {
  return cert_db_->ImportFromPKCS12(slot_info, data, password, is_extractable,
@@ -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);
 }
--- a/chromium_src/chrome/browser/certificate_manager_model.h
+++ b/chromium_src/chrome/browser/certificate_manager_model.h
@@ -2,14 +2,17 @@
 // 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 "base/strings/string16.h"
 #include "net/cert/nss_cert_database.h"

 namespace content {
@@ -30,10 +33,6 @@ 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_; }
@@ -47,7 +46,7 @@ class CertificateManagerModel {
  // Returns a net error code on failure.
  int ImportFromPKCS12(PK11SlotInfo* slot_info,
                       const std::string& data,
-                       const std::u16string& password,
+                       const base::string16& password,
                       bool is_extractable,
                       net::ScopedCERTCertificateList* imported_certs);

@@ -111,6 +110,8 @@ 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_
--- a/chromium_src/chrome/browser/process_singleton.h
+++ b/chromium_src/chrome/browser/process_singleton.h
@@ -0,0 +1,187 @@
+// 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_;               // The HWND_MESSAGE of another browser.
+  base::win::MessageWindow window_;  // The message-only window.
+  bool is_virtualized_;  // Stuck inside Microsoft Softricity VM environment.
+  HANDLE lock_file_;
+  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_;
+  bool listen_on_ready_ = false;
+#endif
+
+  SEQUENCE_CHECKER(sequence_checker_);
+
+  DISALLOW_COPY_AND_ASSIGN(ProcessSingleton);
+};
+
+#endif  // CHROME_BROWSER_PROCESS_SINGLETON_H_
--- a/chromium_src/chrome/browser/process_singleton_posix.cc
+++ b/chromium_src/chrome/browser/process_singleton_posix.cc
--- a/chromium_src/chrome/browser/process_singleton_win.cc
+++ b/chromium_src/chrome/browser/process_singleton_win.cc
@@ -0,0 +1,316 @@
+// 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),
+      is_virtualized_(false),
+      lock_file_(INVALID_HANDLE_VALUE),
+      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;
+}
--- a/chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.cc
+++ b/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"
@@ -40,7 +38,8 @@ void GlobalMenuBarRegistrarX11::OnWindowUnmapped(x11::Window window) {
  live_windows_.erase(window);
 }

-GlobalMenuBarRegistrarX11::GlobalMenuBarRegistrarX11() {
+GlobalMenuBarRegistrarX11::GlobalMenuBarRegistrarX11()
+    : registrar_proxy_(nullptr) {
  // libdbusmenu uses the gio version of dbus; I tried using the code in dbus/,
  // but it looks like that's isn't sharing the bus name with the gio version,
  // even when |connection_type| is set to SHARED.
@@ -51,7 +50,7 @@ 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);
 }

--- a/chromium_src/chrome/browser/ui/views/frame/global_menu_bar_registrar_x11.h
+++ b/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);
@@ -53,11 +48,13 @@ class GlobalMenuBarRegistrarX11 {
                     GObject*,
                     GParamSpec*);

-  GDBusProxy* registrar_proxy_ = nullptr;
+  GDBusProxy* registrar_proxy_;

  // 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_
--- a/default_app/default_app.ts
+++ b/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';

@@ -42,18 +41,19 @@ ipcMain.handle('bootstrap', (event) => {
  return isTrustedSender(event.sender) ? electronPath : null;
 });

-async function createWindow (backgroundColor?: string) {
+async function createWindow () {
  await app.whenReady();

  const options: Electron.BrowserWindowConstructorOptions = {
    width: 960,
    height: 620,
    autoHideMenuBar: true,
-    backgroundColor,
+    backgroundColor: '#2f3241',
    webPreferences: {
      preload: path.resolve(__dirname, 'preload.js'),
      contextIsolation: true,
-      sandbox: true
+      sandbox: true,
+      enableRemoteModule: false
    },
    useContentSize: true,
    show: false
@@ -96,7 +96,7 @@ export const loadURL = async (appUrl: string) => {
 };

 export const loadFile = async (appPath: string) => {
-  mainWindow = await createWindow(appPath === 'index.html' ? '#2f3241' : undefined);
+  mainWindow = await createWindow();
  mainWindow.loadFile(appPath);
  mainWindow.focus();
 };
--- a/default_app/index.html
+++ b/default_app/index.html
@@ -2,7 +2,6 @@

 <head>
  <title>Electron</title>
-  <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script'; trusted-types electron-default-app" />
  <meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src 'sha256-6PH54BfkNq/EMMhUY7nhHf3c+AxloOwfy7hWyT01CM8='; style-src 'self'; img-src 'self'; connect-src 'self'" />
  <link href="./styles.css" type="text/css" rel="stylesheet" />
  <link href="./octicon/build.css" type="text/css" rel="stylesheet" />
--- a/default_app/main.ts
+++ b/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;
  }
 }
--- a/default_app/preload.ts
+++ b/default_app/preload.ts
@@ -1,15 +1,10 @@
-import { ipcRenderer, contextBridge } from 'electron/renderer';
-
-const policy = window.trustedTypes.createPolicy('electron-default-app', {
-  // we trust the SVG contents
-  createHTML: input => input
-});
+import { ipcRenderer, contextBridge } from 'electron';

 async function getOcticonSvg (name: string) {
  try {
    const response = await fetch(`octicon/${name}.svg`);
    const div = document.createElement('div');
-    div.innerHTML = policy.createHTML(await response.text());
+    div.innerHTML = await response.text();
    return div;
  } catch {
    return null;
--- a/docs/README.md
+++ b/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)
@@ -53,17 +59,17 @@ 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)
  * [Mac App Store](tutorial/mac-app-store-submission-guide.md)
  * [Windows Store](tutorial/windows-store-guide.md)
@@ -85,6 +91,11 @@ These individual tutorials expand on topics discussed in the guide above.
 * Electron Releases & Developer Feedback
  * [Versioning Policy](tutorial/electron-versioning.md)
  * [Release Timelines](tutorial/electron-timelines.md)
+* [Packaging App Source Code with asar](tutorial/application-packaging.md)
+  * [Generating asar Archives](tutorial/application-packaging.md#generating-asar-archives)
+  * [Using asar Archives](tutorial/application-packaging.md#using-asar-archives)
+  * [Limitations](tutorial/application-packaging.md#limitations-of-the-node-api)
+  * [Adding Unpacked Files to asar Archives](tutorial/application-packaging.md#adding-unpacked-files-to-asar-archives)
 * [Testing Widevine CDM](tutorial/testing-widevine-cdm.md)

 ---
@@ -105,6 +116,7 @@ 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:

@@ -119,8 +131,6 @@ These individual tutorials expand on topics discussed in the guide above.
 * [ipcMain](api/ipc-main.md)
 * [Menu](api/menu.md)
 * [MenuItem](api/menu-item.md)
-* [MessageChannelMain](api/message-channel-main.md)
-* [MessagePortMain](api/message-port-main.md)
 * [net](api/net.md)
 * [netLog](api/net-log.md)
 * [nativeTheme](api/native-theme.md)
@@ -130,7 +140,6 @@ These individual tutorials expand on topics discussed in the guide above.
 * [protocol](api/protocol.md)
 * [screen](api/screen.md)
 * [session](api/session.md)
-* [ShareMenu](api/share-menu.md)
 * [systemPreferences](api/system-preferences.md)
 * [TouchBar](api/touch-bar.md)
 * [Tray](api/tray.md)
@@ -140,14 +149,15 @@ These individual tutorials expand on topics discussed in the guide above.
 ### Modules for the Renderer Process (Web Page):

 * [contextBridge](api/context-bridge.md)
+* [desktopCapturer](api/desktop-capturer.md)
 * [ipcRenderer](api/ipc-renderer.md)
+* [remote](api/remote.md)
 * [webFrame](api/web-frame.md)

 ### Modules for Both Processes:

 * [clipboard](api/clipboard.md)
 * [crashReporter](api/crash-reporter.md)
-* [desktopCapturer](api/desktop-capturer.md)
 * [nativeImage](api/native-image.md)
 * [shell](api/shell.md)

--- a/docs/api/accelerator.md
+++ b/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

--- a/docs/api/app.md
+++ b/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
@@ -606,10 +646,6 @@ You should seek to use the `steal` option as sparingly as possible.

 Hides all application windows without minimizing them.

-### `app.isHidden()` _macOS_
-
-Returns `boolean` - `true` if the application—including all of its windows—is hidden (e.g. with `Command-H`), `false` otherwise.
-
 ### `app.show()` _macOS_

 Shows application windows after they were hidden. Does not automatically focus
@@ -617,7 +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)`.

@@ -625,11 +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
@@ -637,6 +673,7 @@ Returns `string` - The current application directory.
    * `~/Library/Application Support` on macOS
  * `userData` The directory for storing your app's configuration files, which by
    default it is the `appData` directory appended with your app's name.
+  * `cache`
  * `temp` Temporary directory.
  * `exe` The current executable file.
  * `module` The `libchromiumcontent` library.
@@ -650,16 +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_.
@@ -677,8 +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.
@@ -692,13 +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
@@ -708,7 +745,7 @@ preferred over `name` by Electron.

 ### `app.setName(name)`

-* `name` string
+* `name` String

 Overrides the current application's name.

@@ -716,10 +753,9 @@ Overrides the current application's name.

 ### `app.getLocale()`

-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/+/main:ui/base/l10n/l10n_util.cc).
+Returns `String` - The current application locale. Possible return values are documented [here](locales.md).

-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.
@@ -728,13 +764,13 @@ 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.

@@ -747,15 +783,15 @@ 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.
@@ -778,22 +814,22 @@ 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
@@ -806,11 +842,11 @@ 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.
@@ -821,15 +857,15 @@ 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.
@@ -842,7 +878,7 @@ 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.
@@ -864,8 +900,6 @@ Returns `Object`:

 * `categories` [JumpListCategory[]](structures/jump-list-category.md) | `null` - Array of `JumpListCategory` objects.

-Returns `string`
-
 Sets or removes a custom Jump List for the application, and returns one of the
 following strings:

@@ -895,10 +929,6 @@ re-add a removed item to a custom category earlier than that will result in the
 entire custom category being omitted from the Jump List. The list of removed
 items can be obtained using `app.getJumpListSettings()`.

-**Note:** The maximum length of a Jump List item's `description` property is
-260 characters. Beyond this limit, the item will not be added to the Jump
-List, nor will it be displayed.
-
 Here's a very simple example of creating a custom Jump List:

 ```javascript
@@ -959,11 +989,9 @@ 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,
@@ -988,33 +1016,17 @@ 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...
@@ -1026,7 +1038,7 @@ 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
@@ -1040,10 +1052,10 @@ 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
@@ -1051,7 +1063,7 @@ 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_

@@ -1063,7 +1075,7 @@ 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.

@@ -1072,13 +1084,13 @@ 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.

@@ -1091,69 +1103,14 @@ 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.

 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/+/main: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
+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.disableHardwareAcceleration()`

@@ -1181,7 +1138,7 @@ 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>`

@@ -1224,15 +1181,15 @@ 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_

@@ -1240,14 +1197,14 @@ 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
@@ -1255,43 +1212,43 @@ 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],
@@ -1315,7 +1272,7 @@ 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
@@ -1323,7 +1280,7 @@ 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.
@@ -1339,14 +1296,14 @@ 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.

@@ -1354,7 +1311,7 @@ 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_

@@ -1362,7 +1319,7 @@ 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.

@@ -1385,16 +1342,16 @@ 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
@@ -1430,13 +1387,13 @@ 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.

@@ -1451,7 +1408,7 @@ 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.

@@ -1470,8 +1427,8 @@ 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.
@@ -1488,7 +1445,7 @@ 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
@@ -1499,7 +1456,7 @@ 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
@@ -1507,7 +1464,7 @@ 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`
@@ -1516,33 +1473,31 @@ 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.
--- a/docs/api/auto-updater.md
+++ b/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
--- a/docs/api/browser-view.md
+++ b/docs/api/browser-view.md
@@ -1,33 +1,26 @@
-# BrowserView
-
-A `BrowserView` can be used to embed additional web content into a
-[`BrowserWindow`](browser-window.md). It is like a child window, except that it is positioned
-relative to its owning window. It is meant to be an alternative to the
-`webview` tag.
-
 ## Class: BrowserView

 > Create and control views.

 Process: [Main](../glossary.md#main-process)

-This module cannot be used until the `ready` event of the `app`
-module is emitted.
+A `BrowserView` can be used to embed additional web content into a
+[`BrowserWindow`](browser-window.md). It is like a child window, except that it is positioned
+relative to its owning window. It is meant to be an alternative to the
+`webview` tag.

 ### Example

 ```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_
@@ -50,13 +43,13 @@ 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_
@@ -73,31 +66,5 @@ 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.
--- a/docs/api/browser-window-proxy.md
+++ b/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.
--- a/docs/api/browser-window.md
+++ b/docs/api/browser-window.md
--- a/docs/api/client-request.md
+++ b/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
@@ -175,17 +174,17 @@ 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
 listed below. More information on restricted headers can be found in
-[Chromium's header utils](https://source.chromium.org/chromium/chromium/src/+/main:services/network/public/cpp/header_util.cc;drc=1562cab3f1eda927938f8f4a5a91991fefde66d3;bpv=1;bpt=1;l=22).
+[Chromium's header utils](https://source.chromium.org/chromium/chromium/src/+/master:services/network/public/cpp/header_util.cc;drc=1562cab3f1eda927938f8f4a5a91991fefde66d3;bpv=1;bpt=1;l=22).

 * `Content-Length`
 * `Host`
@@ -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
--- a/docs/api/clipboard.md
+++ b/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.

--- a/docs/api/command-line-switches.md
+++ b/docs/api/command-line-switches.md
@@ -61,28 +61,24 @@ 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`.
-
-### --force-fieldtrials=`trials`
-
-Field trials to be forcefully enabled or disabled.
-
-For example: `WebRTC-Audio-Red-For-Opus/Enabled/`
+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.

 ### --host-rules=`rules`

@@ -129,37 +125,10 @@ 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 +136,7 @@ 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 +179,6 @@ 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 +191,6 @@ 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 +238,4 @@ 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/+/main: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/+/main:base/logging.h?q=logging::LogSeverity&ss=chromium
--- a/docs/api/command-line.md
+++ b/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.
--- a/docs/api/content-tracing.md
+++ b/docs/api/content-tracing.md
@@ -32,11 +32,11 @@ 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
-categories](https://chromium.googlesource.com/chromium/src/+/main/base/trace_event/builtin_categories.h).
+categories](https://chromium.googlesource.com/chromium/src/+/master/base/trace_event/builtin_categories.h).

 > **NOTE:** Electron adds a non-default tracing category called `"electron"`.
 > This category can be used to capture Electron-specific tracing events.
@@ -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.
--- a/docs/api/context-bridge.md
+++ b/docs/api/context-bridge.md
@@ -33,25 +33,25 @@ page you load in your renderer executes code in this world.

 ### Isolated World

-When `contextIsolation` is enabled in your `webPreferences` (this is the default behavior since Electron 12.0.0), your `preload` scripts run in an
+When `contextIsolation` is enabled in your `webPreferences`, your `preload` scripts run in an
 "Isolated World".  You can read more about context isolation and what it affects in the
-[security](../tutorial/security.md#3-enable-context-isolation) docs.
+[security](../tutorial/security.md#3-enable-context-isolation-for-remote-content) docs.

 ## Methods

 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.
@@ -97,36 +97,15 @@ 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.
-
-### Exposing Node Global Symbols
-
-The `contextBridge` can be used by the preload script to give your renderer access to Node APIs.
-The table of supported types described above also applies to Node APIs that you expose through `contextBridge`.
-Please note that many Node APIs grant access to local system resources.
-Be very cautious about which globals and APIs you expose to untrusted remote content.
-
-```javascript
-const { contextBridge } = require('electron')
-const crypto = require('crypto')
-contextBridge.exposeInMainWorld('nodeCrypto', {
-  sha256sum (data) {
-    const hash = crypto.createHash('sha256')
-    hash.update(data)
-    return hash.digest('hex')
-  }
-})
-```
--- a/docs/api/cookies.md
+++ b/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

--- a/docs/api/crash-reporter.md
+++ b/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 +77,28 @@ The `crashReporter` module has the following methods:
 ### `crashReporter.start(options)`

 * `options` Object
-  * `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
+  * `submitURL` String - URL that crash reports will be sent to as POST.
+  * `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 +150,14 @@ 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 +166,8 @@ 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 +185,37 @@ 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`
--- a/docs/api/debugger.md
+++ b/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.

--- a/docs/api/desktop-capturer.md
+++ b/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.

--- a/docs/api/dialog.md
+++ b/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[]&#32;(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[]&#32;(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
--- a/docs/api/dock.md
+++ b/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.
--- a/docs/api/download-item.md
+++ b/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
--- a/docs/api/environment-variables.md
+++ b/docs/api/environment-variables.md
@@ -118,38 +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).
-
-### `ELECTRON_DEBUG_DRAG_REGIONS`
-
-Adds coloration to draggable regions on [`BrowserView`](./browser-view.md)s on macOS - draggable regions will be colored
-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.
-
-Sample output:
-
-```sh
-Notification created (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
-Notification displayed (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
-Notification activated (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
-Notification replied to (com.github.Electron:notification:EAF7B87C-A113-43D7-8E76-F88EC9D73D44)
-```
+Prints Chrome's internal logging to the console.

 ### `ELECTRON_LOG_ASAR_READS`

--- a/docs/api/extensions.md
+++ b/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:

@@ -99,10 +98,7 @@ Only `chrome.storage.local` is supported; `chrome.storage.sync` and
 The following methods of `chrome.tabs` are supported:

 - `chrome.tabs.sendMessage`
- `chrome.tabs.reload`
 - `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
--- a/docs/api/frameless-window.md
+++ b/docs/api/frameless-window.md
@@ -0,0 +1,185 @@
+# 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).
+* On Windows operating systems, transparent windows will not work when DWM is
+  disabled.
+* 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
--- a/docs/api/global-shortcut.md
+++ b/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
--- a/Show More
+++ b/Show More