Update shell/common/platform_util_linux.cc

Co-authored-by: Charles Kerr <charles@charleskerr.com>

.dockerignore

@@ -1,3 +1,2 @@
 *
 !tools/xvfb-init.sh
-!build/install-build-deps.sh

.env.example

@@ -4,4 +4,3 @@
 APPVEYOR_CLOUD_TOKEN=
 CIRCLE_TOKEN=
 ELECTRON_GITHUB_TOKEN=
-VSTS_TOKEN=

.eslintrc.json

@@ -8,43 +8,45 @@
   "rules": {
     "semi": ["error", "always"],
     "no-var": "error",
-    "no-unused-vars": 0,
-    "no-global-assign": 0,
-    "guard-for-in": 2,
+    "no-unused-vars": "off",
+    "no-global-assign": "off",
+    "guard-for-in": "error",
     "@typescript-eslint/no-unused-vars": ["error", {
       "vars": "all",
       "args": "after-used",
-      "ignoreRestSiblings": false
+      "ignoreRestSiblings": true
     }],
     "prefer-const": ["error", {
       "destructuring": "all"
     }],
     "standard/no-callback-literal": "off",
-    "node/no-deprecated-api": 0
+    "node/no-deprecated-api": "off"
   },
   "parserOptions": {
     "ecmaVersion": 6,
     "sourceType": "module"
   },
-  "globals": {
-    "standardScheme": "readonly",
-    "BUILDFLAG": "readonly",
-    "ENABLE_DESKTOP_CAPTURER": "readonly",
-    "ENABLE_REMOTE_MODULE": "readonly",
-    "ENABLE_VIEWS_API": "readonly"
-  },
   "overrides": [
     {
       "files": "*.js",
       "rules": {
-          "@typescript-eslint/no-unused-vars": "off"
+        "@typescript-eslint/no-unused-vars": "off"
+      }
+    },
+    {
+      "files": "*.ts",
+      "rules": {
+        "no-undef": "off",
+        "no-redeclare": "off",
+        "@typescript-eslint/no-redeclare": ["error"],
+        "no-use-before-define": "off"
       }
     },
     {
       "files": "*.d.ts",
       "rules": {
-          "no-useless-constructor": "off",
-          "@typescript-eslint/no-unused-vars": "off"
+        "no-useless-constructor": "off",
+        "@typescript-eslint/no-unused-vars": "off"
       }
     }
   ]

.gitattributes

@@ -2,3 +2,13 @@
 # files to be checked out with LF endings even if core.autocrlf is true.
 *.patch text eol=lf
 patches/**/.patches merge=union
+
+# Source code and markdown files should always use LF as line ending.
+*.cc text eol=lf
+*.mm text eol=lf
+*.h text eol=lf
+*.js text eol=lf
+*.ts text eol=lf
+*.py text eol=lf
+*.ps1 text eol=lf
+*.md text eol=lf

.github/CODEOWNERS

@@ -10,3 +10,9 @@ DEPS                                    @electron/wg-upgrades
 # Releases WG
 /npm/                                   @electron/wg-releases
 /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

.github/ISSUE_TEMPLATE/Bug_report.md

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

.github/ISSUE_TEMPLATE/Feature_request.md

@@ -1,27 +0,0 @@
----
-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. -->

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,77 @@
+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/master/CONTRIBUTING.md) for this project.
+        required: true
+      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/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: input
+  attributes:
+    label: Electron Version
+    description: What version of Electron are you using?
+    placeholder: 12.0.0
+  validations:
+    required: true
+- type: dropdown
+  attributes:
+    label: What operating system are you using?
+    options:
+      - Windows
+      - macOS
+      - Ubuntu
+      - Other Linux
+      - Other (specify below)
+  validations:
+    required: true
+- type: input
+  attributes:
+    label: Operating System Version
+    description: What operating system version are you using? On Windows, click Start button > Settings > System > About. On macOS, click the Apple Menu > About This Mac. On Linux, use lsb_release or uname -a.
+    placeholder: "e.g. Windows 10 version 1909, macOS Catalina 10.15.7, or Ubuntu 20.04"
+  validations:
+    required: true
+- type: dropdown
+  attributes:
+    label: What arch are you using?
+    options:
+      - x64
+      - ia32
+      - arm64 (including Apple Silicon)
+      - Other (specify below)
+  validations:
+    required: true
+- type: input
+  attributes:
+    label: Last Known Working Electron version
+    description: What is the last version of Electron this worked in, if applicable?
+    placeholder: 11.0.0
+- type: textarea
+  attributes:
+    label: Expected Behavior
+    description: A clear and concise description of what you expected to happen.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Actual Behavior
+    description: A clear description of what actually happens.
+  validations:
+    required: true
+- type: input
+  attributes:
+    label: Testcase Gist URL
+    description: If you can reproduce the issue in a standalone test case, please use [Electron Fiddle](https://github.com/electron/fiddle) to create one and to publish it as a [GitHub gist](https://gist.github.com) and put the gist URL here. This is **the best way** to ensure this issue is triaged quickly.
+    placeholder: https://gist.github.com/...
+- type: textarea
+  attributes:
+    label: Additional Information
+    description: If your problem needs further explanation, or if the issue you're seeing cannot be reproduced in a gist, please add more information here.

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,40 @@
+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/master/CONTRIBUTING.md) for this project.
+        required: true
+      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/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: true

.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.md

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

.github/ISSUE_TEMPLATE/mac_app_store_private_api_rejection.yml

@@ -0,0 +1,30 @@
+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/master/CONTRIBUTING.md) for this project.
+        required: true
+      - label: I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+        required: true
+- type: input
+  attributes:
+    label: Electron Version
+    description: What version of Electron are you using?
+    placeholder: 12.0.0
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Rejection Email
+    description: Paste the contents of your rejection email here, censoring any private information such as app names.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Additional Information
+    description: Add any other context about the problem here.

.github/PULL_REQUEST_TEMPLATE.md

@@ -13,7 +13,6 @@ Contributors guide: https://github.com/electron/electron/blob/master/CONTRIBUTIN
 - [ ] `npm test` passes
 - [ ] tests are [changed or added](https://github.com/electron/electron/blob/master/docs/development/testing.md)
 - [ ] relevant documentation is changed or added
-- [ ] PR title follows semantic [commit guidelines](https://github.com/electron/electron/blob/master/docs/development/pull-requests.md#commit-message-guidelines)
 - [ ] [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).
 
 #### Release Notes

.github/config.yml

@@ -36,5 +36,6 @@ authorizedUsers:
   - loc
   - MarshallOfSound
   - miniak
+  - mlaurencin
   - nornagon
   - zcbenz

.github/semantic.yml

@@ -0,0 +1,2 @@
+# Always validate the PR title, and ignore the commits
+titleOnly: true

.gitignore

@@ -17,24 +17,6 @@
 *.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
@@ -55,7 +37,7 @@ electron.d.ts
 spec/.hash
 
 # Eslint Cache
-.eslintcache
+.eslintcache*
 
 # Generated native addon files
 /spec-main/fixtures/native-addon/echo/build/
@@ -65,4 +47,9 @@ ts-gen
 
 # Used to accelerate CI builds
 .depshash
-.depshash-target
+.depshash-target
+
+# Used to accelerate builds after sync
+patches/mtime-cache.json
+
+spec/fixtures/logo.png

.gitmodules

@@ -1,6 +0,0 @@
-[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

.husky/.gitignore

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

.husky/pre-commit

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

.husky/pre-push

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

.markdownlint.autofix.json

@@ -0,0 +1,6 @@
+{
+  "default": false,
+  "no-trailing-spaces": {
+    "br_spaces": 0
+  }
+}

.markdownlint.json

@@ -0,0 +1,26 @@
+{
+  "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
+}

BUILD.gn

@@ -1,6 +1,7 @@
 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")
@@ -25,6 +26,8 @@ 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")
@@ -32,6 +35,10 @@ 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) {
@@ -49,6 +56,10 @@ if (is_linux) {
   }
 }
 
+declare_args() {
+  use_prebuilt_v8_context_snapshot = false
+}
+
 branding = read_file("shell/app/BRANDING.json", "json")
 electron_project_name = branding.project_name
 electron_product_name = branding.product_name
@@ -94,6 +105,15 @@ npm_action("build_electron_definitions") {
   outputs = [ "$target_gen_dir/tsc/typings/electron.d.ts" ]
 }
 
+webpack_build("electron_asar_bundle") {
+  deps = [ ":build_electron_definitions" ]
+
+  inputs = auto_filenames.asar_bundle_deps
+
+  config_file = "//electron/build/webpack/webpack.config.asar.js"
+  out_file = "$target_gen_dir/js2c/asar_bundle.js"
+}
+
 webpack_build("electron_browser_bundle") {
   deps = [ ":build_electron_definitions" ]
 
@@ -139,25 +159,18 @@ webpack_build("electron_isolated_renderer_bundle") {
   out_file = "$target_gen_dir/js2c/isolated_bundle.js"
 }
 
-copy("electron_js2c_copy") {
-  sources = [
-    "lib/common/asar.js",
-    "lib/common/asar_init.js",
-  ]
-  outputs = [ "$target_gen_dir/js2c/{{source_file_part}}" ]
-}
-
 action("electron_js2c") {
   deps = [
+    ":electron_asar_bundle",
     ":electron_browser_bundle",
     ":electron_isolated_renderer_bundle",
-    ":electron_js2c_copy",
     ":electron_renderer_bundle",
     ":electron_sandboxed_renderer_bundle",
     ":electron_worker_bundle",
   ]
 
-  webpack_sources = [
+  sources = [
+    "$target_gen_dir/js2c/asar_bundle.js",
     "$target_gen_dir/js2c/browser_init.js",
     "$target_gen_dir/js2c/isolated_bundle.js",
     "$target_gen_dir/js2c/renderer_init.js",
@@ -165,15 +178,10 @@ action("electron_js2c") {
     "$target_gen_dir/js2c/worker_init.js",
   ]
 
-  sources = webpack_sources + [
-              "$target_gen_dir/js2c/asar.js",
-              "$target_gen_dir/js2c/asar_init.js",
-            ]
-
   inputs = sources + [ "//third_party/electron_node/tools/js2c.py" ]
   outputs = [ "$root_gen_dir/electron_natives.cc" ]
 
-  script = "tools/js2c.py"
+  script = "build/js2c.py"
   args = [ rebase_path("//third_party/electron_node") ] +
          rebase_path(outputs, root_build_dir) +
          rebase_path(sources, root_build_dir)
@@ -183,7 +191,6 @@ target_gen_default_app_js = "$target_gen_dir/js/default_app"
 
 typescript_build("default_app_js") {
   deps = [ ":build_electron_definitions" ]
-  type_root = rebase_path("$target_gen_dir/tsc/electron/typings")
 
   sources = filenames.default_app_ts_sources
 
@@ -265,21 +272,6 @@ if (is_linux) {
   }
 }
 
-source_set("manifests") {
-  sources = [
-    "//electron/shell/app/manifests.cc",
-    "//electron/shell/app/manifests.h",
-  ]
-
-  include_dirs = [ "//electron" ]
-
-  deps = [
-    "//electron/shell/common/api:mojo",
-    "//printing/buildflags",
-    "//services/service_manager/public/cpp",
-  ]
-}
-
 npm_action("electron_version_args") {
   script = "generate-version-json"
 
@@ -302,6 +294,19 @@ templated_file("electron_version_header") {
   args_files = get_target_outputs(":electron_version_args")
 }
 
+action("electron_fuses") {
+  script = "build/fuses/build.py"
+
+  inputs = [ "build/fuses/fuses.json5" ]
+
+  outputs = [
+    "$target_gen_dir/fuses.h",
+    "$target_gen_dir/fuses.cc",
+  ]
+
+  args = rebase_path(outputs)
+}
+
 source_set("electron_lib") {
   configs += [ "//v8:external_startup_data" ]
   configs += [ "//third_party/electron_node:node_internals" ]
@@ -312,9 +317,9 @@ source_set("electron_lib") {
   ]
 
   deps = [
+    ":electron_fuses",
     ":electron_js2c",
     ":electron_version_header",
-    ":manifests",
     ":resources",
     "buildflags",
     "chromium_src:chrome",
@@ -322,31 +327,32 @@ source_set("electron_lib") {
     "shell/common/api:mojo",
     "//base:base_static",
     "//base/allocator:buildflags",
+    "//chrome/app:command_ids",
     "//chrome/app/resources:platform_locale_settings",
-    "//chrome/services/printing/public/mojom",
     "//components/certificate_transparency",
-    "//components/crash/core/app",
     "//components/language/core/browser",
     "//components/net_log",
     "//components/network_hints/browser",
     "//components/network_hints/common:mojo_bindings",
     "//components/network_hints/renderer",
     "//components/network_session_configurator/common",
+    "//components/os_crypt",
     "//components/pref_registry",
     "//components/prefs",
+    "//components/security_state/content",
     "//components/upload_list",
     "//components/user_prefs",
     "//components/viz/host",
     "//components/viz/service",
     "//content/public/browser",
     "//content/public/child",
-    "//content/public/common:service_names",
     "//content/public/gpu",
     "//content/public/renderer",
     "//content/public/utility",
     "//device/bluetooth",
     "//device/bluetooth/public/cpp",
     "//gin",
+    "//media/blink:blink",
     "//media/capture/mojom:video_capture",
     "//media/mojo/mojom",
     "//net:extras",
@@ -362,6 +368,7 @@ source_set("electron_lib") {
     "//services/viz/privileged/mojom/compositing",
     "//skia",
     "//third_party/blink/public:blink",
+    "//third_party/blink/public:blink_devtools_inspector_resources",
     "//third_party/boringssl",
     "//third_party/electron_node:node_lib",
     "//third_party/inspector_protocol:crdtp",
@@ -369,6 +376,7 @@ source_set("electron_lib") {
     "//third_party/libyuv",
     "//third_party/webrtc_overrides:webrtc_component",
     "//third_party/widevine/cdm:headers",
+    "//third_party/zlib/google:zip",
     "//ui/base/idle",
     "//ui/events:dom_keycode_converter",
     "//ui/gl",
@@ -402,41 +410,29 @@ source_set("electron_lib") {
     defines += [ "GDK_DISABLE_DEPRECATION_WARNINGS" ]
   }
 
-  extra_source_filters = []
-  if (!is_linux) {
-    extra_source_filters += [
-      "*\bx/*",
-      "*_x11.h",
-      "*_x11.cc",
-      "*_gtk.h",
-      "*_gtk.cc",
-      "*\blibrary_loaders/*",
-    ]
-  }
-  if (!is_win) {
-    extra_source_filters += [
-      "*\bwin_*.h",
-      "*\bwin_*.cc",
-    ]
-  }
-  if (!is_posix) {
-    extra_source_filters += [
-      "*_posix.cc",
-      "*_posix.h",
-    ]
-  }
-  if (is_mac) {
-    extra_source_filters += [
-      "*_views.cc",
-      "*_views.h",
-      "*\bviews/*",
+  if (!is_mas_build) {
+    deps += [
+      "//components/crash/core/app",
+      "//components/crash/core/browser",
     ]
   }
 
-  set_sources_assignment_filter(
-      sources_assignment_filter + extra_source_filters)
   sources = filenames.lib_sources
-  set_sources_assignment_filter(sources_assignment_filter)
+  if (is_win) {
+    sources += filenames.lib_sources_win
+  }
+  if (is_mac) {
+    sources += filenames.lib_sources_mac
+  }
+  if (is_posix) {
+    sources += filenames.lib_sources_posix
+  }
+  if (is_linux) {
+    sources += filenames.lib_sources_linux
+  }
+  if (!is_mac) {
+    sources += filenames.lib_sources_views
+  }
 
   if (is_component_build) {
     defines += [ "NODE_SHARED_MODE" ]
@@ -450,18 +446,25 @@ source_set("electron_lib") {
   }
 
   if (is_linux) {
-    deps += [ "//components/crash/content/browser" ]
+    deps += [
+      "//build/config/linux/gtk:gtkprint",
+      "//components/crash/content/browser",
+    ]
   }
 
   if (is_mac) {
     deps += [
       "//components/remote_cocoa/app_shim",
+      "//components/remote_cocoa/browser",
       "//content/common:mac_helpers",
-      "//third_party/crashpad/crashpad/client",
       "//ui/accelerated_widget_mac",
     ]
 
-    libs = [
+    if (!is_mas_build) {
+      deps += [ "//third_party/crashpad/crashpad/client" ]
+    }
+
+    frameworks = [
       "AVFoundation.framework",
       "Carbon.framework",
       "LocalAuthentication.framework",
@@ -481,22 +484,30 @@ source_set("electron_lib") {
       sources += [ "shell/browser/api/electron_api_app_mas.mm" ]
       sources -= [ "shell/browser/auto_updater_mac.mm" ]
       defines += [ "MAS_BUILD" ]
+      sources -= [
+        "shell/app/electron_crash_reporter_client.cc",
+        "shell/app/electron_crash_reporter_client.h",
+        "shell/common/crash_keys.cc",
+        "shell/common/crash_keys.h",
+      ]
     } else {
-      libs += [
+      frameworks += [
         "Squirrel.framework",
-        "ReactiveCocoa.framework",
+        "ReactiveObjC.framework",
         "Mantle.framework",
       ]
-      cflags_objcc = [
-        "-F",
-        rebase_path("external_binaries", root_build_dir),
+
+      deps += [
+        "//third_party/squirrel.mac:reactiveobjc_framework+link",
+        "//third_party/squirrel.mac:squirrel_framework+link",
       ]
 
-      # ReactiveCocoa which is used by Squirrel requires using __weak.
-      cflags_objcc += [ "-fobjc-weak" ]
+      # ReactiveObjC which is used by Squirrel requires using __weak.
+      cflags_objcc = [ "-fobjc-weak" ]
     }
   }
   if (is_linux) {
+    libs = [ "xshmfence" ]
     deps += [
       ":libnotify_loader",
       "//build/config/linux/gtk",
@@ -509,13 +520,9 @@ source_set("electron_lib") {
       "//ui/wm",
     ]
     if (use_x11) {
-      deps += [
-        "//ui/gfx/x",
-        "//ui/gtk/x",
-      ]
+      sources += filenames.lib_sources_linux_x11
     }
     configs += [ ":gio_unix" ]
-    configs += [ "//build/config/linux:x11" ]
     defines += [
       # Disable warnings for g_settings_list_schemas.
       "GLIB_DISABLE_DEPRECATION_WARNINGS",
@@ -523,6 +530,16 @@ source_set("electron_lib") {
 
     sources += filenames.lib_sources_nss
     sources += [
+      "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",
+      "shell/browser/ui/gtk/app_indicator_icon_menu.h",
+      "shell/browser/ui/gtk/gtk_status_icon.cc",
+      "shell/browser/ui/gtk/gtk_status_icon.h",
+      "shell/browser/ui/gtk/menu_util.cc",
+      "shell/browser/ui/gtk/menu_util.h",
+      "shell/browser/ui/gtk/status_icon.cc",
+      "shell/browser/ui/gtk/status_icon.h",
       "shell/browser/ui/gtk_util.cc",
       "shell/browser/ui/gtk_util.h",
     ]
@@ -561,7 +578,6 @@ source_set("electron_lib") {
     sources += [
       "shell/browser/osr/osr_host_display_client.cc",
       "shell/browser/osr/osr_host_display_client.h",
-      "shell/browser/osr/osr_host_display_client_mac.mm",
       "shell/browser/osr/osr_render_widget_host_view.cc",
       "shell/browser/osr/osr_render_widget_host_view.h",
       "shell/browser/osr/osr_video_consumer.cc",
@@ -570,8 +586,13 @@ source_set("electron_lib") {
       "shell/browser/osr/osr_view_proxy.h",
       "shell/browser/osr/osr_web_contents_view.cc",
       "shell/browser/osr/osr_web_contents_view.h",
-      "shell/browser/osr/osr_web_contents_view_mac.mm",
     ]
+    if (is_mac) {
+      sources += [
+        "shell/browser/osr/osr_host_display_client_mac.mm",
+        "shell/browser/osr/osr_web_contents_view_mac.mm",
+      ]
+    }
     deps += [
       "//components/viz/service",
       "//services/viz/public/mojom",
@@ -579,15 +600,6 @@ source_set("electron_lib") {
     ]
   }
 
-  if (enable_remote_module) {
-    sources += [
-      "shell/common/api/remote/remote_callback_freer.cc",
-      "shell/common/api/remote/remote_callback_freer.h",
-      "shell/common/api/remote/remote_object_freer.cc",
-      "shell/common/api/remote/remote_object_freer.h",
-    ]
-  }
-
   if (enable_desktop_capturer) {
     if (is_component_build && !is_linux) {
       # On windows the implementation relies on unexported
@@ -612,10 +624,18 @@ 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",
     ]
-    deps += [ "//components/printing/common:mojo_interfaces" ]
+    deps += [
+      "//chrome/services/printing/public/mojom",
+      "//components/printing/common:mojo_interfaces",
+    ]
+    if (is_mac) {
+      deps += [ "//chrome/services/mac_notifications/public/mojom" ]
+    }
   }
 
   if (enable_electron_extensions) {
@@ -625,9 +645,11 @@ source_set("electron_lib") {
       "shell/common/extensions/api",
       "shell/common/extensions/api:extensions_features",
       "//chrome/browser/resources:component_extension_resources",
+      "//components/update_client:update_client",
       "//components/zoom",
       "//extensions/browser",
       "//extensions/browser:core_api_provider",
+      "//extensions/browser/updater",
       "//extensions/common",
       "//extensions/common:core_api_provider",
       "//extensions/renderer",
@@ -644,14 +666,30 @@ source_set("electron_lib") {
   }
   if (enable_pdf_viewer) {
     deps += [
+      "//chrome/browser/resources/pdf:resources",
       "//components/pdf/browser",
       "//components/pdf/renderer",
+      "//pdf:pdf_ppapi",
     ]
     sources += [
       "shell/browser/electron_pdf_web_contents_helper_client.cc",
       "shell/browser/electron_pdf_web_contents_helper_client.h",
     ]
   }
+
+  sources += get_target_outputs(":electron_fuses")
+
+  if (is_win && enable_win_dark_mode_window_ui) {
+    sources += [
+      "shell/browser/win/dark_mode.cc",
+      "shell/browser/win/dark_mode.h",
+    ]
+    libs += [ "uxtheme.lib" ]
+  }
+
+  if (allow_runtime_configurable_key_storage) {
+    defines += [ "ALLOW_RUNTIME_CONFIGURABLE_KEY_STORAGE" ]
+  }
 }
 
 electron_paks("packed_resources") {
@@ -674,6 +712,15 @@ if (is_mac) {
     sources = [ "shell/common/resources/mac/MainMenu.xib" ]
   }
 
+  action("fake_v8_context_snapshot_generator") {
+    script = "build/fake_v8_context_snapshot_generator.py"
+    args = [
+      rebase_path("$root_out_dir/$v8_context_snapshot_filename"),
+      rebase_path("$root_out_dir/fake/$v8_context_snapshot_filename"),
+    ]
+    outputs = [ "$root_out_dir/fake/$v8_context_snapshot_filename" ]
+  }
+
   bundle_data("electron_framework_resources") {
     public_deps = [ ":packed_resources" ]
     sources = []
@@ -684,8 +731,13 @@ if (is_mac) {
     if (v8_use_external_startup_data) {
       public_deps += [ "//v8" ]
       if (use_v8_context_snapshot) {
-        sources += [ "$root_out_dir/v8_context_snapshot.bin" ]
-        public_deps += [ "//tools/v8_context_snapshot" ]
+        if (use_prebuilt_v8_context_snapshot) {
+          sources += [ "$root_out_dir/fake/$v8_context_snapshot_filename" ]
+          public_deps += [ ":fake_v8_context_snapshot_generator" ]
+        } else {
+          sources += [ "$root_out_dir/$v8_context_snapshot_filename" ]
+          public_deps += [ "//tools/v8_context_snapshot" ]
+        }
       } else {
         sources += [ "$root_out_dir/snapshot_blob.bin" ]
       }
@@ -763,8 +815,10 @@ if (is_mac) {
     framework_contents = [
       "Resources",
       "Libraries",
-      "Helpers",
     ]
+    if (!is_mas_build) {
+      framework_contents += [ "Helpers" ]
+    }
     public_deps = [
       ":electron_framework_libraries",
       ":electron_lib",
@@ -788,18 +842,19 @@ if (is_mac) {
 
     include_dirs = [ "." ]
     sources = filenames.framework_sources
-    libs = []
+    frameworks = []
 
     if (enable_osr) {
-      libs += [ "IOSurface.framework" ]
+      frameworks += [ "IOSurface.framework" ]
     }
 
     ldflags = [
-      "-F",
-      rebase_path("external_binaries", root_build_dir),
       "-Wl,-install_name,@rpath/$output_name.framework/$output_name",
       "-rpath",
       "@loader_path/Libraries",
+
+      # Required for exporting all symbols of libuv.
+      "-Wl,-force_load,obj/third_party/electron_node/deps/uv/libuv.a",
     ]
     if (is_component_build) {
       ldflags += [
@@ -847,17 +902,49 @@ if (is_mac) {
     }
   }
 
+  template("stripped_framework") {
+    action(target_name) {
+      assert(defined(invoker.framework))
+
+      script = "//electron/build/strip_framework.py"
+
+      forward_variables_from(invoker, [ "deps" ])
+      inputs = [ "$root_out_dir/" + invoker.framework ]
+      outputs = [ "$target_out_dir/stripped_frameworks/" + invoker.framework ]
+
+      args = rebase_path(inputs) + rebase_path(outputs)
+    }
+  }
+
+  stripped_framework("stripped_mantle_framework") {
+    framework = "Mantle.framework"
+    deps = [ "//third_party/squirrel.mac:mantle_framework" ]
+  }
+
+  stripped_framework("stripped_reactiveobjc_framework") {
+    framework = "ReactiveObjC.framework"
+    deps = [ "//third_party/squirrel.mac:reactiveobjc_framework" ]
+  }
+
+  stripped_framework("stripped_squirrel_framework") {
+    framework = "Squirrel.framework"
+    deps = [ "//third_party/squirrel.mac:squirrel_framework" ]
+  }
+
   bundle_data("electron_app_framework_bundle_data") {
     sources = [ "$root_out_dir/$electron_framework_name.framework" ]
     if (!is_mas_build) {
-      sources += [
-        "external_binaries/Mantle.framework",
-        "external_binaries/ReactiveCocoa.framework",
-        "external_binaries/Squirrel.framework",
-      ]
+      sources += get_target_outputs(":stripped_mantle_framework") +
+                 get_target_outputs(":stripped_reactiveobjc_framework") +
+                 get_target_outputs(":stripped_squirrel_framework")
     }
     outputs = [ "{{bundle_contents_dir}}/Frameworks/{{source_file_part}}" ]
-    public_deps = [ ":electron_framework+link" ]
+    public_deps = [
+      ":electron_framework+link",
+      ":stripped_mantle_framework",
+      ":stripped_reactiveobjc_framework",
+      ":stripped_squirrel_framework",
+    ]
 
     foreach(helper_params, content_mac_helpers) {
       sources +=
@@ -870,7 +957,7 @@ if (is_mac) {
     output_name = electron_login_helper_name
     sources = filenames.login_helper_sources
     include_dirs = [ "." ]
-    libs = [ "AppKit.framework" ]
+    frameworks = [ "AppKit.framework" ]
     info_plist = "shell/app/resources/mac/loginhelper-Info.plist"
     extra_substitutions =
         [ "ELECTRON_BUNDLE_ID=$electron_mac_bundle_id.loginhelper" ]
@@ -927,6 +1014,9 @@ if (is_mac) {
     deps = [
       ":electron_app_framework_bundle_data",
       ":electron_app_resources",
+      ":electron_fuses",
+      "//base",
+      "//electron/buildflags",
     ]
     if (is_mas_build) {
       deps += [ ":electron_login_helper_app" ]
@@ -995,13 +1085,16 @@ if (is_mac) {
 
     group("electron_symbols") {
       deps = [
-        ":crashpad_handler_syms",
         ":electron_app_syms",
         ":electron_framework_syms",
         ":swiftshader_egl_syms",
         ":swiftshader_gles_syms",
       ]
 
+      if (!is_mas_build) {
+        deps += [ ":crashpad_handler_syms" ]
+      }
+
       foreach(helper_params, content_mac_helpers) {
         _helper_target = helper_params[0]
         deps += [ ":electron_helper_syms_${_helper_target}" ]
@@ -1052,7 +1145,9 @@ if (is_mac) {
       data += [ "$root_out_dir/resources/default_app.asar" ]
     }
 
-    public_deps = [ "//tools/v8_context_snapshot:v8_context_snapshot" ]
+    if (use_v8_context_snapshot) {
+      public_deps = [ "//tools/v8_context_snapshot:v8_context_snapshot" ]
+    }
 
     if (is_win) {
       sources += [
@@ -1066,22 +1161,33 @@ if (is_mac) {
         "//components/crash/core/app:run_as_crashpad_handler",
       ]
 
+      ldflags = []
+
       libs = [
         "comctl32.lib",
         "uiautomationcore.lib",
         "wtsapi32.lib",
       ]
 
-      configs += [ "//build/config/win:windowed" ]
-
-      ldflags = [
-        # Windows 7 doesn't have these DLLs.
-        # TODO: are there other DLLs we need to list here to be win7
-        # compatible?
-        "/DELAYLOAD:api-ms-win-core-winrt-l1-1-0.dll",
-        "/DELAYLOAD:api-ms-win-core-winrt-string-l1-1-0.dll",
+      configs -= [ "//build/config/win:console" ]
+      configs += [
+        "//build/config/win:windowed",
+        "//build/config/win:delayloads",
       ]
 
+      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
+        # those in the Windows thread pool, and others) whose stack size we can
+        # only control through this setting. Because Chrome's main thread needs
+        # a minimum 1.5 MiB stack, the main thread (in 32-bit builds only) uses
+        # fibers to switch to a 1.5 MiB stack before running any other code.
+        ldflags += [ "/STACK:0x80000" ]
+      } else {
+        # Increase the initial stack size. The default is 1MB, this is 8MB.
+        ldflags += [ "/STACK:0x800000" ]
+      }
+
       # This is to support renaming of electron.exe. node-gyp has hard-coded
       # executable names which it will recognise as node. This module definition
       # file claims that the electron executable is in fact named "node.exe",
@@ -1094,7 +1200,14 @@ if (is_mac) {
       ]
     }
     if (is_linux) {
-      ldflags = [ "-pie" ]
+      ldflags = [
+        "-pie",
+
+        # Required for exporting all symbols of libuv.
+        "-Wl,--whole-archive",
+        "obj/third_party/electron_node/deps/uv/libuv.a",
+        "-Wl,--no-whole-archive",
+      ]
 
       if (!is_component_build && is_component_ffmpeg) {
         configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
@@ -1160,18 +1273,6 @@ test("shell_browser_ui_unittests") {
     "//ui/base",
     "//ui/strings",
   ]
-
-  if (is_mac) {
-    # Resolve paths owing to different test executable locations
-    ldflags = [
-      "-F",
-      rebase_path("external_binaries", root_build_dir),
-      "-rpath",
-      "@loader_path",
-      "-rpath",
-      "@executable_path/" + rebase_path("external_binaries", root_build_dir),
-    ]
-  }
 }
 
 template("dist_zip") {
@@ -1200,13 +1301,18 @@ 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",
            ]
   }
 }
@@ -1269,10 +1375,13 @@ dist_zip("electron_chromedriver_zip") {
 
 mksnapshot_deps = [
   ":licenses",
-  "//tools/v8_context_snapshot:v8_context_snapshot_generator($v8_snapshot_toolchain)",
   "//v8:mksnapshot($v8_snapshot_toolchain)",
 ]
 
+if (use_v8_context_snapshot) {
+  mksnapshot_deps += [ "//tools/v8_context_snapshot:v8_context_snapshot_generator($v8_snapshot_toolchain)" ]
+}
+
 group("electron_mksnapshot") {
   public_deps = mksnapshot_deps
 }
@@ -1294,6 +1403,43 @@ dist_zip("hunspell_dictionaries_zip") {
   outputs = [ "$root_build_dir/hunspell_dictionaries.zip" ]
 }
 
+copy("libcxx_headers") {
+  sources = libcxx_headers + libcxx_licenses
+  outputs = [ "$target_gen_dir/electron_libcxx_include/{{source_root_relative_dir}}/{{source_file_part}}" ]
+}
+
+dist_zip("libcxx_headers_zip") {
+  data_deps = [ ":libcxx_headers" ]
+  flatten = true
+  flatten_relative_to = rebase_path(
+          "$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 = [ "$target_gen_dir/electron_libcxxabi_include/{{source_root_relative_dir}}/{{source_file_part}}" ]
+}
+
+dist_zip("libcxxabi_headers_zip") {
+  data_deps = [ ":libcxxabi_headers" ]
+  flatten = true
+  flatten_relative_to = rebase_path(
+          "$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" ]
 }

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
 

CONTRIBUTING.md

@@ -29,7 +29,7 @@ _If an issue has been closed and you still feel it's relevant, feel free to ping
 ### 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.
@@ -47,17 +47,17 @@ dependencies, and tools contained in the `electron/electron` repository.
   * [Step 1: Fork](https://electronjs.org/docs/development/pull-requests#step-1-fork)
   * [Step 2: Build](https://electronjs.org/docs/development/pull-requests#step-2-build)
   * [Step 3: Branch](https://electronjs.org/docs/development/pull-requests#step-3-branch)
-* [The Process of Making Changes](https://electronjs.org/docs/development/pull-requests#the-process-of-making-changes)
+* [Making Changes](https://electronjs.org/docs/development/pull-requests#making-changes)
   * [Step 4: Code](https://electronjs.org/docs/development/pull-requests#step-4-code)
   * [Step 5: Commit](https://electronjs.org/docs/development/pull-requests#step-5-commit)
     * [Commit message guidelines](https://electronjs.org/docs/development/pull-requests#commit-message-guidelines)
   * [Step 6: Rebase](https://electronjs.org/docs/development/pull-requests#step-6-rebase)
   * [Step 7: Test](https://electronjs.org/docs/development/pull-requests#step-7-test)
   * [Step 8: Push](https://electronjs.org/docs/development/pull-requests#step-8-push)
-  * [Step 8: Opening the Pull Request](https://electronjs.org/docs/development/pull-requests#step-8-opening-the-pull-request)
-  * [Step 9: Discuss and Update](#step-9-discuss-and-update)
+  * [Step 9: Opening the Pull Request](https://electronjs.org/docs/development/pull-requests#step-9-opening-the-pull-request)
+  * [Step 10: Discuss and Update](https://electronjs.org/docs/development/pull-requests#step-10-discuss-and-update)
     * [Approval and Request Changes Workflow](https://electronjs.org/docs/development/pull-requests#approval-and-request-changes-workflow)
-  * [Step 10: Landing](https://electronjs.org/docs/development/pull-requests#step-10-landing)
+  * [Step 11: Landing](https://electronjs.org/docs/development/pull-requests#step-11-landing)
   * [Continuous Integration Testing](https://electronjs.org/docs/development/pull-requests#continuous-integration-testing)
 
 ## Style Guides
@@ -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)

DEPS

@@ -5,29 +5,30 @@ gclient_gn_args = [
   'checkout_android_native_support',
   'checkout_libaom',
   'checkout_nacl',
+  'checkout_pgo_profiles',
   'checkout_oculus_sdk',
   'checkout_openxr',
-  'checkout_google_benchmark'
+  'checkout_google_benchmark',
+  'mac_xcode_version',
 ]
 
 vars = {
   'chromium_version':
-    '17da1064b910f4170320ff37e971064916aed1dc',
+    '93.0.4536.0',
   'node_version':
-    'v12.16.3',
+    'v14.17.0',
   'nan_version':
-    '2c4ee8a32a299eada3cd6e468bbd0a473bfea96d',
+    'v2.14.2',
+  'squirrel.mac_version':
+    'cdc0729c8bf8576bfef18629186e1e9ecf1b0d9f',
 
-  'boto_version': 'f7574aa6cc2c819430c1f05e9a1a1a666ef8169b',
   'pyyaml_version': '3.12',
-  'requests_version': 'e4d59bedfd3c7f4f254f4f5d036587bcd8152458',
 
-  'boto_git': 'https://github.com/boto',
   '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',
 
   # KEEP IN SYNC WITH utils.js FILE
   'yarn_version': '1.15.2',
@@ -35,27 +36,25 @@ vars = {
   # To be able to build clean Chromium from sources.
   'apply_patches': True,
 
-  # Python interface to Amazon Web Services. Is used for releases only.
-  'checkout_boto': False,
+  # To use an mtime cache for patched files to speed up builds.
+  'use_mtime_cache': True,
 
   # To allow in-house builds to checkout those manually.
   'checkout_chromium': True,
   'checkout_node': True,
   'checkout_nan': True,
+  'checkout_pgo_profiles': True,
 
   # It's only needed to parse the native tests configurations.
   'checkout_pyyaml': False,
 
-  # Python "requests" module is used for releases only.
-  'checkout_requests': False,
+  'use_rts': False,
+
+  'mac_xcode_version': 'default',
 
   # 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':
@@ -72,6 +71,8 @@ vars = {
     False,
   'checkout_google_benchmark':
     False,
+  'checkout_clang_tidy':
+    True,
 }
 
 deps = {
@@ -87,71 +88,76 @@ deps = {
     'url': (Var("nodejs_git")) + '/node.git@' + (Var("node_version")),
     'condition': 'checkout_node and process_deps',
   },
-  'src/electron/vendor/pyyaml': {
+  'src/third_party/pyyaml': {
     'url': (Var("yaml_git")) + '/pyyaml.git@' + (Var("pyyaml_version")),
     'condition': 'checkout_pyyaml and process_deps',
   },
-  'src/electron/vendor/boto': {
-    'url': Var('boto_git') + '/boto.git' + '@' +  Var('boto_version'),
-    'condition': 'checkout_boto and process_deps',
+  'src/third_party/squirrel.mac': {
+    'url': Var("squirrel_git") + '/Squirrel.Mac.git@' + Var("squirrel.mac_version"),
+    'condition': '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/vendor/ReactiveObjC': {
+    'url': 'https://github.com/ReactiveCocoa/ReactiveObjC.git@74ab5baccc6f7202c8ac69a8d1e152c29dc1ea76',
+    'condition': 'process_deps'
   },
+  'src/third_party/squirrel.mac/vendor/Mantle': {
+    'url': 'https://github.com/Mantle/Mantle.git@78d3966b3c331292ea29ec38661b25df0a245948',
+    'condition': 'process_deps',
+  }
 }
 
+pre_deps_hooks = [
+  {
+    'name': 'generate_mtime_cache',
+    'condition': '(checkout_chromium and apply_patches and use_mtime_cache) and process_deps',
+    'pattern': 'src/electron',
+    'action': [
+      'python3',
+      'src/electron/script/patches-mtime-cache.py',
+      'generate',
+      '--cache-file',
+      'src/electron/patches/mtime-cache.json',
+      '--patches-config',
+      'src/electron/patches/config.json',
+    ],
+  },
+]
+
 hooks = [
   {
     'name': 'patch_chromium',
     'condition': '(checkout_chromium and apply_patches) and process_deps',
     'pattern': 'src/electron',
     'action': [
-      'python',
+      'python3',
       'src/electron/script/apply_all_patches.py',
       'src/electron/patches/config.json',
     ],
   },
   {
-    'name': 'electron_external_binaries',
-    'pattern': 'src/electron/script/update-external-binaries.py',
-    'condition': 'download_external_binaries',
+    'name': 'apply_mtime_cache',
+    'condition': '(checkout_chromium and apply_patches and use_mtime_cache) and process_deps',
+    'pattern': 'src/electron',
     'action': [
       'python3',
-      'src/electron/script/update-external-binaries.py',
+      'src/electron/script/patches-mtime-cache.py',
+      'apply',
+      '--cache-file',
+      'src/electron/patches/mtime-cache.json',
     ],
   },
   {
     'name': 'electron_npm_deps',
     'pattern': 'src/electron/package.json',
     'action': [
-      'python',
+      'python3',
       '-c',
-      '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_boto',
-    'pattern': 'src/electron',
-    'condition': 'checkout_boto and process_deps',
-    'action': [
-      'python',
-      '-c',
-      'import os, subprocess; os.chdir(os.path.join("src", "electron", "vendor", "boto")); subprocess.check_call(["python", "setup.py", "build"]);',
-    ],
-  },
-  {
-    'name': 'setup_requests',
-    'pattern': 'src/electron',
-    'condition': 'checkout_requests and process_deps',
-    'action': [
-      'python',
-      '-c',
-      'import os, subprocess; os.chdir(os.path.join("src", "electron", "vendor", "requests")); subprocess.check_call(["python", "setup.py", "build"]);',
+      '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"]);',
     ],
   },
 ]
 
 recursedeps = [
   'src',
+  'src/third_party/squirrel.mac',
 ]

ELECTRON_VERSION

@@ -1 +1 @@
-10.0.0-nightly.20200521
+15.0.0-nightly.20210609

LICENSE

@@ -1,3 +1,4 @@
+Copyright (c) Electron contributors
 Copyright (c) 2013-2020 GitHub Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining

README.md

@@ -1,11 +1,10 @@
 [![Electron Logo](https://electronjs.org/images/electron-logo.svg)](https://electronjs.org)
 
-
 [![CircleCI Build Status](https://circleci.com/gh/electron/electron/tree/master.svg?style=shield)](https://circleci.com/gh/electron/electron/tree/master)
 [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/4lggi9dpjc1qob7k/branch/master?svg=true)](https://ci.appveyor.com/project/electron-bot/electron-ljo26/branch/master)
-[![devDependency Status](https://david-dm.org/electron/electron/dev-status.svg)](https://david-dm.org/electron/electron?type=dev)
+[![Electron Discord Invite](https://img.shields.io/discord/745037351163527189?color=%237289DA&label=chat&logo=discord&logoColor=white)](https://discord.com/invite/electron)
 
-:memo: Available Translations: 🇨🇳 🇹🇼 🇧🇷 🇪🇸 🇰🇷 🇯🇵 🇷🇺 🇫🇷 🇹🇭 🇳🇱 🇹🇷 🇮🇩 🇺🇦 🇨🇿 🇮🇹 🇵🇱.
+:memo: Available Translations: 🇨🇳 🇧🇷 🇪🇸 🇯🇵 🇷🇺 🇫🇷 🇺🇸 🇩🇪.
 View these docs in other languages at [electron/i18n](https://github.com/electron/i18n/tree/master/content/).
 
 The Electron framework lets you write cross-platform desktop applications
@@ -28,15 +27,12 @@ The preferred method is to install Electron as a development dependency in your
 app:
 
 ```sh
-npm install electron --save-dev [--save-exact]
+npm install electron --save-dev
 ```
 
-The `--save-exact` flag is recommended for Electron prior to version 2, as it does not follow semantic
-versioning. As of version 2.0.0, Electron follows semver, so you don't need `--save-exact` flag. For info on how to manage Electron versions in your apps, see
-[Electron versioning](docs/tutorial/electron-versioning.md).
-
 For more installation options and troubleshooting tips, see
-[installation](docs/tutorial/installation.md).
+[installation](docs/tutorial/installation.md). For info on how to manage Electron versions in your apps, see
+[Electron versioning](docs/tutorial/electron-versioning.md).
 
 ## Quick start & Electron Fiddle
 

SECURITY.md

@@ -6,7 +6,12 @@ To report a security issue, email [security@electronjs.org](mailto:security@elec
 
 The Electron team will send a response indicating the next steps in handling your report. After the initial reply to your report, the security team will keep you informed of the progress towards a fix and full announcement, and may ask for additional information or guidance.
 
-Report security bugs in third-party modules to the person or team maintaining the module. You can also report a vulnerability through the [Node Security Project](https://nodesecurity.io/report).
+Report security bugs in third-party modules to the person or team maintaining the module. You can also report a vulnerability through the [npm contact form](https://www.npmjs.com/support) by selecting "I'm reporting a security vulnerability".
+
+## The Electron Security Notification Process
+
+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).

appveyor.yml

@@ -29,13 +29,14 @@
 
 version: 1.0.{build}
 build_cloud: electron-16-core
-image: vs2019bt-16.4.0
+image: vs2019bt-16.6.2
 environment:
   GIT_CACHE_PATH: C:\Users\electron\libcc_cache
   ELECTRON_OUT_DIR: Default
   ELECTRON_ENABLE_STACK_DUMPING: 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
@@ -53,7 +54,9 @@ build_script:
       } else {
         node script/yarn.js install --frozen-lockfile
 
-        if ($(node script/doc-only-change.js --prNumber=$env:APPVEYOR_PULL_REQUEST_NUMBER --prBranch=$env:APPVEYOR_REPO_BRANCH;$LASTEXITCODE -eq 0)) {
+        $result = node script/doc-only-change.js --prNumber=$env:APPVEYOR_PULL_REQUEST_NUMBER --prBranch=$env:APPVEYOR_REPO_BRANCH
+        Write-Output $result
+        if ($result.ExitCode -eq 0) {
           Write-warning "Skipping build for doc only change"; Exit-AppveyorBuild
         }
       }
@@ -61,13 +64,11 @@ build_script:
   - git config --global core.longpaths true
   - cd ..
   - mkdir src
+  - update_depot_tools.bat
   - ps: Move-Item $env:APPVEYOR_BUILD_FOLDER -Destination src\electron
   - ps: $env:CHROMIUM_BUILDTOOLS_PATH="$pwd\src\buildtools"
-  - ps: $env:SCCACHE_PATH="$pwd\src\electron\external_binaries\sccache.exe"
   - ps: >-
-      if ($env:GN_CONFIG -eq 'release') {
-        $env:GCLIENT_EXTRA_ARGS="$env:GCLIENT_EXTRA_ARGS --custom-var=checkout_boto=True --custom-var=checkout_requests=True"
-      } else {
+      if ($env:GN_CONFIG -ne 'release') {
         $env:NINJA_STATUS="[%r processes, %f/%t @ %o/s : %es] "
       }
   - >-
@@ -96,8 +97,11 @@ build_script:
               $env:SAVE_GCLIENT_SRC="true"
             }
           } else {
-            # update external binaries
-            python src/electron/script/update-external-binaries.py
+            # update angle
+            cd src\third_party\angle
+            git remote set-url origin  https://chromium.googlesource.com/angle/angle.git
+            git fetch
+            cd ..\..\..
           }
         } else {    
           # file does not exist, gclient sync, then zip
@@ -113,38 +117,38 @@ build_script:
       if ($env:SAVE_GCLIENT_SRC -eq 'true') {
         # archive current source for future use 
         # only run on x64/woa to avoid contention saving
-        if ($(7z a $zipfile src -xr!android_webview -xr!electron -xr'!*\.git' -xr!third_party\WebKit\LayoutTests! -xr!third_party\blink\web_tests -xr!third_party\blink\perf_tests -slp -t7z -mmt=30;$LASTEXITCODE -ne 0)) {
+        $(7z a $zipfile src -xr!android_webview -xr!electron -xr'!*\.git' -xr!third_party\WebKit\LayoutTests! -xr!third_party\blink\web_tests -xr!third_party\blink\perf_tests -slp -t7z -mmt=30)
+        if ($LASTEXITCODE -ne 0) {
           Write-warning "Could not save source to shared drive; continuing anyway"
         }
-        # build time generation of file gen/angle/commit.h depends on
-        # third_party/angle/.git/HEAD.
-        # https://chromium-review.googlesource.com/c/angle/angle/+/2074924
-        if ($(7z a $zipfile src\third_party\angle\.git\HEAD;$LASTEXITCODE -ne 0)) {
-          Write-warning "Failed to add third_party\angle\.git\HEAD; continuing anyway"
+        # build time generation of file gen/angle/angle_commit.h depends on
+        # third_party/angle/.git
+        # https://chromium-review.googlesource.com/c/angle/angle/+/2074924       
+        $(7z a $zipfile src\third_party\angle\.git)
+        if ($LASTEXITCODE -ne 0) {
+          Write-warning "Failed to add third_party\angle\.git; continuing anyway"
         }
       }
   - ps: >-
-      if ($env:GN_CONFIG -ne 'release') {
-        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
-        node -e "require('./src/utils/goma.js').downloadAndPrepare()"
-        $env:GN_GOMA_FILE = node -e "console.log(require('./src/utils/goma.js').gnFilePath)"
-        $env:LOCAL_GOMA_DIR = node -e "console.log(require('./src/utils/goma.js').dir)"
-        cd ..
-        .\src\electron\script\start-goma.ps1 -gomaDir $env:LOCAL_GOMA_DIR
+      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 
-  - if DEFINED GN_GOMA_FILE (gn gen out/Default "--args=import(\"%BUILD_CONFIG_PATH%\") import(\"%GN_GOMA_FILE%\") %GN_EXTRA_ARGS% ") else (gn gen out/Default "--args=import(\"%BUILD_CONFIG_PATH%\") %GN_EXTRA_ARGS% cc_wrapper=\"%SCCACHE_PATH%\"")
+  - gn gen out/Default "--args=import(\"%BUILD_CONFIG_PATH%\") import(\"%GN_GOMA_FILE%\") %GN_EXTRA_ARGS% "
   - gn check out/Default //electron:electron_lib
   - gn check out/Default //electron:electron_app
-  - gn check out/Default //electron:manifests
   - gn check out/Default //electron/shell/common/api:mojo
   - if DEFINED GN_GOMA_FILE (ninja -j 300 -C out/Default electron:electron_app) else (ninja -C out/Default electron:electron_app)
   - if "%GN_CONFIG%"=="testing" ( python C:\depot_tools\post_build_ninja_summary.py -C out\Default )
@@ -160,7 +164,7 @@ build_script:
   - ninja -C out/Default electron:hunspell_dictionaries_zip
   - ninja -C out/Default electron:electron_chromedriver_zip
   - ninja -C out/Default third_party/electron_node:headers
-  - if "%GN_CONFIG%"=="testing" ( python %LOCAL_GOMA_DIR%\goma_ctl.py stat )
+  - python %LOCAL_GOMA_DIR%\goma_ctl.py stat
   - 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
@@ -204,7 +208,8 @@ test_script:
         echo "Skipping tests for $env:GN_CONFIG build"
       }
   - cd electron
-  - if "%RUN_TESTS%"=="true" ( echo Running test suite & node script/yarn test -- --trace-uncaught --enable-logging)
+  # CalculateNativeWinOcclusion is disabled due to https://bugs.chromium.org/p/chromium/issues/detail?id=1139022
+  - if "%RUN_TESTS%"=="true" ( echo Running test suite & node script/yarn test -- --trace-uncaught --enable-logging --disable-features=CalculateNativeWinOcclusion )
   - cd ..
   - if "%RUN_TESTS%"=="true" ( echo Verifying non proprietary ffmpeg & python electron\script\verify-ffmpeg.py --build-dir out\Default --source-root %cd% --ffmpeg-path out\ffmpeg )
   - echo "About to verify mksnapshot"
@@ -218,10 +223,10 @@ deploy_script:
       if (Test-Path Env:\ELECTRON_RELEASE) {
         if (Test-Path Env:\UPLOAD_TO_S3) {
           Write-Output "Uploading Electron release distribution to s3"
-          & python script\release\uploaders\upload.py --upload_to_s3
+          & python script\release\uploaders\upload.py --verbose --upload_to_s3
         } else {
           Write-Output "Uploading Electron release distribution to github releases"
-          & python script\release\uploaders\upload.py
+          & python script\release\uploaders\upload.py --verbose
         }
       } elseif (Test-Path Env:\TEST_WOA) {
         node script/release/ci-release-build.js --job=electron-woa-testing --ci=VSTS --armTest --appveyorJobId=$env:APPVEYOR_JOB_ID $env:APPVEYOR_REPO_BRANCH

azure-pipelines-arm.yml

@@ -0,0 +1,121 @@
+steps:
+- task: CopyFiles@2
+  displayName: 'Copy Files to: src/electron'
+  inputs:
+    TargetFolder: src/electron
+
+- bash: |
+    cd src/electron
+    node script/yarn.js install --frozen-lockfile
+  displayName: 'Yarn install'
+
+- bash: |
+    export ZIP_DEST=$PWD/src/out/Default
+    echo "##vso[task.setvariable variable=ZIP_DEST]$ZIP_DEST"
+    mkdir -p $ZIP_DEST
+    cd src/electron
+    node script/download-circleci-artifacts.js --buildNum=$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: $(CIRCLECI_TOKEN)
+
+- bash: |
+    export FFMPEG_ZIP_DEST=$PWD/src/out/ffmpeg
+    mkdir -p $FFMPEG_ZIP_DEST
+    cd src/electron
+    node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=ffmpeg.zip --dest=$FFMPEG_ZIP_DEST
+    cd $FFMPEG_ZIP_DEST
+    unzip -o ffmpeg.zip
+  displayName: 'Download and unzip ffmpeg for test'
+  env:
+    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
+
+- bash: |
+   export NODE_HEADERS_DEST=$PWD/src/out/Default/gen
+   mkdir -p $NODE_HEADERS_DEST
+   cd src/electron
+   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=node_headers.tar.gz --dest=$NODE_HEADERS_DEST
+   cd $NODE_HEADERS_DEST
+   tar xzf node_headers.tar.gz
+  displayName: 'Download and untar node header files for test'
+  env:
+    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
+
+- bash: |
+   export CROSS_ARCH_SNAPSHOTS=$PWD/src/out/Default/cross-arch-snapshots
+   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
+  displayName: 'Download cross arch snapshot files'
+  env:
+    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
+
+- bash: |
+    cd src
+    export ELECTRON_OUT_DIR=Default
+    export npm_config_arch=arm64
+    (cd electron && node script/yarn test --enable-logging --runners main)
+  displayName: 'Run Electron main tests'
+  timeoutInMinutes: 20
+  env:
+    ELECTRON_DISABLE_SECURITY_WARNINGS: 1
+    IGNORE_YARN_INSTALL_ERROR: 1
+    ELECTRON_TEST_RESULTS_DIR: junit
+
+- bash: |
+    cd src
+    export ELECTRON_OUT_DIR=Default
+    export npm_config_arch=arm64
+    (cd electron && node script/yarn test --enable-logging --runners remote)
+  displayName: 'Run Electron remote tests'
+  timeoutInMinutes: 20
+  condition: succeededOrFailed()
+  env:
+    ELECTRON_DISABLE_SECURITY_WARNINGS: 1
+    IGNORE_YARN_INSTALL_ERROR: 1
+    ELECTRON_TEST_RESULTS_DIR: junit
+
+- bash: |
+    cd src
+    python electron/script/verify-ffmpeg.py --source-root "$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
+    echo Verify cross arch snapshot
+    python electron/script/verify-mksnapshot.py --source-root "$PWD" --build-dir out/Default --snapshot-files-dir $PWD/out/Default/cross-arch-snapshots
+  displayName: Verify cross arch snapshot
+  timeoutInMinutes: 5
+  condition: succeededOrFailed()
+
+- task: PublishTestResults@2
+  displayName: 'Publish Test Results'
+  inputs:
+    testResultsFiles: '*.xml'
+
+    searchFolder: '$(System.DefaultWorkingDirectory)/src/junit/'
+
+  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'
+
+  condition: always()

azure-pipelines-woa.yml

@@ -63,7 +63,8 @@ steps:
     set npm_config_nodedir=%cd%\out\Default\gen\node_headers
     set npm_config_arch=arm64
     cd electron
-    node script/yarn test -- --enable-logging --verbose
+    # 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
@@ -71,7 +72,6 @@ steps:
     ELECTRON_TEST_RESULTS_DIR: junit
     MOCHA_MULTI_REPORTERS: 'mocha-junit-reporter, tap'
     MOCHA_REPORTER: mocha-multi-reporters
-    MOCHA_TIMEOUT: 120000
 
 - task: PublishTestResults@2
   displayName: 'Publish Test Results'
@@ -88,7 +88,11 @@ steps:
 
 - powershell: |
     Get-Process | Where Name –Like "electron*" | Stop-Process
-    Get-Process | Where Name –Like "MicrosoftEdge*" | Stop-Process
     Get-Process | Where Name –Like "msedge*" | Stop-Process
   displayName: 'Kill processes left running from last test run'
   condition: always()
+
+- powershell: |
+    Remove-Item -path $env:APPDATA/Electron* -Recurse -Force -ErrorAction Ignore
+  displayName: 'Delete user app data directories'
+  condition: always()

build/args/all.gn

@@ -2,7 +2,7 @@ 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 = 82
+node_module_version = 89
 
 v8_promise_internal_field_count = 1
 v8_typed_array_max_size_in_heap = 0
@@ -19,4 +19,15 @@ enable_basic_printing = true
 angle_enable_vulkan_validation_layers = false
 dawn_enable_vulkan_validation_layers = false
 
+# This breaks native node modules
+libcxx_abi_unstable = false
+
+# These are disabled because they cause the zip manifest to differ between
+# testing and release builds.
+# See https://chromium-review.googlesource.com/c/chromium/src/+/2774898.
+enable_pseudolocales = false
+
 is_cfi = false
+
+# Make application name configurable at runtime for cookie crypto
+allow_runtime_configurable_key_storage = true

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)
+  symbol_data = subprocess.check_output(args).decode(sys.stdout.encoding)
   symbol_path = os.path.join(out_dir, get_symbol_path(symbol_data))
   mkdir_p(os.path.dirname(symbol_path))
 

build/fake_v8_context_snapshot_generator.py

@@ -0,0 +1,8 @@
+import os
+import shutil
+import sys
+
+if os.path.exists(sys.argv[2]):
+  os.remove(sys.argv[2])
+
+shutil.copy(sys.argv[1], sys.argv[2])

build/fuses/build.py

@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+
+from collections import OrderedDict
+import json
+import os
+import sys
+
+dir_path = os.path.dirname(os.path.realpath(__file__))
+
+SENTINEL = "dL7pKGdnNz796PbbjQWNKmHXBZaB9tsX"
+
+TEMPLATE_H = """
+#ifndef ELECTRON_FUSES_H_
+#define ELECTRON_FUSES_H_
+
+#if defined(WIN32)
+#define FUSE_EXPORT __declspec(dllexport)
+#else
+#define FUSE_EXPORT __attribute__((visibility("default")))
+#endif
+
+namespace electron {
+
+namespace fuses {
+
+extern const volatile char kFuseWire[];
+
+{getters}
+
+}  // namespace fuses
+
+}  // namespace electron
+
+#endif  // ELECTRON_FUSES_H_
+"""
+
+TEMPLATE_CC = """
+#include "electron/fuses.h"
+
+namespace electron {
+
+namespace fuses {
+
+const volatile char kFuseWire[] = { /* sentinel */ {sentinel}, /* fuse_version */ {fuse_version}, /* fuse_wire_length */ {fuse_wire_length}, /* fuse_wire */ {initial_config}};
+
+{getters}
+
+}
+
+}
+"""
+
+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)
+
+fuse_version = fuse_defaults['_version']
+del fuse_defaults['_version']
+del fuse_defaults['_schema']
+del fuse_defaults['_comment']
+
+if fuse_version >= pow(2, 8):
+  raise Exception("Fuse version can not exceed one byte in size")
+
+fuses = fuse_defaults.keys()
+
+initial_config = ""
+getters_h = ""
+getters_cc = ""
+index = len(SENTINEL) + 1
+for fuse in fuses:
+  index += 1
+  initial_config += fuse_defaults[fuse]
+  name = ''.join(word.title() for word in fuse.split('_'))
+  getters_h += "FUSE_EXPORT bool Is{name}Enabled();\n".replace("{name}", name)
+  getters_cc += """
+bool Is{name}Enabled() {
+  return kFuseWire[{index}] == '1';
+}
+""".replace("{name}", name).replace("{index}", str(index))
+
+def c_hex(n):
+  s = hex(n)[2:]
+  return "0x" + s.rjust(2, '0')
+
+def hex_arr(s):
+  arr = []
+  for char in s:
+    arr.append(c_hex(ord(char)))
+  return ",".join(arr)
+
+header = TEMPLATE_H.replace("{getters}", getters_h.strip())
+impl = TEMPLATE_CC.replace("{sentinel}", hex_arr(SENTINEL))
+impl = impl.replace("{fuse_version}", c_hex(fuse_version))
+impl = impl.replace("{fuse_wire_length}", c_hex(len(fuses)))
+impl = impl.replace("{initial_config}", hex_arr(initial_config))
+impl = impl.replace("{getters}", getters_cc.strip())
+
+with open(sys.argv[1], 'w') as f:
+  f.write(header)
+
+with open(sys.argv[2], 'w') as f:
+  f.write(impl)

build/fuses/fuses.json5

@@ -0,0 +1,7 @@
+{
+  "_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"
+}

build/install-build-deps.sh

@@ -1,653 +0,0 @@
-#!/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

build/mac/make_locale_dirs.py

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

build/npm-run.py

@@ -15,5 +15,6 @@ args = [cmd, "run",
 try:
     subprocess.check_output(args, stderr=subprocess.STDOUT)
 except subprocess.CalledProcessError as e:
-    print("NPM script '" + sys.argv[2] + "' failed with code '" + str(e.returncode) + "':\n" + e.output)
+    error_msg = "NPM script '{}' failed with code '{}':\n".format(sys.argv[2], e.returncode)
+    print(error_msg + e.output.decode('ascii'))
     sys.exit(e.returncode)

build/profile_toolchain.py

@@ -11,7 +11,6 @@ import find_depot_tools
 from vs_toolchain import \
     SetEnvironmentAndGetRuntimeDllDirs, \
     SetEnvironmentAndGetSDKDir, \
-    GetVisualStudioVersion, \
     NormalizePath
 
 sys.path.append("%s/win_toolchain" % find_depot_tools.add_depot_tools_to_path())
@@ -20,10 +19,10 @@ from get_toolchain_if_necessary import CalculateHash
 
 
 @contextlib.contextmanager
-def cwd(dir):
+def cwd(directory):
     curdir = os.getcwd()
     try:
-        os.chdir(dir)
+        os.chdir(directory)
         yield
     finally:
         os.chdir(curdir)
@@ -71,12 +70,18 @@ def windows_profile():
     win_sdk_dir = SetEnvironmentAndGetSDKDir()
     path = NormalizePath(os.environ['GYP_MSVS_OVERRIDE_PATH'])
 
+    # since current windows executable are symbols path dependant,
+    # profile the current directory too
     return {
-        'pwd': os.getcwd(), # since current windows executable are symbols path dependant, profile the current directory too
+        'pwd': os.getcwd(),
         'installed_software': windows_installed_software(),
         'sdks': [
             {'name': 'vs', 'path': path, 'hash': calculate_hash(path)},
-            {'name': 'wsdk', 'path': win_sdk_dir, 'hash': calculate_hash(win_sdk_dir)}
+            {
+                'name': 'wsdk',
+                'path': win_sdk_dir,
+                'hash': calculate_hash(win_sdk_dir),
+            },
         ],
         'runtime_lib_dirs': runtime_dll_dirs,
     }
@@ -94,5 +99,5 @@ if __name__ == '__main__':
   parser = optparse.OptionParser()
   parser.add_option('--output-json', metavar='FILE', default='profile.json',
                     help='write information about toolchain to FILE')
-  options, args = parser.parse_args()
-  sys.exit(main(options))
+  opts, args = parser.parse_args()
+  sys.exit(main(opts))

build/run-in-dir.py

@@ -1,6 +1,5 @@
 import sys
 import os
-import subprocess
 
 def main(argv):
   cwd = argv[1]

build/strip_framework.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+import os
+import subprocess
+import sys
+
+source = sys.argv[1]
+dest = sys.argv[2]
+
+# Ensure any existing framework is removed
+subprocess.check_output(["rm", "-rf", dest])
+
+subprocess.check_output(["cp", "-a", source, dest])
+
+# Strip headers, we do not need to ship them
+subprocess.check_output(["rm", "-r", os.path.join(dest, "Headers")])
+subprocess.check_output(
+    ["rm", "-r", os.path.join(dest, "Versions", "Current", "Headers")]
+)

build/tsc.gni

@@ -26,19 +26,12 @@ template("typescript_build") {
       "//electron/typings/internal-electron.d.ts",
     ]
 
-    type_roots = "node_modules/@types,typings"
-    if (defined(invoker.type_root)) {
-      type_roots += "," + invoker.type_root
-    }
-
     base_out_path = invoker.output_gen_dir + "/electron/"
     args = [
       "-p",
       rebase_path(invoker.tsconfig),
       "--outDir",
       rebase_path("$base_out_path" + invoker.output_dir_name),
-      "--typeRoots",
-      type_roots,
     ]
 
     outputs = []

build/webpack/get-outputs.js

@@ -1,2 +0,0 @@
-process.env.PRINT_WEBPACK_GRAPH = true
-require('./run-compiler')

build/webpack/run-compiler.js

@@ -1,22 +0,0 @@
-const path = require('path')
-const webpack = require('webpack')
-
-const configPath = process.argv[2]
-const outPath = path.resolve(process.argv[3])
-const config = require(configPath)
-config.output = {
-  path: path.dirname(outPath),
-  filename: path.basename(outPath)
-}
-
-webpack(config, (err, stats) => {
-  if (err) {
-    console.error(err)
-    process.exit(1)
-  } else if (stats.hasErrors()) {
-    console.error(stats.toString('normal'))
-    process.exit(1)
-  } else {
-    process.exit(0)
-  }
-})

build/webpack/webpack.config.asar.js

@@ -0,0 +1,5 @@
+module.exports = require('./webpack.config.base')({
+  target: 'asar',
+  alwaysHasNode: true,
+  targetDeletesNodeGlobals: true
+});

build/webpack/webpack.config.base.js

@@ -1,134 +1,172 @@
-const fs = require('fs')
-const path = require('path')
-const webpack = require('webpack')
+const fs = require('fs');
+const path = require('path');
+const webpack = require('webpack');
+const TerserPlugin = require('terser-webpack-plugin');
+const WrapperPlugin = require('wrapper-webpack-plugin');
 
-const electronRoot = path.resolve(__dirname, '../..')
-
-const onlyPrintingGraph = !!process.env.PRINT_WEBPACK_GRAPH
+const electronRoot = path.resolve(__dirname, '../..');
 
 class AccessDependenciesPlugin {
-  apply(compiler) {
-    // Only hook into webpack when we are printing the dependency graph
-    if (!onlyPrintingGraph) return
-
+  apply (compiler) {
     compiler.hooks.compilation.tap('AccessDependenciesPlugin', compilation => {
       compilation.hooks.finishModules.tap('AccessDependenciesPlugin', modules => {
-        const filePaths = modules.map(m => m.resource).filter(p => p).map(p => path.relative(electronRoot, p))
-        console.info(JSON.stringify(filePaths))
-      })
-    })
+        const filePaths = modules.map(m => m.resource).filter(p => p).map(p => path.relative(electronRoot, p));
+        console.info(JSON.stringify(filePaths));
+      });
+    });
   }
 }
 
-const defines = {
-  BUILDFLAG: ''
-}
-
-const buildFlagsPrefix = '--buildflags='
-const buildFlagArg = process.argv.find(arg => arg.startsWith(buildFlagsPrefix));
-
-if (buildFlagArg) {
-  const buildFlagPath = buildFlagArg.substr(buildFlagsPrefix.length)
-
-  const flagFile = fs.readFileSync(buildFlagPath, 'utf8')
-  for (const line of flagFile.split(/(\r\n|\r|\n)/g)) {
-    const flagMatch = line.match(/#define BUILDFLAG_INTERNAL_(.+?)\(\) \(([01])\)/)
-    if (flagMatch) {
-      const flagName = flagMatch[1];
-      const flagValue = flagMatch[2];
-      defines[flagName] = JSON.stringify(Boolean(parseInt(flagValue, 10)));
-    }
-  }
-}
-
-const ignoredModules = []
-
-if (defines['ENABLE_DESKTOP_CAPTURER'] === 'false') {
-  ignoredModules.push(
-    '@electron/internal/browser/desktop-capturer',
-    '@electron/internal/browser/api/desktop-capturer',
-    '@electron/internal/renderer/api/desktop-capturer'
-  )
-}
-
-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'
-  )
-}
-
-const alias = {}
-for (const ignoredModule of ignoredModules) {
-  alias[ignoredModule] = path.resolve(electronRoot, 'lib/common/dummy.js')
-}
-
 module.exports = ({
   alwaysHasNode,
   loadElectronFromAlternateTarget,
   targetDeletesNodeGlobals,
-  target
+  target,
+  wrapInitWithProfilingTimeout,
+  wrapInitWithTryCatch
 }) => {
-  let entry = path.resolve(electronRoot, 'lib', target, 'init.ts')
+  let entry = path.resolve(electronRoot, 'lib', target, 'init.ts');
   if (!fs.existsSync(entry)) {
-    entry = path.resolve(electronRoot, 'lib', target, 'init.js')
+    entry = path.resolve(electronRoot, 'lib', target, 'init.js');
   }
 
-  return ({
-    mode: 'development',
-    devtool: 'inline-source-map',
-    entry,
-    target: alwaysHasNode ? 'node' : 'web',
-    output: {
-      filename: `${target}.bundle.js`
-    },
-    resolve: {
-      alias: {
-        ...alias,
-        '@electron/internal': path.resolve(electronRoot, 'lib'),
-        'electron': path.resolve(electronRoot, 'lib', loadElectronFromAlternateTarget || target, 'api', 'exports', 'electron.ts'),
-        // Force timers to resolve to our dependency that doens't use window.postMessage
-        'timers': path.resolve(electronRoot, 'node_modules', 'timers-browserify', 'main.js')
-      },
-      extensions: ['.ts', '.js']
-    },
-    module: {
-      rules: [{
-        test: /\.ts$/,
-        loader: 'ts-loader',
-        options: {
-          configFile: path.resolve(electronRoot, 'tsconfig.electron.json'),
-          transpileOnly: onlyPrintingGraph,
-          ignoreDiagnostics: [6059]
+  const electronAPIFile = path.resolve(electronRoot, 'lib', loadElectronFromAlternateTarget || target, 'api', 'exports', 'electron.ts');
+
+  return (env = {}, argv = {}) => {
+    const onlyPrintingGraph = !!env.PRINT_WEBPACK_GRAPH;
+    const outputFilename = argv['output-filename'] || `${target}.bundle.js`;
+
+    const defines = {
+      BUILDFLAG: onlyPrintingGraph ? '(a => a)' : ''
+    };
+
+    if (env.buildflags) {
+      const flagFile = fs.readFileSync(env.buildflags, 'utf8');
+      for (const line of flagFile.split(/(\r\n|\r|\n)/g)) {
+        const flagMatch = line.match(/#define BUILDFLAG_INTERNAL_(.+?)\(\) \(([01])\)/);
+        if (flagMatch) {
+          const [, flagName, flagValue] = flagMatch;
+          defines[flagName] = JSON.stringify(Boolean(parseInt(flagValue, 10)));
         }
-      }]
-    },
-    node: {
-      __dirname: false,
-      __filename: false,
-      // We provide our own "timers" import above, any usage of setImmediate inside
-      // one of our renderer bundles should import it from the 'timers' package
-      setImmediate: false,
-    },
-    plugins: [
-      new AccessDependenciesPlugin(),
-      ...(targetDeletesNodeGlobals ? [
-        new webpack.ProvidePlugin({
-          process: ['@electron/internal/renderer/webpack-provider', 'process'],
-          global: ['@electron/internal/renderer/webpack-provider', '_global'],
-          Buffer: ['@electron/internal/renderer/webpack-provider', 'Buffer'],
-        })
-      ] : []),
-      new webpack.ProvidePlugin({
-        Promise: ['@electron/internal/common/webpack-globals-provider', 'Promise'],
-      }),
-      new webpack.DefinePlugin(defines),
-    ]
-  })
-}
+      }
+    }
+
+    const ignoredModules = [];
+
+    if (defines.ENABLE_DESKTOP_CAPTURER === 'false') {
+      ignoredModules.push(
+        '@electron/internal/browser/desktop-capturer',
+        '@electron/internal/browser/api/desktop-capturer',
+        '@electron/internal/renderer/api/desktop-capturer'
+      );
+    }
+
+    if (defines.ENABLE_VIEWS_API === 'false') {
+      ignoredModules.push(
+        '@electron/internal/browser/api/views/image-view.js'
+      );
+    }
+
+    const plugins = [];
+
+    if (onlyPrintingGraph) {
+      plugins.push(new AccessDependenciesPlugin());
+    }
+
+    if (targetDeletesNodeGlobals) {
+      plugins.push(new webpack.ProvidePlugin({
+        process: ['@electron/internal/common/webpack-provider', 'process'],
+        global: ['@electron/internal/common/webpack-provider', '_global'],
+        Buffer: ['@electron/internal/common/webpack-provider', 'Buffer']
+      }));
+    }
+
+    plugins.push(new webpack.ProvidePlugin({
+      Promise: ['@electron/internal/common/webpack-globals-provider', 'Promise']
+    }));
+
+    plugins.push(new webpack.DefinePlugin(defines));
+
+    if (wrapInitWithProfilingTimeout) {
+      plugins.push(new WrapperPlugin({
+        header: 'function ___electron_webpack_init__() {',
+        footer: `
+};
+if ((globalThis.process || binding.process).argv.includes("--profile-electron-init")) {
+  setTimeout(___electron_webpack_init__, 0);
+} else {
+  ___electron_webpack_init__();
+}`
+      }));
+    }
+
+    if (wrapInitWithTryCatch) {
+      plugins.push(new WrapperPlugin({
+        header: 'try {',
+        footer: `
+} catch (err) {
+  console.error('Electron ${outputFilename} script failed to run');
+  console.error(err);
+}`
+      }));
+    }
+
+    return {
+      mode: 'development',
+      devtool: false,
+      entry,
+      target: alwaysHasNode ? 'node' : 'web',
+      output: {
+        filename: outputFilename
+      },
+      resolve: {
+        alias: {
+          '@electron/internal': path.resolve(electronRoot, 'lib'),
+          electron$: electronAPIFile,
+          'electron/main$': electronAPIFile,
+          'electron/renderer$': electronAPIFile,
+          'electron/common$': electronAPIFile,
+          // Force timers to resolve to our dependency that doesn't use window.postMessage
+          timers: path.resolve(electronRoot, 'node_modules', 'timers-browserify', 'main.js')
+        },
+        extensions: ['.ts', '.js']
+      },
+      module: {
+        rules: [{
+          test: (moduleName) => !onlyPrintingGraph && ignoredModules.includes(moduleName),
+          loader: 'null-loader'
+        }, {
+          test: /\.ts$/,
+          loader: 'ts-loader',
+          options: {
+            configFile: path.resolve(electronRoot, 'tsconfig.electron.json'),
+            transpileOnly: onlyPrintingGraph,
+            ignoreDiagnostics: [
+              // File '{0}' is not under 'rootDir' '{1}'.
+              6059
+            ]
+          }
+        }]
+      },
+      node: {
+        __dirname: false,
+        __filename: false,
+        // We provide our own "timers" import above, any usage of setImmediate inside
+        // one of our renderer bundles should import it from the 'timers' package
+        setImmediate: false
+      },
+      optimization: {
+        minimize: env.mode === 'production',
+        minimizer: [
+          new TerserPlugin({
+            terserOptions: {
+              keep_classnames: true,
+              keep_fnames: true
+            }
+          })
+        ]
+      },
+      plugins
+    };
+  };
+};

build/webpack/webpack.config.browser.js

@@ -1,4 +1,4 @@
 module.exports = require('./webpack.config.base')({
   target: 'browser',
   alwaysHasNode: true
-})
+});

build/webpack/webpack.config.isolated_renderer.js

@@ -1,4 +1,5 @@
 module.exports = require('./webpack.config.base')({
   target: 'isolated_renderer',
-  alwaysHasNode: false
-})
+  alwaysHasNode: false,
+  wrapInitWithTryCatch: true
+});

build/webpack/webpack.config.renderer.js

@@ -1,5 +1,7 @@
 module.exports = require('./webpack.config.base')({
   target: 'renderer',
   alwaysHasNode: true,
-  targetDeletesNodeGlobals: true
-})
+  targetDeletesNodeGlobals: true,
+  wrapInitWithProfilingTimeout: true,
+  wrapInitWithTryCatch: true
+});

build/webpack/webpack.config.sandboxed_renderer.js

@@ -1,4 +1,6 @@
 module.exports = require('./webpack.config.base')({
   target: 'sandboxed_renderer',
-  alwaysHasNode: false
-})
+  alwaysHasNode: false,
+  wrapInitWithProfilingTimeout: true,
+  wrapInitWithTryCatch: true
+});

build/webpack/webpack.config.worker.js

@@ -2,5 +2,6 @@ module.exports = require('./webpack.config.base')({
   target: 'worker',
   loadElectronFromAlternateTarget: 'renderer',
   alwaysHasNode: true,
-  targetDeletesNodeGlobals: true
-})
+  targetDeletesNodeGlobals: true,
+  wrapInitWithTryCatch: true
+});

build/webpack/webpack.gni

@@ -22,10 +22,19 @@ 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),
-      rebase_path(invoker.out_file),
-      "--buildflags=" + rebase_path("$target_gen_dir/buildflags/buildflags.h"),
+      "--output-filename=" + get_path_info(invoker.out_file, "file"),
+      "--output-path=" + rebase_path(get_path_info(invoker.out_file, "dir")),
+      "--env.buildflags=" +
+          rebase_path("$target_gen_dir/buildflags/buildflags.h"),
+      "--env.mode=" + mode,
     ]
     deps += [ "buildflags" ]
 

build/zip.py

@@ -9,29 +9,38 @@ EXTENSIONS_TO_SKIP = [
   '.pdb',
   '.mojom.js',
   '.mojom-lite.js',
-  '.info'
+  '.info',
+  '.m.js'
 ]
 
 PATHS_TO_SKIP = [
-  'angledata', #Skipping because it is an output of //ui/gl that we don't need
-  './libVkICD_mock_', #Skipping because these are outputs that we don't need
-  './VkICD_mock_', #Skipping because these are outputs that we don't need
-
-  # Skipping because its an output of create_bundle from //build/config/mac/rules.gni
-  # that we don't need
+  # Skip because it is an output of //ui/gl that we don't need.
+  'angledata',
+  # Skip because these are outputs that we don't need.
+  './libVkICD_mock_',
+  # Skip because these are outputs that we don't need.
+  './VkICD_mock_',
+  # Skip because its an output of create_bundle from
+  # //build/config/mac/rules.gni that we don't need
   'Electron.dSYM',
-
+  # Refs https://chromium-review.googlesource.com/c/angle/angle/+/2425197.
+  # Remove this when Angle themselves remove the file:
+  # https://issuetracker.google.com/issues/168736059
+  'gen/angle/angle_commit.h',
   # //chrome/browser:resources depends on this via
   # //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):
@@ -44,7 +53,12 @@ def skip_path(dep, dist_zip, target_cpu):
   should_skip = (
     any(dep.startswith(path) for path in PATHS_TO_SKIP) or
     any(dep.endswith(ext) for ext in EXTENSIONS_TO_SKIP) or
-    ('arm' in target_cpu and dist_zip == 'mksnapshot.zip' and dep == 'snapshot_blob.bin'))
+    (
+      "arm" in target_cpu
+      and dist_zip == "mksnapshot.zip"
+      and dep == "snapshot_blob.bin"
+    )
+  )
   if should_skip:
     print("Skipping {}".format(dep))
   return should_skip
@@ -58,7 +72,7 @@ def execute(argv):
     raise e
 
 def main(argv):
-  dist_zip, runtime_deps, target_cpu, target_os, flatten_val = argv
+  dist_zip, runtime_deps, target_cpu, _, flatten_val, flatten_relative_to = argv
   should_flatten = flatten_val == "true"
   dist_files = set()
   with open(runtime_deps) as f:
@@ -69,17 +83,35 @@ def main(argv):
   if sys.platform == 'darwin' and not should_flatten:
     execute(['zip', '-r', '-y', dist_zip] + list(dist_files))
   else:
-    with zipfile.ZipFile(dist_zip, 'w', zipfile.ZIP_DEFLATED, allowZip64=True) as z:
+    with zipfile.ZipFile(
+      dist_zip, 'w', zipfile.ZIP_DEFLATED, allowZip64=True
+    ) as z:
       for dep in dist_files:
         if os.path.isdir(dep):
-          for root, dirs, files in os.walk(dep):
-            for file in files:
-              z.write(os.path.join(root, file))
+          for root, _, files in os.walk(dep):
+            for filename in files:
+              z.write(os.path.join(root, filename))
         else:
           basename = os.path.basename(dep)
           dirname = os.path.dirname(dep)
-          arcname = os.path.join(dirname, 'chrome-sandbox') if basename == 'chrome_sandbox' else dep
-          z.write(dep, os.path.basename(arcname) if should_flatten else arcname)
+          arcname = (
+            os.path.join(dirname, 'chrome-sandbox')
+            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,
+          )
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))

build/zip_libcxx.py

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

buildflags/BUILD.gn

@@ -12,15 +12,14 @@ 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=$enable_views_api",
-    "ENABLE_PEPPER_FLASH=$enable_pepper_flash",
     "ENABLE_PDF_VIEWER=$enable_pdf_viewer",
     "ENABLE_TTS=$enable_tts",
     "ENABLE_COLOR_CHOOSER=$enable_color_chooser",
     "ENABLE_ELECTRON_EXTENSIONS=$enable_electron_extensions",
     "ENABLE_BUILTIN_SPELLCHECKER=$enable_builtin_spellchecker",
     "ENABLE_PICTURE_IN_PICTURE=$enable_picture_in_picture",
+    "ENABLE_WIN_DARK_MODE_WINDOW_UI=$enable_win_dark_mode_window_ui",
     "OVERRIDE_LOCATION_PROVIDER=$enable_fake_location_provider",
   ]
 }

buildflags/buildflags.gni

@@ -10,8 +10,6 @@ declare_args() {
 
   enable_osr = true
 
-  enable_remote_module = true
-
   enable_views_api = true
 
   enable_pdf_viewer = true
@@ -28,12 +26,12 @@ declare_args() {
   # Should not be enabled for release build.
   enable_fake_location_provider = !is_official_build
 
-  # Enable flash plugin support.
-  enable_pepper_flash = true
-
   # Enable Chrome extensions support.
   enable_electron_extensions = true
 
   # Enable Spellchecker support
   enable_builtin_spellchecker = true
+
+  # Undocumented Windows dark mode API
+  enable_win_dark_mode_window_ui = false
 }

chromium_src/BUILD.gn

@@ -2,6 +2,7 @@
 # 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")
@@ -12,10 +13,10 @@ import("//third_party/widevine/cdm/widevine.gni")
 static_library("chrome") {
   visibility = [ "//electron:electron_lib" ]
   sources = [
+    "//chrome/browser/accessibility/accessibility_ui.cc",
+    "//chrome/browser/accessibility/accessibility_ui.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",
@@ -24,18 +25,10 @@ static_library("chrome") {
     "//chrome/browser/devtools/devtools_file_system_indexer.h",
     "//chrome/browser/extensions/global_shortcut_listener.cc",
     "//chrome/browser/extensions/global_shortcut_listener.h",
-    "//chrome/browser/extensions/global_shortcut_listener_mac.h",
-    "//chrome/browser/extensions/global_shortcut_listener_mac.mm",
-    "//chrome/browser/extensions/global_shortcut_listener_win.cc",
-    "//chrome/browser/extensions/global_shortcut_listener_win.h",
     "//chrome/browser/icon_loader.cc",
     "//chrome/browser/icon_loader.h",
-    "//chrome/browser/icon_loader_mac.mm",
-    "//chrome/browser/icon_loader_win.cc",
     "//chrome/browser/icon_manager.cc",
     "//chrome/browser/icon_manager.h",
-    "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.h",
-    "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.mm",
     "//chrome/browser/net/chrome_mojo_proxy_resolver_factory.cc",
     "//chrome/browser/net/chrome_mojo_proxy_resolver_factory.h",
     "//chrome/browser/net/proxy_config_monitor.cc",
@@ -50,37 +43,71 @@ 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/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",
-    "//chrome/browser/win/chrome_process_finder.cc",
-    "//chrome/browser/win/chrome_process_finder.h",
-    "//chrome/child/v8_crashpad_support_win.cc",
-    "//chrome/child/v8_crashpad_support_win.h",
     "//extensions/browser/app_window/size_constraints.cc",
     "//extensions/browser/app_window/size_constraints.h",
   ]
+
+  if (is_mac) {
+    sources += [
+      "//chrome/browser/extensions/global_shortcut_listener_mac.h",
+      "//chrome/browser/extensions/global_shortcut_listener_mac.mm",
+      "//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",
+    ]
+  }
+
+  if (is_win) {
+    sources += [
+      "//chrome/browser/extensions/global_shortcut_listener_win.cc",
+      "//chrome/browser/extensions/global_shortcut_listener_win.h",
+      "//chrome/browser/icon_loader_win.cc",
+      "//chrome/browser/win/chrome_process_finder.cc",
+      "//chrome/browser/win/chrome_process_finder.h",
+      "//chrome/child/v8_crashpad_support_win.cc",
+      "//chrome/child/v8_crashpad_support_win.h",
+    ]
+  }
+
   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/security_state/content",
     "//content/public/browser",
+    "//services/strings",
   ]
+
   deps = [
     "//chrome/browser:resource_prefetch_predictor_proto",
-    "//components/feature_engagement:buildflags",
+    "//chrome/services/speech:buildflags",
     "//components/optimization_guide/proto:optimization_guide_proto",
   ]
 
   if (is_linux) {
     sources += [ "//chrome/browser/icon_loader_auralinux.cc" ]
+    if (use_x11 || use_ozone) {
+      sources +=
+          [ "//chrome/browser/extensions/global_shortcut_listener_linux.cc" ]
+    }
+    if (use_x11) {
+      sources += [
+        "//chrome/browser/extensions/global_shortcut_listener_x11.cc",
+        "//chrome/browser/extensions/global_shortcut_listener_x11.h",
+      ]
+    }
+    if (use_ozone) {
+      deps += [ "//ui/ozone" ]
+      sources += [
+        "//chrome/browser/extensions/global_shortcut_listener_ozone.cc",
+        "//chrome/browser/extensions/global_shortcut_listener_ozone.h",
+      ]
+    }
     sources += [
-      "//chrome/browser/extensions/global_shortcut_listener_x11.cc",
-      "//chrome/browser/extensions/global_shortcut_listener_x11.h",
       "//chrome/browser/ui/views/status_icons/concat_menu_model.cc",
       "//chrome/browser/ui/views/status_icons/concat_menu_model.h",
       "//chrome/browser/ui/views/status_icons/status_icon_linux_dbus.cc",
@@ -92,6 +119,14 @@ static_library("chrome") {
     ]
   }
 
+  if (is_win) {
+    sources += [
+      "//chrome/browser/win/icon_reader_service.cc",
+      "//chrome/browser/win/icon_reader_service.h",
+    ]
+    public_deps += [ "//chrome/services/util_win:lib" ]
+  }
+
   if (enable_desktop_capturer) {
     sources += [
       "//chrome/browser/media/webrtc/desktop_media_list.h",
@@ -111,10 +146,17 @@ static_library("chrome") {
       "//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" ]
+      sources += [
+        "//chrome/browser/platform_util_aura.cc",
+        "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_aura.cc",
+      ]
 
       if (!is_win) {
         sources += [
@@ -131,6 +173,8 @@ static_library("chrome") {
         "//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",
@@ -148,17 +192,10 @@ static_library("chrome") {
     }
 
     if (is_linux) {
-      sources += [ "//chrome/browser/media/webrtc/window_icon_util_x11.cc" ]
+      sources += [ "//chrome/browser/media/webrtc/window_icon_util_linux.cc" ]
     }
   }
 
-  if (enable_tts) {
-    sources += [
-      "//chrome/browser/speech/tts_controller_delegate_impl.cc",
-      "//chrome/browser/speech/tts_controller_delegate_impl.h",
-    ]
-  }
-
   if (enable_widevine) {
     sources += [
       "//chrome/renderer/media/chrome_key_systems.cc",
@@ -179,12 +216,8 @@ static_library("chrome") {
       "//chrome/browser/printing/print_job_worker.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_message_filter.cc",
-      "//chrome/browser/printing/printing_message_filter.h",
       "//chrome/browser/printing/printing_service.cc",
       "//chrome/browser/printing/printing_service.h",
     ]
@@ -219,8 +252,12 @@ 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/hang_up_button.cc",
+      "//chrome/browser/ui/views/overlay/hang_up_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",
@@ -229,6 +266,10 @@ 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",
     ]
@@ -260,19 +301,28 @@ static_library("chrome") {
       ]
     }
   }
+
+  if (!is_mas_build) {
+    sources += [ "//chrome/browser/hang_monitor/hang_crash_dump.h" ]
+    if (is_mac) {
+      sources += [ "//chrome/browser/hang_monitor/hang_crash_dump_mac.cc" ]
+    } else if (is_win) {
+      sources += [ "//chrome/browser/hang_monitor/hang_crash_dump_win.cc" ]
+    } else {
+      sources += [ "//chrome/browser/hang_monitor/hang_crash_dump.cc" ]
+    }
+  }
 }
 
 source_set("plugins") {
   sources = []
   deps = []
-  libs = []
+  frameworks = []
 
   # browser side
   sources += [
     "//chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.cc",
     "//chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h",
-    "//chrome/browser/renderer_host/pepper/pepper_broker_message_filter.cc",
-    "//chrome/browser/renderer_host/pepper/pepper_broker_message_filter.h",
     "//chrome/browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.cc",
     "//chrome/browser/renderer_host/pepper/pepper_isolated_file_system_message_filter.h",
   ]
@@ -285,26 +335,6 @@ source_set("plugins") {
   if (enable_pdf_viewer) {
     deps += [ "//components/pdf/browser" ]
   }
-  if (enable_pepper_flash) {
-    sources += [
-      "//chrome/browser/renderer_host/pepper/pepper_flash_browser_host.cc",
-      "//chrome/browser/renderer_host/pepper/pepper_flash_browser_host.h",
-      "//chrome/browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.cc",
-      "//chrome/browser/renderer_host/pepper/pepper_flash_clipboard_message_filter.h",
-      "//chrome/browser/renderer_host/pepper/pepper_flash_drm_host.cc",
-      "//chrome/browser/renderer_host/pepper/pepper_flash_drm_host.h",
-    ]
-    if (is_mac) {
-      sources += [
-        "//chrome/browser/renderer_host/pepper/monitor_finder_mac.h",
-        "//chrome/browser/renderer_host/pepper/monitor_finder_mac.mm",
-      ]
-      libs += [ "CoreGraphics.framework" ]
-    }
-    if (is_linux) {
-      deps += [ "//components/services/font/public/cpp" ]
-    }
-  }
 
   # renderer side
   sources += [
@@ -313,19 +343,7 @@ source_set("plugins") {
     "//chrome/renderer/pepper/pepper_shared_memory_message_filter.cc",
     "//chrome/renderer/pepper/pepper_shared_memory_message_filter.h",
   ]
-  if (enable_pepper_flash) {
-    sources += [
-      "//chrome/renderer/pepper/pepper_flash_drm_renderer_host.cc",
-      "//chrome/renderer/pepper/pepper_flash_drm_renderer_host.h",
-      "//chrome/renderer/pepper/pepper_flash_fullscreen_host.cc",
-      "//chrome/renderer/pepper/pepper_flash_fullscreen_host.h",
-      "//chrome/renderer/pepper/pepper_flash_menu_host.cc",
-      "//chrome/renderer/pepper/pepper_flash_menu_host.h",
-      "//chrome/renderer/pepper/pepper_flash_renderer_host.cc",
-      "//chrome/renderer/pepper/pepper_flash_renderer_host.h",
-    ]
-  }
-  if (enable_pepper_flash || enable_pdf_viewer) {
+  if (enable_pdf_viewer) {
     sources += [
       "//chrome/renderer/pepper/pepper_flash_font_file_host.cc",
       "//chrome/renderer/pepper/pepper_flash_font_file_host.h",
@@ -352,6 +370,7 @@ source_set("chrome_spellchecker") {
   sources = []
   deps = []
   libs = []
+  public_deps = []
 
   if (enable_builtin_spellchecker) {
     sources += [
@@ -363,13 +382,12 @@ source_set("chrome_spellchecker") {
       "//chrome/browser/spellchecker/spellcheck_factory.h",
       "//chrome/browser/spellchecker/spellcheck_hunspell_dictionary.cc",
       "//chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h",
-      "//chrome/browser/spellchecker/spellcheck_language_blacklist_policy_handler.cc",
-      "//chrome/browser/spellchecker/spellcheck_language_blacklist_policy_handler.h",
+      "//chrome/browser/spellchecker/spellcheck_language_blocklist_policy_handler.cc",
+      "//chrome/browser/spellchecker/spellcheck_language_blocklist_policy_handler.h",
       "//chrome/browser/spellchecker/spellcheck_language_policy_handler.cc",
       "//chrome/browser/spellchecker/spellcheck_language_policy_handler.h",
       "//chrome/browser/spellchecker/spellcheck_service.cc",
       "//chrome/browser/spellchecker/spellcheck_service.h",
-      "//chrome/common/pref_names.h",
     ]
 
     if (has_spellcheck_panel) {
@@ -392,9 +410,11 @@ source_set("chrome_spellchecker") {
       "//components/spellcheck:buildflags",
       "//components/sync",
     ]
+
+    public_deps += [ "//chrome/common:constants" ]
   }
 
-  public_deps = [
+  public_deps += [
     "//components/spellcheck/browser",
     "//components/spellcheck/common",
     "//components/spellcheck/renderer",

chromium_src/chrome/browser/certificate_manager_model.cc

@@ -36,6 +36,7 @@ net::NSSCertDatabase* GetNSSCertDatabaseForResourceContext(
     // Linux has only a single persistent slot compared to ChromeOS's separate
     // public and private slot.
     // Redirect any slot usage to this persistent slot on Linux.
+    crypto::EnsureNSSInit();
     g_nss_cert_database = new net::NSSCertDatabase(
         crypto::ScopedPK11Slot(PK11_GetInternalKeySlot()) /* public slot */,
         crypto::ScopedPK11Slot(PK11_GetInternalKeySlot()) /* private slot */);
@@ -89,7 +90,7 @@ CertificateManagerModel::~CertificateManagerModel() = default;
 int CertificateManagerModel::ImportFromPKCS12(
     PK11SlotInfo* slot_info,
     const std::string& data,
-    const base::string16& password,
+    const std::u16string& password,
     bool is_extractable,
     net::ScopedCERTCertificateList* imported_certs) {
   return cert_db_->ImportFromPKCS12(slot_info, data, password, is_extractable,

chromium_src/chrome/browser/certificate_manager_model.h

@@ -5,14 +5,12 @@
 #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 {
@@ -46,7 +44,7 @@ class CertificateManagerModel {
   // Returns a net error code on failure.
   int ImportFromPKCS12(PK11SlotInfo* slot_info,
                        const std::string& data,
-                       const base::string16& password,
+                       const std::u16string& password,
                        bool is_extractable,
                        net::ScopedCERTCertificateList* imported_certs);
 

chromium_src/chrome/browser/process_singleton.h

@@ -9,9 +9,6 @@
 #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"
@@ -127,10 +124,11 @@ class ProcessSingleton {
   NotificationCallback notification_callback_;  // Handler for notifications.
 
 #if defined(OS_WIN)
-  HWND remote_window_;               // The HWND_MESSAGE of another browser.
+  HWND remote_window_ = nullptr;     // 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_;
+  bool is_virtualized_ =
+      false;  // Stuck inside Microsoft Softricity VM environment.
+  HANDLE lock_file_ = INVALID_HANDLE_VALUE;
   base::FilePath user_data_dir_;
   ShouldKillRemoteProcessCallback should_kill_remote_process_callback_;
 #elif defined(OS_POSIX) && !defined(OS_ANDROID)
@@ -157,7 +155,7 @@ class ProcessSingleton {
 
   // Function to call when the other process is hung and needs to be killed.
   // Allows overriding for tests.
-  base::Callback<void(int)> kill_callback_;
+  base::RepeatingCallback<void(int)> kill_callback_;
 
   // Path in file system to the socket.
   base::FilePath socket_path_;
@@ -175,7 +173,7 @@ class ProcessSingleton {
   // because it posts messages between threads.
   class LinuxWatcher;
   scoped_refptr<LinuxWatcher> watcher_;
-  int sock_;
+  int sock_ = -1;
   bool listen_on_ready_ = false;
 #endif
 

chromium_src/chrome/browser/process_singleton_posix.cc

@@ -68,7 +68,6 @@
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/path_service.h"
 #include "base/posix/eintr_wrapper.h"
@@ -334,7 +333,7 @@ bool IsChromeProcess(pid_t pid) {
 // A helper class to hold onto a socket.
 class ScopedSocket {
  public:
-  ScopedSocket() : fd_(-1) { Reset(); }
+  ScopedSocket() { Reset(); }
   ~ScopedSocket() { Close(); }
   int fd() { return fd_; }
   void Reset() {
@@ -348,7 +347,7 @@ class ScopedSocket {
   }
 
  private:
-  int fd_;
+  int fd_ = -1;
 };
 
 // Returns a random string for uniquifying profile connections.
@@ -361,7 +360,7 @@ bool CheckCookie(const base::FilePath& path, const base::FilePath& cookie) {
 }
 
 bool IsAppSandboxed() {
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
   // NB: There is no sane API for this, we have to just guess by
   // reading tea leaves
   base::FilePath home_dir;
@@ -372,7 +371,7 @@ bool IsAppSandboxed() {
   return home_dir.value().find("Library/Containers") != std::string::npos;
 #else
   return false;
-#endif  // defined(OS_MACOSX)
+#endif  // defined(OS_MAC)
 }
 
 bool ConnectSocket(ScopedSocket* socket,
@@ -422,7 +421,7 @@ bool ConnectSocket(ScopedSocket* socket,
   }
 }
 
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
 bool ReplaceOldSingletonLock(const base::FilePath& symlink_content,
                              const base::FilePath& lock_path) {
   // Try taking an flock(2) on the file. Failure means the lock is taken so we
@@ -448,14 +447,14 @@ bool ReplaceOldSingletonLock(const base::FilePath& symlink_content,
   // lock. We never flock() the lock file from now on. I.e. we assume that an
   // old version of Chrome will not run with the same user data dir after this
   // version has run.
-  if (!base::DeleteFile(lock_path, false)) {
+  if (!base::DeleteFile(lock_path)) {
     PLOG(ERROR) << "Could not delete old singleton lock.";
     return false;
   }
 
   return SymlinkPath(symlink_content, lock_path);
 }
-#endif  // defined(OS_MACOSX)
+#endif  // defined(OS_MAC)
 
 }  // namespace
 
@@ -474,10 +473,7 @@ class ProcessSingleton::LinuxWatcher
     SocketReader(ProcessSingleton::LinuxWatcher* parent,
                  scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
                  int fd)
-        : parent_(parent),
-          ui_task_runner_(ui_task_runner),
-          fd_(fd),
-          bytes_read_(0) {
+        : parent_(parent), ui_task_runner_(ui_task_runner), fd_(fd) {
       DCHECK_CURRENTLY_ON(BrowserThread::IO);
       // Wait for reads.
       fd_watch_controller_ = base::FileDescriptorWatcher::WatchReadable(
@@ -509,20 +505,20 @@ class ProcessSingleton::LinuxWatcher
         fd_watch_controller_;
 
     // The ProcessSingleton::LinuxWatcher that owns us.
-    ProcessSingleton::LinuxWatcher* const parent_;
+    ProcessSingleton::LinuxWatcher* const parent_ = nullptr;
 
     // A reference to the UI task runner.
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
 
     // The file descriptor we're reading.
-    const int fd_;
+    const int fd_ = -1;
 
     // Store the message in this buffer.
     char buf_[kMaxMessageLength];
 
     // Tracks the number of bytes we've read in case we're getting partial
     // reads.
-    size_t bytes_read_;
+    size_t bytes_read_ = 0;
 
     base::OneShotTimer timer_;
 
@@ -827,10 +823,9 @@ ProcessSingleton::NotifyResult ProcessSingleton::NotifyOtherProcessWithTimeout(
   to_send.append(current_dir.value());
 
   const std::vector<std::string>& argv = electron::ElectronCommandLine::argv();
-  for (std::vector<std::string>::const_iterator it = argv.begin();
-       it != argv.end(); ++it) {
+  for (const auto& arg : argv) {
     to_send.push_back(kTokenDelimiter);
-    to_send.append(*it);
+    to_send.append(arg);
   }
 
   // Send the message
@@ -883,7 +878,7 @@ ProcessSingleton::NotifyResult ProcessSingleton::NotifyOtherProcessOrCreate() {
 }
 
 void ProcessSingleton::StartListeningOnSocket() {
-  watcher_ = new LinuxWatcher(this);
+  watcher_ = base::MakeRefCounted<LinuxWatcher>(this);
   base::PostTask(FROM_HERE, {BrowserThread::IO},
                  base::BindOnce(&ProcessSingleton::LinuxWatcher::StartListening,
                                 watcher_, sock_));
@@ -971,7 +966,7 @@ bool ProcessSingleton::Create() {
   if (!SymlinkPath(symlink_content, lock_path_)) {
     // TODO(jackhou): Remove this case once this code is stable on Mac.
     // http://crbug.com/367612
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
     // On Mac, an existing non-symlink lock file means the lock could be held by
     // the old process singleton code. If we can successfully replace the lock,
     // continue as normal.

chromium_src/chrome/browser/process_singleton_win.cc

@@ -172,8 +172,6 @@ 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)) {

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

@@ -24,22 +24,21 @@ GlobalMenuBarRegistrarX11* GlobalMenuBarRegistrarX11::GetInstance() {
   return base::Singleton<GlobalMenuBarRegistrarX11>::get();
 }
 
-void GlobalMenuBarRegistrarX11::OnWindowMapped(unsigned long xid) {
-  live_xids_.insert(xid);
+void GlobalMenuBarRegistrarX11::OnWindowMapped(x11::Window window) {
+  live_windows_.insert(window);
 
   if (registrar_proxy_)
-    RegisterXID(xid);
+    RegisterXWindow(window);
 }
 
-void GlobalMenuBarRegistrarX11::OnWindowUnmapped(unsigned long xid) {
+void GlobalMenuBarRegistrarX11::OnWindowUnmapped(x11::Window window) {
   if (registrar_proxy_)
-    UnregisterXID(xid);
+    UnregisterXWindow(window);
 
-  live_xids_.erase(xid);
+  live_windows_.erase(window);
 }
 
-GlobalMenuBarRegistrarX11::GlobalMenuBarRegistrarX11()
-    : registrar_proxy_(nullptr) {
+GlobalMenuBarRegistrarX11::GlobalMenuBarRegistrarX11() {
   // 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.
@@ -63,9 +62,9 @@ GlobalMenuBarRegistrarX11::~GlobalMenuBarRegistrarX11() {
   }
 }
 
-void GlobalMenuBarRegistrarX11::RegisterXID(unsigned long xid) {
+void GlobalMenuBarRegistrarX11::RegisterXWindow(x11::Window window) {
   DCHECK(registrar_proxy_);
-  std::string path = electron::GlobalMenuBarX11::GetPathForWindow(xid);
+  std::string path = electron::GlobalMenuBarX11::GetPathForWindow(window);
 
   ANNOTATE_SCOPED_MEMORY_LEAK;  // http://crbug.com/314087
   // TODO(erg): The mozilla implementation goes to a lot of callback trouble
@@ -76,13 +75,13 @@ void GlobalMenuBarRegistrarX11::RegisterXID(unsigned long xid) {
   // I don't see any reason why we should care if "RegisterWindow" completes or
   // not.
   g_dbus_proxy_call(registrar_proxy_, "RegisterWindow",
-                    g_variant_new("(uo)", xid, path.c_str()),
+                    g_variant_new("(uo)", window, path.c_str()),
                     G_DBUS_CALL_FLAGS_NONE, -1, nullptr, nullptr, nullptr);
 }
 
-void GlobalMenuBarRegistrarX11::UnregisterXID(unsigned long xid) {
+void GlobalMenuBarRegistrarX11::UnregisterXWindow(x11::Window window) {
   DCHECK(registrar_proxy_);
-  std::string path = electron::GlobalMenuBarX11::GetPathForWindow(xid);
+  std::string path = electron::GlobalMenuBarX11::GetPathForWindow(window);
 
   ANNOTATE_SCOPED_MEMORY_LEAK;  // http://crbug.com/314087
   // TODO(erg): The mozilla implementation goes to a lot of callback trouble
@@ -93,7 +92,7 @@ void GlobalMenuBarRegistrarX11::UnregisterXID(unsigned long xid) {
   // I don't see any reason why we should care if "UnregisterWindow" completes
   // or not.
   g_dbus_proxy_call(registrar_proxy_, "UnregisterWindow",
-                    g_variant_new("(u)", xid), G_DBUS_CALL_FLAGS_NONE, -1,
+                    g_variant_new("(u)", window), G_DBUS_CALL_FLAGS_NONE, -1,
                     nullptr, nullptr, nullptr);
 }
 
@@ -120,10 +119,9 @@ void GlobalMenuBarRegistrarX11::OnProxyCreated(GObject* source,
 
 void GlobalMenuBarRegistrarX11::OnNameOwnerChanged(GObject* /* ignored */,
                                                    GParamSpec* /* ignored */) {
-  // If the name owner changed, we need to reregister all the live xids with
-  // the system.
-  for (std::set<unsigned long>::const_iterator it = live_xids_.begin();
-       it != live_xids_.end(); ++it) {
-    RegisterXID(*it);
+  // If the name owner changed, we need to reregister all the live x11::Window
+  // with the system.
+  for (const auto& window : live_windows_) {
+    RegisterXWindow(window);
   }
 }

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

@@ -12,19 +12,20 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
 #include "ui/base/glib/glib_signal.h"
+#include "ui/gfx/x/xproto.h"
 
 // Advertises our menu bars to Unity.
 //
 // GlobalMenuBarX11 is responsible for managing the DbusmenuServer for each
-// XID. We need a separate object to own the dbus channel to
+// x11::Window. We need a separate object to own the dbus channel to
 // com.canonical.AppMenu.Registrar and to register/unregister the mapping
-// between a XID and the DbusmenuServer instance we are offering.
+// between a x11::Window and the DbusmenuServer instance we are offering.
 class GlobalMenuBarRegistrarX11 {
  public:
   static GlobalMenuBarRegistrarX11* GetInstance();
 
-  void OnWindowMapped(unsigned long xid);
-  void OnWindowUnmapped(unsigned long xid);
+  void OnWindowMapped(x11::Window window);
+  void OnWindowUnmapped(x11::Window window);
 
  private:
   friend struct base::DefaultSingletonTraits<GlobalMenuBarRegistrarX11>;
@@ -33,8 +34,8 @@ class GlobalMenuBarRegistrarX11 {
   ~GlobalMenuBarRegistrarX11();
 
   // Sends the actual message.
-  void RegisterXID(unsigned long xid);
-  void UnregisterXID(unsigned long xid);
+  void RegisterXWindow(x11::Window window);
+  void UnregisterXWindow(x11::Window window);
 
   CHROMEG_CALLBACK_1(GlobalMenuBarRegistrarX11,
                      void,
@@ -47,11 +48,11 @@ class GlobalMenuBarRegistrarX11 {
                      GObject*,
                      GParamSpec*);
 
-  GDBusProxy* registrar_proxy_;
+  GDBusProxy* registrar_proxy_ = nullptr;
 
-  // Window XIDs which want to be registered, but haven't yet been because
+  // x11::Window which want to be registered, but haven't yet been because
   // we're waiting for the proxy to become available.
-  std::set<unsigned long> live_xids_;
+  std::set<x11::Window> live_windows_;
 
   DISALLOW_COPY_AND_ASSIGN(GlobalMenuBarRegistrarX11);
 };

default_app/default_app.ts

@@ -1,5 +1,6 @@
 import { app, dialog, BrowserWindow, shell, ipcMain } from 'electron';
 import * as path from 'path';
+import * as url from 'url';
 
 let mainWindow: BrowserWindow | null = null;
 
@@ -29,31 +30,29 @@ function isTrustedSender (webContents: Electron.WebContents) {
     return false;
   }
 
-  const parsedUrl = new URL(webContents.getURL());
-  const urlPath = process.platform === 'win32'
-    // Strip the prefixed "/" that occurs on windows
-    ? path.resolve(parsedUrl.pathname.substr(1))
-    : parsedUrl.pathname;
-  return parsedUrl.protocol === 'file:' && urlPath === indexPath;
+  try {
+    return url.fileURLToPath(webContents.getURL()) === indexPath;
+  } catch {
+    return false;
+  }
 }
 
 ipcMain.handle('bootstrap', (event) => {
   return isTrustedSender(event.sender) ? electronPath : null;
 });
 
-async function createWindow () {
+async function createWindow (backgroundColor?: string) {
   await app.whenReady();
 
   const options: Electron.BrowserWindowConstructorOptions = {
     width: 960,
     height: 620,
     autoHideMenuBar: true,
-    backgroundColor: '#2f3241',
+    backgroundColor,
     webPreferences: {
       preload: path.resolve(__dirname, 'preload.js'),
       contextIsolation: true,
-      sandbox: true,
-      enableRemoteModule: false
+      sandbox: true
     },
     useContentSize: true,
     show: false
@@ -96,7 +95,7 @@ export const loadURL = async (appUrl: string) => {
 };
 
 export const loadFile = async (appPath: string) => {
-  mainWindow = await createWindow();
+  mainWindow = await createWindow(appPath === 'index.html' ? '#2f3241' : undefined);
   mainWindow.loadFile(appPath);
   mainWindow.focus();
 };

default_app/index.html

@@ -2,6 +2,7 @@
 
 <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" />
@@ -53,31 +54,31 @@
     <nav>
       <div class="linkcol">
         <a class="hero-link" target="_blank" href="https://electronjs.org/blog">
-          <span class="octicon hero-octicon octicon-gist" aria-hidden="true"></span>
+          <span class="octicon hero-octicon octicon-code-square-24" aria-hidden="true"></span>
           <h4>Blog</h4>
         </a>
       </div>
       <div class="linkcol">
         <a class="hero-link" target="_blank" href="https://github.com/electron/electron">
-          <span class="octicon hero-octicon octicon-mark-github" aria-hidden="true"></span>
+          <span class="octicon hero-octicon octicon-mark-github-16" aria-hidden="true"></span>
           <h4>Repository</h4>
         </a>
       </div>
       <div class="linkcol">
         <a class="hero-link" target="_blank" href="https://electronjs.org/docs">
-          <span class="octicon hero-octicon octicon-gear" aria-hidden="true"></span>
+          <span class="octicon hero-octicon octicon-book-24" aria-hidden="true"></span>
           <h4>Docs</h4>
         </a>
       </div>
       <div class="linkcol">
         <a class="hero-link" target="_blank" href="https://github.com/electron/electron-api-demos">
-          <span class="octicon hero-octicon octicon-star" aria-hidden="true"></span>
+          <span class="octicon hero-octicon octicon-star-fill-24" aria-hidden="true"></span>
           <h4>API Demos</h4>
         </a>
       </div>
       <div class="linkcol">
         <a class="hero-link" target="_blank" href="https://electronforge.io">
-          <span class="octicon hero-octicon octicon-gift" aria-hidden="true"></span>
+          <span class="octicon hero-octicon octicon-gift-24" aria-hidden="true"></span>
           <h4>Forge</h4>
         </a>
       </div>

default_app/main.ts

@@ -1,8 +1,9 @@
-import { app, dialog } from 'electron';
+import * as electron from 'electron';
 
 import * as fs from 'fs';
 import * as path from 'path';
 import * as url from 'url';
+const { app, dialog } = electron;
 
 type DefaultAppOptions = {
   file: null | string;
@@ -145,13 +146,90 @@ function startRepl () {
     process.exit(1);
   }
 
-  // prevent quitting
+  // Prevent quitting.
   app.on('window-all-closed', () => {});
 
-  const repl = require('repl');
-  repl.start('> ').on('exit', () => {
+  const GREEN = '32';
+  const colorize = (color: string, s: string) => `\x1b[${color}m${s}\x1b[0m`;
+  const electronVersion = colorize(GREEN, `v${process.versions.electron}`);
+  const nodeVersion = colorize(GREEN, `v${process.versions.node}`);
+
+  console.info(`
+    Welcome to the Electron.js REPL \\[._.]/
+
+    You can access all Electron.js modules here as well as Node.js modules.
+    Using: Node.js ${nodeVersion} and Electron.js ${electronVersion}
+  `);
+
+  const { REPLServer } = require('repl');
+  const repl = new REPLServer({
+    prompt: '> '
+  }).on('exit', () => {
     process.exit(0);
   });
+
+  function defineBuiltin (context: any, name: string, getter: Function) {
+    const setReal = (val: any) => {
+      // Deleting the property before re-assigning it disables the
+      // getter/setter mechanism.
+      delete context[name];
+      context[name] = val;
+    };
+
+    Object.defineProperty(context, name, {
+      get: () => {
+        const lib = getter();
+
+        delete context[name];
+        Object.defineProperty(context, name, {
+          get: () => lib,
+          set: setReal,
+          configurable: true,
+          enumerable: false
+        });
+
+        return lib;
+      },
+      set: setReal,
+      configurable: true,
+      enumerable: false
+    });
+  }
+
+  defineBuiltin(repl.context, 'electron', () => electron);
+  for (const api of Object.keys(electron) as (keyof typeof electron)[]) {
+    defineBuiltin(repl.context, api, () => electron[api]);
+  }
+
+  // Copied from node/lib/repl.js. For better DX, we don't want to
+  // show e.g 'contentTracing' at a higher priority than 'const', so
+  // we only trigger custom tab-completion when no common words are
+  // potentially matches.
+  const commonWords = [
+    'async', 'await', 'break', 'case', 'catch', 'const', 'continue',
+    'debugger', 'default', 'delete', 'do', 'else', 'export', 'false',
+    'finally', 'for', 'function', 'if', 'import', 'in', 'instanceof', 'let',
+    'new', 'null', 'return', 'switch', 'this', 'throw', 'true', 'try',
+    'typeof', 'var', 'void', 'while', 'with', 'yield'
+  ];
+
+  const electronBuiltins = [...Object.keys(electron), 'original-fs', 'electron'];
+
+  const defaultComplete = repl.completer;
+  repl.completer = (line: string, callback: Function) => {
+    const lastSpace = line.lastIndexOf(' ');
+    const currentSymbol = line.substring(lastSpace + 1, repl.cursor);
+
+    const filterFn = (c: string) => c.startsWith(currentSymbol);
+    const ignores = commonWords.filter(filterFn);
+    const hits = electronBuiltins.filter(filterFn);
+
+    if (!ignores.length && hits.length) {
+      callback(null, [hits, currentSymbol]);
+    } else {
+      defaultComplete.apply(repl, [line, callback]);
+    }
+  };
 }
 
 // Start the specified app if there is one specified in command line, otherwise

default_app/preload.ts

@@ -1,10 +1,15 @@
 import { ipcRenderer, contextBridge } from 'electron';
 
+const policy = window.trustedTypes.createPolicy('electron-default-app', {
+  // we trust the SVG contents
+  createHTML: input => input
+});
+
 async function getOcticonSvg (name: string) {
   try {
     const response = await fetch(`octicon/${name}.svg`);
     const div = document.createElement('div');
-    div.innerHTML = await response.text();
+    div.innerHTML = policy.createHTML(await response.text());
     return div;
   } catch {
     return null;

docs/README.md

@@ -18,27 +18,14 @@ an issue:
 
 ## Guides and Tutorials
 
-* [Setting up the Development Environment](tutorial/development-environment.md)
-  * [Setting up macOS](tutorial/development-environment.md#setting-up-macos)
-  * [Setting up Windows](tutorial/development-environment.md#setting-up-windows)
-  * [Setting up Linux](tutorial/development-environment.md#setting-up-linux)
-  * [Choosing an Editor](tutorial/development-environment.md#a-good-editor)
-* [Creating your First App](tutorial/first-app.md)
-  * [Installing Electron](tutorial/first-app.md#installing-electron)
-  * [Electron Development in a Nutshell](tutorial/first-app.md#electron-development-in-a-nutshell)
-  * [Running Your App](tutorial/first-app.md#running-your-app)
-* [Boilerplates and CLIs](tutorial/boilerplates-and-clis.md)
-  * [Boilerplate vs CLI](tutorial/boilerplates-and-clis.md#boilerplate-vs-cli)
-  * [electron-forge](tutorial/boilerplates-and-clis.md#electron-forge)
-  * [electron-builder](tutorial/boilerplates-and-clis.md#electron-builder)
-  * [electron-react-boilerplate](tutorial/boilerplates-and-clis.md#electron-react-boilerplate)
-  * [Other Tools and Boilerplates](tutorial/boilerplates-and-clis.md#other-tools-and-boilerplates)
-* [Application Architecture](tutorial/application-architecture.md)
-  * [Main and Renderer Processes](tutorial/application-architecture.md#main-and-renderer-processes)
-  * [Using Electron's APIs](tutorial/application-architecture.md#using-electron-apis)
-  * [Using Node.js APIs](tutorial/application-architecture.md#using-nodejs-apis)
-  * [Using Native Node.js Modules](tutorial/using-native-node-modules.md)
-  * [Performance Strategies](tutorial/performance.md)
+### Getting started
+
+* [Introduction](tutorial/introduction.md)
+* [Quick Start](tutorial/quick-start.md)
+* [Process Model](tutorial/process-model.md)
+
+### Learning the basics
+
 * Adding Features to Your App
   * [Notifications](tutorial/notifications.md)
   * [Recent Documents](tutorial/recent-documents.md)
@@ -51,30 +38,38 @@ an issue:
   * [Represented File for macOS BrowserWindows](tutorial/represented-file.md)
   * [Native File Drag & Drop](tutorial/native-file-drag-drop.md)
   * [Offscreen Rendering](tutorial/offscreen-rendering.md)
-  * [Supporting macOS Dark Mode](tutorial/mojave-dark-mode-guide.md)
+  * [Dark Mode](tutorial/dark-mode.md)
   * [Web embeds in Electron](tutorial/web-embeds.md)
+* [Boilerplates and CLIs](tutorial/boilerplates-and-clis.md)
+  * [Boilerplate vs CLI](tutorial/boilerplates-and-clis.md#boilerplate-vs-cli)
+  * [electron-forge](tutorial/boilerplates-and-clis.md#electron-forge)
+  * [electron-builder](tutorial/boilerplates-and-clis.md#electron-builder)
+  * [electron-react-boilerplate](tutorial/boilerplates-and-clis.md#electron-react-boilerplate)
+  * [Other Tools and Boilerplates](tutorial/boilerplates-and-clis.md#other-tools-and-boilerplates)
+
+### Advanced steps
+
+* Application Architecture
+  * [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)
-  * [Spectron](tutorial/accessibility.md#spectron)
-  * [Devtron](tutorial/accessibility.md#devtron)
-  * [Enabling Accessibility](tutorial/accessibility.md#enabling-accessibility)
+  * [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 the Main Process with Visual Studio Code](tutorial/debugging-main-process-vscode.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 with a Custom Driver](tutorial/automated-testing-with-a-custom-driver.md)
+  * [REPL](tutorial/repl.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)
   * [Snapcraft](tutorial/snapcraft.md)
-* [Security](tutorial/security.md)
-  * [Reporting Security Issues](tutorial/security.md#reporting-security-issues)
-  * [Chromium Security Issues and Upgrades](tutorial/security.md#chromium-security-issues-and-upgrades)
-  * [Electron Security Warnings](tutorial/security.md#electron-security-warnings)
-  * [Security Checklist](tutorial/security.md#checklist-security-recommendations)
 * [Updates](tutorial/updates.md)
   * [Deploying an Update Server](tutorial/updates.md#deploying-an-update-server)
   * [Implementing Updates in Your App](tutorial/updates.md#implementing-updates-in-your-app)
@@ -92,14 +87,7 @@ 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)
-  * [App Feedback Program](tutorial/app-feedback-program.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)
-* [Using Pepper Flash Plugin](tutorial/using-pepper-flash-plugin.md)
 
 ---
 
@@ -134,30 +122,35 @@ 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)
 * [Notification](api/notification.md)
 * [powerMonitor](api/power-monitor.md)
 * [powerSaveBlocker](api/power-save-blocker.md)
 * [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)
 * [webContents](api/web-contents.md)
+* [webFrameMain](api/web-frame-main.md)
 
 ### Modules for the Renderer Process (Web Page):
 
-* [desktopCapturer](api/desktop-capturer.md)
+* [contextBridge](api/context-bridge.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)
 

docs/api/accelerator.md

@@ -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` key is mapped to the `Windows` key on Windows and Linux and
+The `Super` (or `Meta`) key is mapped to the `Windows` key on Windows and Linux and
 `Cmd` on macOS.
 
 ## Available modifiers
@@ -48,6 +48,7 @@ The `Super` key is mapped to the `Windows` key on Windows and Linux and
 * `AltGr`
 * `Shift`
 * `Super`
+* `Meta`
 
 ## Available key codes
 

docs/api/app.md

@@ -32,10 +32,12 @@ In most cases, you should do everything in the `ready` event handler.
 
 Returns:
 
-* `launchInfo` unknown _macOS_
+* `event` Event
+* `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` that was used to open the
+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.
@@ -140,6 +142,16 @@ this event, such as launching the application for the first time, attempting
 to re-launch the application when it's already running, or clicking on the
 application's dock or taskbar icon.
 
+### Event: 'did-become-active' _macOS_
+
+Returns:
+
+* `event` Event
+
+Emitted when mac application become active. Difference from `activate` event is
+that `did-become-active` is emitted every time the app becomes active, not only
+when Dock icon is clicked or application is re-launched.
+
 ### Event: 'continue-activity' _macOS_
 
 Returns:
@@ -350,7 +362,7 @@ page.
 
 Emitted whenever there is a GPU info update.
 
-### Event: 'gpu-process-crashed'
+### Event: 'gpu-process-crashed' _Deprecated_
 
 Returns:
 
@@ -359,7 +371,12 @@ Returns:
 
 Emitted when the GPU process crashes or is killed.
 
-### Event: 'renderer-process-crashed'
+**Deprecated:** This event is superceded by the `child-process-gone` event
+which contains more information about why the child process disappeared. It
+isn't always because it crashed. The `killed` boolean can be replaced by
+checking `reason === 'killed'` when you switch to that event.
+
+### Event: 'renderer-process-crashed' _Deprecated_
 
 Returns:
 
@@ -370,11 +387,11 @@ Returns:
 Emitted when the renderer process of `webContents` crashes or is killed.
 
 **Deprecated:** This event is superceded by the `render-process-gone` event
-which contains more information about why the render process dissapeared. It
+which contains more information about why the render process disappeared. It
 isn't always because it crashed.  The `killed` boolean can be replaced by
 checking `reason === 'killed'` when you switch to that event.
 
-#### Event: 'render-process-gone'
+### Event: 'render-process-gone'
 
 Returns:
 
@@ -387,12 +404,46 @@ Returns:
     * `killed` - Process was sent a SIGTERM or otherwise killed externally
     * `crashed` - Process crashed
     * `oom` - Process ran out of memory
-    * `launch-failure` - Process never successfully launched
+    * `launch-failed` - Process never successfully launched
     * `integrity-failure` - Windows code integrity checks failed
+  * `exitCode` Integer - The exit code of the process, unless `reason` is
+    `launch-failed`, in which case `exitCode` will be a platform-specific
+    launch failure error code.
 
-Emitted when the renderer process unexpectedly dissapears.  This is normally
+Emitted when the renderer process unexpectedly disappears.  This is normally
 because it was crashed or killed.
 
+### Event: 'child-process-gone'
+
+Returns:
+
+* `event` Event
+* `details` Object
+  * `type` String - Process type. One of the following values:
+    * `Utility`
+    * `Zygote`
+    * `Sandbox helper`
+    * `GPU`
+    * `Pepper Plugin`
+    * `Pepper Plugin Broker`
+    * `Unknown`
+  * `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
+    * `crashed` - Process crashed
+    * `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
+      (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.
+    Examples for utility: `Audio Service`, `Content Decryption Module Service`, `Network Service`, `Video Capture`, etc.
+
+Emitted when the child process unexpectedly disappears. This is normally
+because it was crashed or killed. It does not include renderer processes.
+
 ### Event: 'accessibility-support-changed' _macOS_ _Windows_
 
 Returns:
@@ -456,64 +507,6 @@ Returns:
 Emitted when `desktopCapturer.getSources()` is called in the renderer process of `webContents`.
 Calling `event.preventDefault()` will make it return empty sources.
 
-### Event: 'remote-require'
-
-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'
-
-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'
-
-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'
-
-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'
-
-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
 
 The `app` object has the following methods:
@@ -634,7 +627,6 @@ Returns `String` - The current application directory.
   * `videos` Directory for a user's videos.
   * `recent` Directory for the user's recent files (Windows only).
   * `logs` Directory for your app's log folder.
-  * `pepperFlashSystemPlugin` Full path to the system version of the Pepper Flash plugin.
   * `crashDumps` Directory where crash dumps are stored.
 
 Returns `String` - A path to a special directory or file associated with `name`. On
@@ -703,7 +695,8 @@ Overrides the current application's name.
 
 ### `app.getLocale()`
 
-Returns `String` - The current application locale. Possible return values are documented [here](locales.md).
+Returns `String` - The current application locale, fetched using Chromium's `l10n_util` library.
+Possible return values are documented [here](https://source.chromium.org/chromium/chromium/src/+/master:ui/base/l10n/l10n_util.cc).
 
 To set the locale, you'll want to use a command line switch at app startup, which may be found [here](https://github.com/electron/electron/blob/master/docs/api/command-line-switches.md).
 
@@ -805,6 +798,21 @@ Returns `String` - Name of the application handling the protocol, or an empty
 This method returns the application name of the default handler for the protocol
 (aka URI scheme) of a URL.
 
+### `app.getApplicationInfoForProtocol(url)` _macOS_ _Windows_
+
+* `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.
+
+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.
+
 ### `app.setUserTasks(tasks)` _Windows_
 
 * `tasks` [Task[]](structures/task.md) - Array of `Task` objects
@@ -864,6 +872,10 @@ 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
@@ -966,6 +978,7 @@ if (!gotTheLock) {
 
   // Create myWindow, load the rest of the app, etc...
   app.whenReady().then(() => {
+    myWindow = createWindow()
   })
 }
 ```
@@ -1029,6 +1042,7 @@ Changes the [Application User Model ID][app-user-model-id] to `id`.
 Sets the activation policy for a given app.
 
 Activation policy types:
+
 * 'regular' - The application is an ordinary app that appears in the Dock and may have a user interface.
 * 'accessory' - The application doesn’t appear in the Dock and doesn’t have a menu bar, but it may be activated programmatically or by clicking on one of its windows.
 * 'prohibited' - The application doesn’t appear in the Dock and may not create windows or be activated.
@@ -1043,7 +1057,7 @@ Activation policy types:
 
 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://code.google.com/p/chromium/codesearch#chromium/src/net/base/net_error_list.h).
+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()`
 
@@ -1080,9 +1094,12 @@ For `infoType` equal to `complete`:
 
 For `infoType` equal to `basic`:
   Promise is fulfilled with `Object` containing fewer attributes than when requested with `complete`. Here's an example of basic response:
+
 ```js
-{ auxAttributes:
-   { amdSwitchable: true,
+{
+  auxAttributes:
+   {
+     amdSwitchable: true,
      canSupportThreadedTextureMailbox: false,
      directComposition: false,
      directRendering: true,
@@ -1095,19 +1112,21 @@ For `infoType` equal to `basic`:
      sandboxed: false,
      softwareRendering: false,
      supportsOverlays: false,
-     videoDecodeAcceleratorFlags: 0 },
-gpuDevice:
-   [ { active: true, deviceId: 26657, vendorId: 4098 },
-     { active: false, deviceId: 3366, vendorId: 32902 } ],
-machineModelName: 'MacBookPro',
-machineModelVersion: '11.5' }
+     videoDecodeAcceleratorFlags: 0
+   },
+  gpuDevice:
+   [{ active: true, deviceId: 26657, vendorId: 4098 },
+     { active: false, deviceId: 3366, vendorId: 32902 }],
+  machineModelName: 'MacBookPro',
+  machineModelVersion: '11.5'
+}
 ```
 
 Using `basic` should be preferred if only basic information like `vendorId` or `driverId` is needed.
 
-### `app.setBadgeCount(count)` _Linux_ _macOS_
+### `app.setBadgeCount([count])` _Linux_ _macOS_
 
-* `count` Integer
+* `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.
 
@@ -1152,6 +1171,13 @@ Returns `Object`:
   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.
+* `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.
 
 ### `app.setLoginItemSettings(settings)` _macOS_ _Windows_
 
@@ -1167,7 +1193,9 @@ Returns `Object`:
   * `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.
+    Defaults to `true`.
+  * `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],
@@ -1222,7 +1250,7 @@ Show the app's about panel options. These options can be overridden with `app.se
   * `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. On Linux, will be shown as 64x64 pixels while retaining aspect ratio.
+  * `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.
 
@@ -1267,7 +1295,7 @@ systems Application folder. Use in combination with `app.moveToApplicationsFolde
 ### `app.moveToApplicationsFolder([options])` _macOS_
 
 * `options` Object (optional)
-  * `conflictHandler` Function<Boolean> (optional) - A handler for potential conflict in move failure.
+  * `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
@@ -1283,7 +1311,7 @@ method returns false. If we fail to perform the copy, then this method will
 throw an error. The message in the error should be informative and tell
 you exactly what went wrong.
 
-By default, if an app of the same name as the one being moved exists in the Applications directory and is _not_ running, the existing app will be trashed and the active app moved into its place. If it _is_ running, the pre-existing running app will assume focus and the the previously active app will quit itself. This behavior can be changed by providing the optional conflict handler, where the boolean returned by the handler determines whether or not the move conflict is resolved with default behavior.  i.e. returning `false` will ensure no further action is taken, returning `true` will result in the default behavior and the method continuing.
+By default, if an app of the same name as the one being moved exists in the Applications directory and is _not_ running, the existing app will be trashed and the active app moved into its place. If it _is_ running, the pre-existing running app will assume focus and the previously active app will quit itself. This behavior can be changed by providing the optional conflict handler, where the boolean returned by the handler determines whether or not the move conflict is resolved with default behavior.  i.e. returning `false` will ensure no further action is taken, returning `true` will result in the default behavior and the method continuing.
 
 For example:
 
@@ -1399,15 +1427,26 @@ This is the user agent that will be used when no user agent is set at the
 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.allowRendererProcessReuse`
+### `app.runningUnderRosettaTranslation` _macOS_ _Readonly_ _Deprecated_
 
-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 `false`.
+A `Boolean` which when `true` indicates that the app is currently running
+under the [Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta_(software)).
 
-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).
+You can use this property to prompt users to download the arm64 version of
+your application when they are running the x64 version under Rosetta
+incorrectly.
+
+**Deprecated:** This property is superceded by the `runningUnderARM64Translation`
+property which detects when the app is being translated to ARM64 in both macOS
+and Windows.
+
+### `app.runningUnderARM64Translation` _Readonly_ _macOS_ _Windows_
+
+A `Boolean` which when `true` indicates that the app is currently running under
+an ARM64 translator (like the macOS
+[Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta_(software))
+or Windows [WOW](https://en.wikipedia.org/wiki/Windows_on_Windows)).
+
+You can use this property to prompt users to download the arm64 version of
+your application when they are running the x64 version under Rosetta
+incorrectly.

docs/api/auto-updater.md

@@ -104,7 +104,7 @@ The `autoUpdater` object has the following methods:
 * `options` Object
   * `url` String
   * `headers` Record<String, String> (optional) _macOS_ - HTTP request headers.
-  * `serverType` String (optional) _macOS_ - Either `json` or `default`, see the [Squirrel.Mac][squirrel-mac]
+  * `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.
@@ -118,6 +118,9 @@ Returns `String` - The current update feed URL.
 Asks the server whether there is an update. You must call `setFeedURL` before
 using this API.
 
+**Note:** If an update is available it will be downloaded automatically.
+Calling `autoUpdater.checkForUpdates()` twice will download the update two times.
+
 ### `autoUpdater.quitAndInstall()`
 
 Restarts the app and installs the update after it has been downloaded. It

docs/api/browser-view.md

@@ -1,14 +1,16 @@
-## Class: BrowserView
-
-> Create and control views.
-
-Process: [Main](../glossary.md#main-process)
+# 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)
+
 ### Example
 
 ```javascript
@@ -28,25 +30,6 @@ view.webContents.loadURL('https://electronjs.org')
 * `options` Object (optional)
   * `webPreferences` Object (optional) - See [BrowserWindow](browser-window.md).
 
-### Static Methods
-
-#### `BrowserView.getAllViews()`
-
-Returns `BrowserView[]` - An array of all opened BrowserViews.
-
-#### `BrowserView.fromWebContents(webContents)`
-
-* `webContents` [WebContents](web-contents.md)
-
-Returns `BrowserView | null` - The BrowserView that owns the given `webContents`
-or `null` if the contents are not owned by a BrowserView.
-
-#### `BrowserView.fromId(id)`
-
-* `id` Integer
-
-Returns `BrowserView` - The view with the given `id`.
-
 ### Instance Properties
 
 Objects created with `new BrowserView` have the following properties:
@@ -55,24 +38,10 @@ Objects created with `new BrowserView` have the following properties:
 
 A [`WebContents`](web-contents.md) object owned by this view.
 
-#### `view.id` _Experimental_
-
-A `Integer` representing the unique ID of the view.
-
 ### Instance Methods
 
 Objects created with `new BrowserView` have the following instance methods:
 
-#### `view.destroy()`
-
-Force closing the view, the `unload` and `beforeunload` events won't be emitted
-for the web page. After you're done with a view, call this function in order to
-free memory and other resources as soon as possible.
-
-#### `view.isDestroyed()`
-
-Returns `Boolean` - Whether the view is destroyed.
-
 #### `view.setAutoResize(options)` _Experimental_
 
 * `options` Object

docs/api/browser-window.md

@@ -8,16 +8,13 @@ Process: [Main](../glossary.md#main-process)
 // In the main process.
 const { BrowserWindow } = require('electron')
 
-// Or use `remote` from the renderer process.
-// const { BrowserWindow } = require('electron').remote
-
 const win = new BrowserWindow({ width: 800, height: 600 })
 
 // Load a remote URL
 win.loadURL('https://github.com')
 
 // Or load a local HTML file
-win.loadURL(`file://${__dirname}/app/index.html`)
+win.loadFile('index.html')
 ```
 
 ## Frameless window
@@ -38,7 +35,7 @@ the window after this event will have no visual flash:
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow({ show: false })
+const win = new BrowserWindow({ show: false })
 win.once('ready-to-show', () => {
   win.show()
 })
@@ -60,7 +57,7 @@ immediately, and use a `backgroundColor` close to your app's background:
 ```javascript
 const { BrowserWindow } = require('electron')
 
-let win = new BrowserWindow({ backgroundColor: '#2e2c29' })
+const win = new BrowserWindow({ backgroundColor: '#2e2c29' })
 win.loadURL('https://github.com')
 ```
 
@@ -74,8 +71,8 @@ By using `parent` option, you can create child windows:
 ```javascript
 const { BrowserWindow } = require('electron')
 
-let top = new BrowserWindow()
-let child = new BrowserWindow({ parent: top })
+const top = new BrowserWindow()
+const child = new BrowserWindow({ parent: top })
 child.show()
 top.show()
 ```
@@ -90,7 +87,7 @@ window, you have to set both `parent` and `modal` options:
 ```javascript
 const { BrowserWindow } = require('electron')
 
-let child = new BrowserWindow({ parent: top, modal: true, show: false })
+const child = new BrowserWindow({ parent: top, modal: true, show: false })
 child.loadURL('https://github.com')
 child.once('ready-to-show', () => {
   child.show()
@@ -207,11 +204,15 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
   * `opacity` Number (optional) - Set the initial opacity of the window, between 0.0 (fully
     transparent) and 1.0 (fully opaque). This is only implemented on Windows and macOS.
   * `darkTheme` Boolean (optional) - Forces using dark theme for the window, only works on
-    some GTK desktop environments. Default is [`nativeTheme.shouldUseDarkColors`](native-theme.md).
+    some GTK+3 desktop environments. Default is `false`.
   * `transparent` Boolean (optional) - Makes the window [transparent](frameless-window.md#transparent-window).
     Default is `false`. On Windows, does not work unless the window is frameless.
   * `type` String (optional) - The type of window, default is normal window. See more about
     this below.
+  * `visualEffectState` String (optional) - Specify how the material appearance should reflect window activity state on macOS. Must be used with the `vibrancy` property. Possible values are:
+    * `followWindow` - The backdrop should automatically appear active when the window is active, and inactive when it is not. This is the default.
+    * `active` - The backdrop should always appear active.
+    * `inactive` - The backdrop should always appear inactive.
   * `titleBarStyle` String (optional) - The style of window title bar.
     Default is `default`. Possible values are:
     * `default` - Results in the standard gray opaque Mac title
@@ -221,21 +222,23 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
       the top left.
     * `hiddenInset` - Results in a hidden title bar with an alternative look
       where the traffic light buttons are slightly more inset from the window edge.
-    * `customButtonsOnHover` Boolean (optional) - Draw custom close,
-      and minimize buttons on macOS frameless windows. These buttons will not display
-      unless hovered over in the top left of the window. These custom buttons prevent
-      issues with mouse events that occur with the standard window toolbar buttons.
-      **Note:** This option is currently experimental.
-  * `trafficLightPosition` [Point](structures/point.md) (optional) - Set a custom position for the traffic light buttons. Can only be used with `titleBarStyle` set to `hidden`
-  * `fullscreenWindowTitle` Boolean (optional) - Shows the title in the
-    title bar in full screen mode on macOS for all `titleBarStyle` options.
+    * `customButtonsOnHover` - Results in a hidden title bar and a full size
+      content window, the traffic light buttons will display when being hovered
+      over in the top left of the window.  **Note:** This option is currently
+      experimental.
+  * `trafficLightPosition` [Point](structures/point.md) (optional) - Set a
+    custom position for the traffic light buttons in frameless windows.
+  * `roundedCorners` Boolean (optional) - Whether frameless window should have
+    rounded corners on macOS. Default is `true`.
+  * `fullscreenWindowTitle` Boolean (optional) _Deprecated_ - Shows the title in
+    the title bar in full screen mode on macOS for `hiddenInset` titleBarStyle.
     Default is `false`.
   * `thickFrame` Boolean (optional) - Use `WS_THICKFRAME` style for frameless windows on
     Windows, which adds standard window frame. Setting it to `false` will remove
     window shadow and window animations. Default is `true`.
   * `vibrancy` String (optional) - Add a type of vibrancy effect to the window, only on
     macOS. Can be `appearance-based`, `light`, `dark`, `titlebar`, `selection`,
-    `menu`, `popover`, `sidebar`, `medium-light`, `ultra-dark`, `header`, `sheet`, `window`, `hud`, `fullscreen-ui`, `tooltip`, `content`, `under-window`, or `under-page`.  Please note that using `frame: false` in combination with a vibrancy value requires that you use a non-default `titleBarStyle` as well. Also note that `appearance-based`, `light`, `dark`, `medium-light`, and `ultra-dark` have been deprecated and will be removed in an upcoming version of macOS.
+    `menu`, `popover`, `sidebar`, `medium-light`, `ultra-dark`, `header`, `sheet`, `window`, `hud`, `fullscreen-ui`, `tooltip`, `content`, `under-window`, or `under-page`. Please note that `appearance-based`, `light`, `dark`, `medium-light`, and `ultra-dark` are deprecated and have been removed in macOS Catalina (10.15).
   * `zoomToPageWidth` Boolean (optional) - Controls the behavior on macOS when
     option-clicking the green stoplight button on the toolbar or by clicking the
     Window > Zoom menu item. If `true`, the window will grow to the preferred
@@ -264,14 +267,12 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
       be the absolute file path to the script.
       When node integration is turned off, the preload script can reintroduce
       Node global symbols back to the global scope. See example
-      [here](process.md#event-loaded).
+      [here](context-bridge.md#exposing-node-global-symbols).
     * `sandbox` Boolean (optional) - If set, this will sandbox the renderer
       associated with the window, making it compatible with the Chromium
       OS-level sandbox and disabling the Node.js engine. This is not the same as
       the `nodeIntegration` option and the APIs available to the preload script
-      are more limited. Read more about the option [here](sandbox-option.md).
-    * `enableRemoteModule` Boolean (optional) - Whether to enable the [`remote`](remote.md) module.
-      Default is `true`.
+      are more limited. Read more about the option [here](../tutorial/sandbox.md).
     * `session` [Session](session.md#class-session) (optional) - Sets the session used by the
       page. Instead of passing the Session object directly, you can also choose to
       use the `partition` option instead, which accepts a partition string. When
@@ -283,13 +284,6 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
       same `partition`. If there is no `persist:` prefix, the page will use an
       in-memory session. By assigning the same `partition`, multiple pages can share
       the same session. Default is the default session.
-    * `affinity` String (optional) - When specified, web pages with the same
-      `affinity` will run in the same renderer process. Note that due to reusing
-      the renderer process, certain `webPreferences` options will also be shared
-      between the web pages even when you specified different values for them,
-      including but not limited to `preload`, `sandbox` and `nodeIntegration`.
-      So it is suggested to use exact same `webPreferences` for web pages with
-      the same `affinity`. _Deprecated_
     * `zoomFactor` Number (optional) - The default zoom factor of the page, `3.0` represents
       `300%`. Default is `1.0`.
     * `javascript` Boolean (optional) - Enables JavaScript support. Default is `true`.
@@ -300,6 +294,7 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
     * `allowRunningInsecureContent` Boolean (optional) - Allow an https page to run
       JavaScript, CSS or plugins from http URLs. Default is `false`.
     * `images` Boolean (optional) - Enables image support. Default is `true`.
+    * `imageAnimationPolicy` String (optional) - Specifies how to run image animations (E.g. GIFs).  Can be `animate`, `animateOnce` or `noAnimation`.  Default is `animate`.
     * `textAreasAreResizable` Boolean (optional) - Make TextArea elements resizable. Default
       is `true`.
     * `webgl` Boolean (optional) - Enables WebGL support. Default is `true`.
@@ -336,22 +331,20 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
       more details.
     * `contextIsolation` Boolean (optional) - Whether to run Electron APIs and
       the specified `preload` script in a separate JavaScript context. Defaults
-      to `false`. The context that the `preload` script runs in will still
-      have full access to the `document` and `window` globals but it will use
-      its own set of JavaScript builtins (`Array`, `Object`, `JSON`, etc.)
-      and will be isolated from any changes made to the global environment
-      by the loaded page. The Electron API will only be available in the
-      `preload` script and not the loaded page. This option should be used when
-      loading potentially untrusted remote content to ensure the loaded content
-      cannot tamper with the `preload` script and any Electron APIs being used.
-      This option uses the same technique used by [Chrome Content Scripts][chrome-content-scripts].
-      You can access this context in the dev tools by selecting the
-      'Electron Isolated Context' entry in the combo box at the top of the
-      Console tab.
+      to `true`. The context that the `preload` script runs in will only have
+      access to its own dedicated `document` and `window` globals, as well as
+      its own set of JavaScript builtins (`Array`, `Object`, `JSON`, etc.),
+      which are all invisible to the loaded content. The Electron API will only
+      be available in the `preload` script and not the loaded page. This option
+      should be used when loading potentially untrusted remote content to ensure
+      the loaded content cannot tamper with the `preload` script and any
+      Electron APIs being used.  This option uses the same technique used by
+      [Chrome Content Scripts][chrome-content-scripts].  You can access this
+      context in the dev tools by selecting the 'Electron Isolated Context'
+      entry in the combo box at the top of the Console tab.
     * `nativeWindowOpen` Boolean (optional) - Whether to use native
-      `window.open()`. Defaults to `false`. Child windows will always have node
-      integration disabled unless `nodeIntegrationInSubFrames` is true. **Note:** This option is currently
-      experimental.
+      `window.open()`. Defaults to `true`. Child windows will always have node
+      integration disabled unless `nodeIntegrationInSubFrames` is true.
     * `webviewTag` Boolean (optional) - Whether to enable the [`<webview>` tag](webview-tag.md).
       Defaults to `false`. **Note:** The
       `preload` script configured for the `<webview>` will have node integration
@@ -387,6 +380,18 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
       Default is `true`.
     * `enableWebSQL` Boolean (optional) - Whether to enable the [WebSQL api](https://www.w3.org/TR/webdatabase/).
       Default is `true`.
+    * `v8CacheOptions` String (optional) - Enforces the v8 code caching policy
+      used by blink. Accepted values are
+      * `none` - Disables code caching
+      * `code` - Heuristic based code caching
+      * `bypassHeatCheck` - Bypass code caching heuristics but with lazy compilation
+      * `bypassHeatCheckAndEagerCompile` - Same as above except compilation is eager.
+      Default policy is `code`.
+    * `enablePreferredSizeMode` Boolean (optional) - Whether to enable
+      preferred size mode. The preferred size is the minimum size needed to
+      contain the layout of the document—without requiring scrolling. Enabling
+      this will cause the `preferred-size-changed` event to be emitted on the
+      `WebContents` when the preferred size changes. Default is `false`.
 
 When setting minimum or maximum window size with `minWidth`/`maxWidth`/
 `minHeight`/`maxHeight`, it only constrains the users. It won't prevent you from
@@ -452,6 +457,7 @@ window.onbeforeunload = (e) => {
   e.returnValue = false // equivalent to `return false` but not recommended
 }
 ```
+
 _**Note**: There is a subtle difference between the behaviors of `window.onbeforeunload = handler` and `window.addEventListener('beforeunload', handler)`. It is recommended to always set the `event.returnValue` explicitly, instead of only returning a value, as the former works more consistently within Electron._
 
 #### Event: 'closed'
@@ -518,15 +524,30 @@ Returns:
 
 * `event` Event
 * `newBounds` [Rectangle](structures/rectangle.md) - Size the window is being resized to.
+* `details` Object
+  * `edge` (String) - The edge of the window being dragged for resizing. Can be `bottom`, `left`, `right`, `top-left`, `top-right`, `bottom-left` or `bottom-right`.
 
 Emitted before the window is resized. Calling `event.preventDefault()` will prevent the window from being resized.
 
 Note that this is only emitted when the window is being resized manually. Resizing the window with `setBounds`/`setSize` will not emit this event.
 
+The possible values and behaviors of the `edge` option are platform dependent. Possible values are:
+
+* On Windows, possible values are `bottom`, `top`, `left`, `right`, `top-left`, `top-right`, `bottom-left`, `bottom-right`.
+* On macOS, possible values are `bottom` and `right`.
+  * The value `bottom` is used to denote vertical resizing.
+  * The value `right` is used to denote horizontal resizing.
+
 #### Event: 'resize'
 
 Emitted after the window has been resized.
 
+#### Event: 'resized' _macOS_ _Windows_
+
+Emitted once when the window has finished being resized.
+
+This is usually emitted when the window has been resized manually. On macOS, resizing the window with `setBounds`/`setSize` and setting the `animate` parameter to `true` will also emit this event once resizing has finished.
+
 #### Event: 'will-move' _macOS_ _Windows_
 
 Returns:
@@ -542,12 +563,12 @@ Note that this is only emitted when the window is being resized manually. Resizi
 
 Emitted when the window is being moved to a new position.
 
-__Note__: On macOS this event is an alias of `moved`.
-
-#### Event: 'moved' _macOS_
+#### Event: 'moved' _macOS_ _Windows_
 
 Emitted once when the window is moved to a new position.
 
+__Note__: On macOS this event is an alias of `move`.
+
 #### Event: 'enter-full-screen'
 
 Emitted when the window enters a full-screen state.
@@ -590,7 +611,7 @@ e.g. `APPCOMMAND_BROWSER_BACKWARD` is emitted as `browser-backward`.
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow()
+const win = new BrowserWindow()
 win.on('app-command', (e, cmd) => {
   // Navigate the window back when the user hits their mouse back button
   if (cmd === 'browser-backward' && win.webContents.canGoBack()) {
@@ -656,6 +677,20 @@ Emitted when the window has closed a sheet.
 
 Emitted when the native new tab button is clicked.
 
+#### Event: 'system-context-menu' _Windows_
+
+Returns:
+
+* `event` Event
+* `point` [Point](structures/point.md) - The screen coordinates the context menu was triggered at
+
+Emitted when the system context menu is triggered on the window, this is
+normally only triggered when the user right clicks on the non-client area
+of your window.  This is the window titlebar or any area you have declared
+as `-webkit-app-region: drag` in a frameless window.
+
+Calling `event.preventDefault()` will prevent the menu from being displayed.
+
 ### Static Methods
 
 The `BrowserWindow` class has the following static methods:
@@ -685,95 +720,7 @@ Returns `BrowserWindow | null` - The window that owns the given `browserView`. I
 
 * `id` Integer
 
-Returns `BrowserWindow` - The window with the given `id`.
-
-#### `BrowserWindow.addExtension(path)` _Deprecated_
-
-* `path` String
-
-Adds Chrome extension located at `path`, and returns extension's name.
-
-The method will also not return if the extension's manifest is missing or incomplete.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.loadExtension(path)`](session.md#sesloadextensionpath).
-
-#### `BrowserWindow.removeExtension(name)` _Deprecated_
-
-* `name` String
-
-Remove a Chrome extension by name.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.removeExtension(extension_id)`](session.md#sesremoveextensionextensionid).
-
-#### `BrowserWindow.getExtensions()` _Deprecated_
-
-Returns `Record<String, ExtensionInfo>` - The keys are the extension names and each value is
-an Object containing `name` and `version` properties.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.getAllExtensions()`](session.md#sesgetallextensions).
-
-#### `BrowserWindow.addDevToolsExtension(path)` _Deprecated_
-
-* `path` String
-
-Adds DevTools extension located at `path`, and returns extension's name.
-
-The extension will be remembered so you only need to call this API once, this
-API is not for programming use. If you try to add an extension that has already
-been loaded, this method will not return and instead log a warning to the
-console.
-
-The method will also not return if the extension's manifest is missing or incomplete.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.loadExtension(path)`](session.md#sesloadextensionpath).
-
-#### `BrowserWindow.removeDevToolsExtension(name)` _Deprecated_
-
-* `name` String
-
-Remove a DevTools extension by name.
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.removeExtension(extension_id)`](session.md#sesremoveextensionextensionid).
-
-#### `BrowserWindow.getDevToolsExtensions()` _Deprecated_
-
-Returns `Record<string, ExtensionInfo>` - The keys are the extension names and each value is
-an Object containing `name` and `version` properties.
-
-To check if a DevTools extension is installed you can run the following:
-
-```javascript
-const { BrowserWindow } = require('electron')
-
-let installed = BrowserWindow.getDevToolsExtensions().hasOwnProperty('devtron')
-console.log(installed)
-```
-
-**Note:** This API cannot be called before the `ready` event of the `app` module
-is emitted.
-
-**Note:** This method is deprecated. Instead, use
-[`ses.getAllExtensions()`](session.md#sesgetallextensions).
+Returns `BrowserWindow | null` - The window with the given `id`.
 
 ### Instance Properties
 
@@ -782,7 +729,7 @@ Objects created with `new BrowserWindow` have the following properties:
 ```javascript
 const { BrowserWindow } = require('electron')
 // In this example `win` is our instance
-let win = new BrowserWindow({ width: 800, height: 600 })
+const win = new BrowserWindow({ width: 800, height: 600 })
 win.loadURL('https://github.com')
 ```
 
@@ -813,6 +760,10 @@ A `Boolean` property that determines whether the window is in simple (pre-Lion)
 
 A `Boolean` property that determines whether the window is in fullscreen mode.
 
+#### `win.focusable` _Windows_ _macOS_
+
+A `Boolean` property that determines whether the window is focusable.
+
 #### `win.visibleOnAllWorkspaces`
 
 A `Boolean` property that determines whether the window is visible on all workspaces.
@@ -829,7 +780,7 @@ A `Boolean` property that determines whether the menu bar should be visible.
 
 **Note:** If the menu bar is auto-hide, users can still bring up the menu bar by pressing the single `Alt` key.
 
-####  `win.kiosk`
+#### `win.kiosk`
 
 A `Boolean` property that determines whether the window is in kiosk mode.
 
@@ -1015,11 +966,11 @@ Returns `Boolean` - Whether the window is in simple (pre-Lion) fullscreen mode.
 
 Returns `Boolean` - Whether the window is in normal state (not maximized, not minimized, not in fullscreen mode).
 
-#### `win.setAspectRatio(aspectRatio[, extraSize])` _macOS_ _Linux_
+#### `win.setAspectRatio(aspectRatio[, extraSize])`
 
 * `aspectRatio` Float - The aspect ratio to maintain for some portion of the
 content view.
- * `extraSize` [Size](structures/size.md) (optional) _macOS_ - The extra size not to be included while
+* `extraSize` [Size](structures/size.md) (optional) _macOS_ - The extra size not to be included while
 maintaining the aspect ratio.
 
 This will make a window maintain an aspect ratio. The extra size allows a
@@ -1036,6 +987,9 @@ the player itself we would call this function with arguments of 16/9 and
 are within the content view--only that they exist. Sum any extra width and
 height areas you have within the overall content view.
 
+The aspect ratio is not respected when window is resized programmingly with
+APIs like `win.setSize`.
+
 #### `win.setBackgroundColor(backgroundColor)`
 
 * `backgroundColor` String - Window's background color as a hexadecimal value,
@@ -1116,7 +1070,7 @@ Disable or enable the window.
 
 #### `win.isEnabled()`
 
-Returns Boolean - whether the window is enabled.
+Returns `Boolean` - whether the window is enabled.
 
 #### `win.setSize(width, height[, animate])`
 
@@ -1307,9 +1261,9 @@ a HTML-rendered toolbar. For example:
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow()
+const win = new BrowserWindow()
 
-let toolbarRect = document.getElementById('toolbar').getBoundingClientRect()
+const toolbarRect = document.getElementById('toolbar').getBoundingClientRect()
 win.setSheetOffset(toolbarRect.height)
 ```
 
@@ -1335,9 +1289,20 @@ Enters or leaves kiosk mode.
 
 Returns `Boolean` - Whether the window is in kiosk mode.
 
+#### `win.isTabletMode()` _Windows_
+
+Returns `Boolean` - Whether the window is in Windows 10 tablet mode.
+
+Since Windows 10 users can [use their PC as tablet](https://support.microsoft.com/en-us/help/17210/windows-10-use-your-pc-like-a-tablet),
+under this mode apps can choose to optimize their UI for tablets, such as
+enlarging the titlebar and hiding titlebar buttons.
+
+This API returns whether the window is in tablet mode, and the `resize` event
+can be be used to listen to changes to tablet mode.
+
 #### `win.getMediaSourceId()`
 
-Returns `String` - Window id in the format of DesktopCapturerSource's id. For example "window:1234:0".
+Returns `String` - Window id in the format of DesktopCapturerSource's id. For example "window:1324:0".
 
 More precisely the format is `window:id:other_id` where `id` is `HWND` on
 Windows, `CGWindowID` (`uint64_t`) on macOS and `Window` (`unsigned long`) on
@@ -1355,6 +1320,8 @@ The native type of the handle is `HWND` on Windows, `NSView*` on macOS, and
 
 * `message` Integer
 * `callback` Function
+  * `wParam` any - The `wParam` provided to the WndProc
+  * `lParam` any - The `lParam` provided to the WndProc
 
 Hooks a windows message. The `callback` is called when
 the message is received in the WndProc.
@@ -1407,7 +1374,7 @@ Returns `Boolean` - Whether the window's document has been edited.
 
 Returns `Promise<NativeImage>` - Resolves with a [NativeImage](native-image.md)
 
-Captures a snapshot of the page within `rect`. Omitting `rect` will capture the whole visible page.
+Captures a snapshot of the page within `rect`. Omitting `rect` will capture the whole visible page. If the page is not visible, `rect` may be empty.
 
 #### `win.loadURL(url[, options])`
 
@@ -1416,7 +1383,7 @@ Captures a snapshot of the page within `rect`. Omitting `rect` will capture the
   * `httpReferrer` (String | [Referrer](structures/referrer.md)) (optional) - An HTTP Referrer URL.
   * `userAgent` String (optional) - A user agent originating the request.
   * `extraHeaders` String (optional) - Extra headers separated by "\n"
-  * `postData` ([UploadRawData[]](structures/upload-raw-data.md) | [UploadFile[]](structures/upload-file.md) | [UploadBlob[]](structures/upload-blob.md)) (optional)
+  * `postData` ([UploadRawData](structures/upload-raw-data.md) | [UploadFile](structures/upload-file.md))[] (optional)
   * `baseURLForDataURL` String (optional) - Base URL (with trailing path separator) for files to be loaded by the data URL. This is needed only if the specified `url` is a data URL and needs to load other files.
 
 Returns `Promise<void>` - the promise will resolve when the page has finished loading
@@ -1433,7 +1400,7 @@ Node's [`url.format`](https://nodejs.org/api/url.html#url_url_format_urlobject)
 method:
 
 ```javascript
-let url = require('url').format({
+const url = require('url').format({
   protocol: 'file',
   slashes: true,
   pathname: require('path').join(__dirname, 'index.html')
@@ -1634,8 +1601,6 @@ Changes window icon.
 
 Sets whether the window traffic light buttons should be visible.
 
-This cannot be called when `titleBarStyle` is set to `customButtonsOnHover`.
-
 #### `win.setAutoHideMenuBar(hide)`
 
 * `hide` Boolean
@@ -1659,9 +1624,19 @@ Sets whether the menu bar should be visible. If the menu bar is auto-hide, users
 
 Returns `Boolean` - Whether the menu bar is visible.
 
-#### `win.setVisibleOnAllWorkspaces(visible)`
+#### `win.setVisibleOnAllWorkspaces(visible[, options])`
 
 * `visible` Boolean
+* `options` Object (optional)
+  * `visibleOnFullScreen` Boolean (optional) _macOS_ - Sets whether
+    the window should be visible above fullscreen windows.
+  * `skipTransformProcessType` Boolean (optional) _macOS_ - Calling
+    setVisibleOnAllWorkspaces will by default transform the process
+    type between UIElementApplication and ForegroundApplication to
+    ensure the correct behavior. However, this will hide the window
+    and dock for a short time every time it is called. If your window
+    is already of type UIElementApplication, you can bypass this
+    transformation by passing true to skipTransformProcessType.
 
 Sets whether the window should be visible on all workspaces.
 
@@ -1695,7 +1670,9 @@ events.
 Prevents the window contents from being captured by other apps.
 
 On macOS it sets the NSWindow's sharingType to NSWindowSharingNone.
-On Windows it calls SetWindowDisplayAffinity with `WDA_MONITOR`.
+On Windows it calls SetWindowDisplayAffinity with `WDA_EXCLUDEFROMCAPTURE`.
+For Windows 10 version 2004 and up the window will be removed from capture entirely,
+older Windows versions behave as if `WDA_MONITOR` is applied capturing a black window.
 
 #### `win.setFocusable(focusable)` _macOS_ _Windows_
 
@@ -1705,6 +1682,10 @@ Changes whether the window can be focused.
 
 On macOS it does not remove the focus from the window.
 
+#### `win.isFocusable()` _macOS_ _Windows_
+
+Returns whether the window can be focused.
+
 #### `win.setParentWindow(parent)`
 
 * `parent` BrowserWindow | null
@@ -1773,12 +1754,12 @@ deprecated and will be removed in an upcoming version of macOS.
 
 * `position` [Point](structures/point.md)
 
-Set a custom position for the traffic light buttons. Can only be used with `titleBarStyle` set to `hidden`.
+Set a custom position for the traffic light buttons in frameless window.
 
 #### `win.getTrafficLightPosition()` _macOS_
 
-Returns `Point` - The current position for the traffic light buttons. Can only be used with `titleBarStyle`
-set to `hidden`.
+Returns `Point` - The custom position for the traffic light buttons in
+frameless window.
 
 #### `win.setTouchBar(touchBar)` _macOS_
 
@@ -1812,6 +1793,13 @@ Replacement API for setBrowserView supporting work with multi browser views.
 
 * `browserView` [BrowserView](browser-view.md)
 
+#### `win.setTopBrowserView(browserView)` _Experimental_
+
+* `browserView` [BrowserView](browser-view.md)
+
+Raises `browserView` above other `BrowserView`s attached to `win`.
+Throws an error if `browserView` is not attached to `win`.
+
 #### `win.getBrowserViews()` _Experimental_
 
 Returns `BrowserView[]` - an array of all BrowserViews that have been attached

docs/api/client-request.md

@@ -13,30 +13,41 @@ interface and is therefore an [EventEmitter][event-emitter].
 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.
+    method.
   * `url` String (optional) - The request URL. Must be provided in the absolute
-form with the protocol scheme specified as http or https.
+    form with the protocol scheme specified as http or https.
   * `session` Session (optional) - The [`Session`](session.md) instance with
-which the request is associated.
+    which the request is associated.
   * `partition` String (optional) - The name of the [`partition`](session.md)
-  with which the request is associated. Defaults to the empty string. The
-`session` option prevails on `partition`. Thus if a `session` is explicitly
-specified, `partition` is ignored.
+    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
+    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
+    with the request (and the `'login'` event will not be triggered in the
+    event of a 401). This matches the behavior of the
+    [fetch](https://fetch.spec.whatwg.org/#concept-request-credentials-mode)
+    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
-    request from the provided session.  This will make the `net` request's
-    cookie behavior match a `fetch` request. Default is `false`.
-  * `protocol` String (optional) - The protocol scheme in the form 'scheme:'.
-Currently supported values are 'http:' or 'https:'. Defaults to 'http:'.
+    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
+    scheme in the form 'scheme:'. Defaults to 'http:'.
   * `host` String (optional) - The server host provided as a concatenation of
-the hostname and the port number 'hostname:port'.
+    the hostname and the port number 'hostname:port'.
   * `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) - The redirect mode for this request. Should be
-one of `follow`, `error` or `manual`. Defaults to `follow`. 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.
+  * `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.
 
 `options` properties such as `protocol`, `host`, `hostname`, `port` and `path`
 strictly follow the Node.js model as described in the
@@ -60,7 +71,7 @@ const request = net.request({
 
 Returns:
 
-* `response` IncomingMessage - An object representing the HTTP response message.
+* `response` [IncomingMessage](incoming-message.md) - An object representing the HTTP response message.
 
 #### Event: 'login'
 
@@ -88,6 +99,7 @@ request.on('login', (authInfo, callback) => {
   callback('username', 'password')
 })
 ```
+
 Providing empty credentials will cancel the request and report an authentication
 error on the response object:
 
@@ -129,7 +141,6 @@ Emitted as the last event in the HTTP request-response transaction. The `close`
 event indicates that no more events will be emitted on either the `request` or
 `response` objects.
 
-
 #### Event: 'redirect'
 
 Returns:
@@ -171,6 +182,20 @@ 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
 `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/+/master:services/network/public/cpp/header_util.cc;drc=1562cab3f1eda927938f8f4a5a91991fefde66d3;bpv=1;bpt=1;l=22).
+
+* `Content-Length`
+* `Host`
+* `Trailer` or `Te`
+* `Upgrade`
+* `Cookie2`
+* `Keep-Alive`
+* `Transfer-Encoding`
+
+Additionally, setting the `Connection` header to the value `upgrade` is also disallowed.
+
 #### `request.getHeader(name)`
 
 * `name` String - Specify an extra header name.

docs/api/command-line-switches.md

@@ -36,6 +36,10 @@ for integrated authentication. Without `*` prefix the URL has to match exactly.
 A comma-separated list of servers for which delegation of user credentials is required.
 Without `*` prefix the URL has to match exactly.
 
+### --disable-ntlm-v2
+
+Disables NTLM v2 for posix platforms, no effect elsewhere.
+
 ### --disable-http-cache
 
 Disables the disk cache for HTTP requests.
@@ -60,12 +64,8 @@ Forces the maximum disk space to be used by the disk cache, in bytes.
 ### --enable-api-filtering-logging
 
 Enables caller stack logging for the following APIs (filtering events):
-- `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`
+
+* `desktopCapturer.getSources()` / `desktop-capturer-get-sources`
 
 ### --enable-logging
 
@@ -75,6 +75,12 @@ This switch can not be used in `app.commandLine.appendSwitch` since it is parsed
 earlier than user's app is loaded, but you can set the `ELECTRON_ENABLE_LOGGING`
 environment variable to achieve the same effect.
 
+### --force-fieldtrials=`trials`
+
+Field trials to be forcefully enabled or disabled.
+
+For example: `WebRTC-Audio-Red-For-Opus/Enabled/`
+
 ### --host-rules=`rules`
 
 A comma-separated list of `rules` that control how hostnames are mapped.
@@ -131,7 +137,8 @@ proxy server flags that are passed.
 
 ### --no-sandbox
 
-Disables Chromium sandbox, which is now enabled by default.
+Disables the Chromium [sandbox](https://www.chromium.org/developers/design-documents/sandbox).
+Forces renderer process and Chromium helper processes to run un-sandboxed.
 Should only be used for testing.
 
 ### --proxy-bypass-list=`hosts`
@@ -167,14 +174,6 @@ authentication [per Chromium issue](https://bugs.chromium.org/p/chromium/issues/
 
 Enables remote debugging over HTTP on the specified `port`.
 
-### --ppapi-flash-path=`path`
-
-Sets the `path` of the pepper flash plugin.
-
-### --ppapi-flash-version=`version`
-
-Sets the `version` of the pepper flash plugin.
-
 ### --v=`log_level`
 
 Gives the default maximal active V-logging level; 0 is the default. Normally
@@ -194,6 +193,14 @@ logging level for all code in the source files under a `foo/bar` directory.
 
 This switch only works when `--enable-logging` is also passed.
 
+### --force_high_performance_gpu
+
+Force using discrete GPU when there are multiple GPUs available.
+
+### --force_low_power_gpu
+
+Force using integrated GPU when there are multiple GPUs available.
+
 ## Node.js Flags
 
 Electron supports some of the [CLI flags][node-cli] supported by Node.js.
@@ -223,12 +230,13 @@ See the [Debugging the Main Process][debugging-main-process] guide for more deta
 Aliased to `--debug[=[host:]port`.
 
 ### --inspect-publish-uid=stderr,http
+
 Specify ways of the inspector web socket url exposure.
 
 By default inspector websocket url is available in stderr and under /json/list endpoint on http://host:port/json/list.
 
 [app]: app.md
-[append-switch]: app.md#appcommandlineappendswitchswitch-value
+[append-switch]: command-line.md#commandlineappendswitchswitch-value
 [ready]: app.md#event-ready
 [play-silent-audio]: https://github.com/atom/atom/pull/9485/files
 [debugging-main-process]: ../tutorial/debugging-main-process.md

docs/api/content-tracing.md

@@ -16,7 +16,7 @@ const { app, contentTracing } = require('electron')
 app.whenReady().then(() => {
   (async () => {
     await contentTracing.startRecording({
-      include_categories: ['*']
+      included_categories: ['*']
     })
     console.log('Tracing started')
     await new Promise(resolve => setTimeout(resolve, 5000))
@@ -83,4 +83,4 @@ Returns `Promise<Object>` - Resolves with an object containing the `value` and `
 Get the maximum usage across processes of trace buffer as a percentage of the
 full state.
 
-[trace viewer]: https://github.com/catapult-project/catapult/blob/master/tracing
+[trace viewer]: https://chromium.googlesource.com/catapult/+/HEAD/tracing/README.md

docs/api/context-bridge.md

@@ -33,7 +33,7 @@ page you load in your renderer executes code in this world.
 
 ### Isolated World
 
-When `contextIsolation` is enabled in your `webPreferences`, your `preload` scripts run in an
+When `contextIsolation` is enabled in your `webPreferences` (this is the default behavior since Electron 12.0.0), 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-for-remote-content) docs.
 
@@ -44,19 +44,19 @@ The `contextBridge` module has the following methods:
 ### `contextBridge.exposeInMainWorld(apiKey, api)` _Experimental_
 
 * `apiKey` String - The key to inject the API onto `window` with.  The API will be accessible on `window[apiKey]`.
-* `api` Record<String, any> - Your API object, more information on what this API can be and how it works is available below.
+* `api` any - Your API, more information on what this API can be and how it works is available below.
 
 ## Usage
 
-### API Objects
+### API
 
-The `api` object provided to [`exposeInMainWorld`](#contextbridgeexposeinmainworldapikey-api-experimental) must be an object
+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 object become immutable and updates on either side of the bridge do not result in an update on the other side.
+the API become immutable and updates on either side of the bridge do not result in an update on the other side.
 
-An example of a complex API object is shown below:
+An example of a complex API is shown below:
 
 ```javascript
 const { contextBridge } = require('electron')
@@ -106,7 +106,27 @@ has been included below for completeness:
 | `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')
+  }
+})
+```

docs/api/cookies.md

@@ -45,6 +45,8 @@ The following events are available on instances of `Cookies`:
 
 #### Event: 'changed'
 
+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:

docs/api/crash-reporter.md

@@ -39,6 +39,37 @@ 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
 
 The `crashReporter` module has the following methods:
@@ -46,7 +77,8 @@ The `crashReporter` module has the following methods:
 ### `crashReporter.start(options)`
 
 * `options` Object
-  * `submitURL` String - URL that crash reports will be sent to as POST.
+  * `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
     `{ globalExtra: { _companyName: ... } }`.
@@ -59,7 +91,7 @@ The `crashReporter` module has the following methods:
   * `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
-    and uploaded with `Content-Encoding: gzip`. Default is `false`.
+    and uploaded with `Content-Encoding: gzip`. Default is `true`.
   * `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
@@ -97,7 +129,7 @@ must be at most 39 bytes long, and values must be no longer than 127 bytes.
 Keys with names longer than the maximum will be silently ignored. Key values
 longer than the maximum length will be truncated.
 
-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.
 
 ### `crashReporter.getLastCrashReport()`
 
@@ -106,7 +138,7 @@ last crash report. Only crash reports that have been uploaded will be returned;
 even if a crash report is present on disk it will not be returned until it is
 uploaded. In the case that there are no uploaded reports, `null` is returned.
 
-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.
 
 ### `crashReporter.getUploadedReports()`
 
@@ -115,14 +147,14 @@ Returns [`CrashReport[]`](structures/crash-report.md):
 Returns all uploaded crash reports. Each report contains the date and uploaded
 ID.
 
-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.
 
 ### `crashReporter.getUploadToServer()`
 
 Returns `Boolean` - Whether reports should be submitted to the server. Set through
 the `start` method or `setUploadToServer`.
 
-**Note:** Calling this method from the renderer process is deprecated.
+**Note:** This method is only available in the main process.
 
 ### `crashReporter.setUploadToServer(uploadToServer)`
 
@@ -131,13 +163,7 @@ the `start` method or `setUploadToServer`.
 This would normally be controlled by user preferences. This has no effect if
 called before `start` is called.
 
-**Note:** Calling this method from the renderer process is deprecated.
-
-### `crashReporter.getCrashesDirectory()` _Deprecated_
-
-Returns `String` - The directory where crashes are temporarily stored before being uploaded.
-
-**Note:** This method is deprecated, use `app.getPath('crashDumps')` instead.
+**Note:** This method is only available in the main process.
 
 ### `crashReporter.addExtraParameter(key, value)`
 
@@ -156,15 +182,21 @@ parameters in a renderer process will not result in those parameters being sent
 with crashes that occur in other renderer processes or in the main process.
 
 **Note:** Parameters have limits on the length of the keys and values. Key
-names must be no longer than 39 bytes, and values must be no longer than 127
+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.
 
-Remove a extra parameter from the current set of parameters. Future crashes
+Remove an extra parameter from the current set of parameters. Future crashes
 will not include this parameter.
 
 ### `crashReporter.getParameters()`

docs/api/debugger.md

@@ -9,7 +9,7 @@ runtime that allows interacting with pages and instrumenting them.
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow()
+const win = new BrowserWindow()
 
 try {
   win.webContents.debugger.attach('1.1')
@@ -52,6 +52,8 @@ Returns:
 * `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,
+   will match the value sent from `debugger.sendCommand`.
 
 Emitted whenever the debugging target issues an instrumentation event.
 
@@ -74,11 +76,16 @@ Returns `Boolean` - Whether a debugger is attached to the `webContents`.
 
 Detaches the debugger from the `webContents`.
 
-#### `debugger.sendCommand(method[, commandParams])`
+#### `debugger.sendCommand(method[, commandParams, sessionId])`
 
 * `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
+   debugging session id. The initial value can be obtained by sending
+   [Target.attachToTarget][attachToTarget] message.
+
+[attachToTarget]: https://chromedevtools.github.io/devtools-protocol/tot/Target/#method-attachToTarget
 
 Returns `Promise<any>` - A promise that resolves with the response defined by
 the 'returns' attribute of the command description in the remote debugging protocol

docs/api/desktop-capturer.md

@@ -95,7 +95,7 @@ Returns `Promise<DesktopCapturerSource[]>` - Resolves with an array of [`Desktop
 which can detected by [`systemPreferences.getMediaAccessStatus`].
 
 [`navigator.mediaDevices.getUserMedia`]: https://developer.mozilla.org/en/docs/Web/API/MediaDevices/getUserMedia
-[`systemPreferences.getMediaAccessStatus`]: system-preferences.md#systempreferencesgetmediaaccessstatusmediatype-macos
+[`systemPreferences.getMediaAccessStatus`]: system-preferences.md#systempreferencesgetmediaaccessstatusmediatype-windows-macos
 
 ## Caveats
 

docs/api/dialog.md

@@ -11,14 +11,6 @@ const { dialog } = require('electron')
 console.log(dialog.showOpenDialog({ properties: ['openFile', 'multiSelections'] }))
 ```
 
-The Dialog is opened from Electron's main thread. If you want to use the dialog
-object from a renderer process, remember to access it using the remote:
-
-```javascript
-const { dialog } = require('electron').remote
-console.log(dialog)
-```
-
 ## Methods
 
 The `dialog` module has the following methods:
@@ -162,7 +154,7 @@ dialog.showOpenDialog(mainWindow, {
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` String (optional)
+  * `title` String (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
   * `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
@@ -193,7 +185,7 @@ The `filters` specifies an array of file types that can be displayed, see
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
-  * `title` String (optional)
+  * `title` String (optional) - The dialog title. Cannot be displayed on some _Linux_ desktop environments.
   * `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
@@ -213,9 +205,10 @@ The `filters` specifies an array of file types that can be displayed, see
   * `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.
 
@@ -229,6 +222,7 @@ 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
   `"warning"`. On Windows, `"question"` displays the same icon as `"info"`, unless
   you set an icon using the `"icon"` option. On macOS, both `"warning"` and
@@ -238,12 +232,7 @@ expanding and collapsing the dialog.
   * `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.
-  * `message` String - Content of the message box.
   * `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
@@ -269,12 +258,13 @@ Shows a message box, it will block the process until the message box is closed.
 It returns the index of the clicked button.
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
-If `browserWindow` is not shown dialog will not be attached to it. In such case It will be displayed as independed window.
+If `browserWindow` is not shown dialog will not be attached to it. In such case it will be displayed as an independent window.
 
 ### `dialog.showMessageBox([browserWindow, ]options)`
 
 * `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
   `"warning"`. On Windows, `"question"` displays the same icon as `"info"`, unless
   you set an icon using the `"icon"` option. On macOS, both `"warning"` and
@@ -284,7 +274,6 @@ If `browserWindow` is not shown dialog will not be attached to it. In such case
   * `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.
-  * `message` String - Content of the message box.
   * `detail` String (optional) - Extra information of the message.
   * `checkboxLabel` String (optional) - If provided, the message box will
     include a checkbox with the given label.
@@ -310,11 +299,12 @@ If `browserWindow` is not shown dialog will not be attached to it. In such case
     via `Alt-W` on Windows and Linux.
 
 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, it will block the process until the message box is closed.
+Shows a message box.
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
 

docs/api/download-item.md

@@ -11,7 +11,7 @@ control the download item.
 ```javascript
 // In the main process.
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow()
+const win = new BrowserWindow()
 win.webContents.session.on('will-download', (event, item, webContents) => {
   // Set the save path, making Electron not to prompt a save dialog.
   item.setSavePath('/tmp/save.pdf')
@@ -79,6 +79,7 @@ The `downloadItem` object has the following methods:
 * `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.
 If user doesn't set the save path via the API, Electron will use the original
 routine to determine the save path; this usually prompts a save dialog.
 

docs/api/environment-variables.md

@@ -105,6 +105,7 @@ Don't use the global menu bar on Linux.
 Set the trash implementation on Linux. Default is `gio`.
 
 Options:
+
 * `gvfs-trash`
 * `trash-cli`
 * `kioclient5`
@@ -115,11 +116,28 @@ Options:
 The following environment variables are intended primarily for development and
 debugging purposes.
 
-
 ### `ELECTRON_ENABLE_LOGGING`
 
 Prints Chrome's internal logging to the console.
 
+### `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 actions 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)
+```
+
 ### `ELECTRON_LOG_ASAR_READS`
 
 When Electron reads from an ASAR file, log the read offset and file path to

docs/api/extensions.md

@@ -15,7 +15,7 @@ extension capabilities.
 
 Electron only supports loading unpacked extensions (i.e., `.crx` files do not
 work). Extensions are installed per-`session`. To load an extension, call
-[`ses.loadExtension`](session.md#sesloadextensionpath):
+[`ses.loadExtension`](session.md#sesloadextensionpath-options):
 
 ```js
 const { session } = require('electron')
@@ -74,6 +74,7 @@ The following methods of `chrome.runtime` are supported:
 
 - `chrome.runtime.getBackgroundPage`
 - `chrome.runtime.getManifest`
+- `chrome.runtime.getPlatformInfo`
 - `chrome.runtime.getURL`
 - `chrome.runtime.connect`
 - `chrome.runtime.sendMessage`
@@ -102,3 +103,21 @@ The following methods of `chrome.tabs` are supported:
 > **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
 > supported and will raise an error.
+
+### `chrome.management`
+
+The following methods of `chrome.management` are supported:
+
+- `chrome.management.getAll`
+- `chrome.management.get`
+- `chrome.management.getSelf`
+- `chrome.management.getPermissionWarningsById`
+- `chrome.management.getPermissionWarningsByManifest`
+- `chrome.management.onEnabled`
+- `chrome.management.onDisabled`
+
+### `chrome.webRequest`
+
+All features of this API are supported.
+
+> **NOTE:** Electron's [`webRequest`](web-request.md) module takes precedence over `chrome.webRequest` if there are conflicting handlers.

docs/api/frameless-window.md

@@ -12,10 +12,9 @@ options on the [`BrowserWindow`](browser-window.md) class.
 To create a frameless window, you need to set `frame` to `false` in
 [BrowserWindow](browser-window.md)'s `options`:
 
-
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow({ width: 800, height: 600, frame: false })
+const win = new BrowserWindow({ width: 800, height: 600, frame: false })
 win.show()
 ```
 
@@ -33,7 +32,7 @@ Results in a hidden title bar and a full size content window, yet the title bar
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow({ titleBarStyle: 'hidden' })
+const win = new BrowserWindow({ titleBarStyle: 'hidden' })
 win.show()
 ```
 
@@ -43,7 +42,7 @@ Results in a hidden title bar with an alternative look where the traffic light b
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow({ titleBarStyle: 'hiddenInset' })
+const win = new BrowserWindow({ titleBarStyle: 'hiddenInset' })
 win.show()
 ```
 
@@ -58,7 +57,7 @@ This option is only applicable for frameless windows.
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow({ titleBarStyle: 'customButtonsOnHover', frame: false })
+const win = new BrowserWindow({ titleBarStyle: 'customButtonsOnHover', frame: false })
 win.show()
 ```
 
@@ -69,7 +68,7 @@ window transparent:
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow({ transparent: true, frame: false })
+const win = new BrowserWindow({ transparent: true, frame: false })
 win.show()
 ```
 
@@ -83,12 +82,15 @@ win.show()
 * 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
+* The window will not be transparent when DevTools is opened.
+* On Windows operating systems,
+  * transparent windows will not work when DWM is
   disabled.
+  * transparent windows can not be maximized using the Windows system menu or by double clicking the title bar. The reasoning behind this can be seen on [this pull request](https://github.com/electron/electron/pull/28207).
 * On Linux, users have to put `--enable-transparent-visuals --disable-gpu` in
   the command line to disable GPU and allow ARGB to make transparent window,
   this is caused by an upstream bug that [alpha channel doesn't work on some
-  NVidia drivers](https://code.google.com/p/chromium/issues/detail?id=369209) on
+  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.
 
@@ -100,7 +102,7 @@ API:
 
 ```javascript
 const { BrowserWindow } = require('electron')
-let win = new BrowserWindow()
+const win = new BrowserWindow()
 win.setIgnoreMouseEvents(true)
 ```
 
@@ -112,13 +114,19 @@ optional parameter can be used to forward mouse move messages to the web page,
 allowing events such as `mouseleave` to be emitted:
 
 ```javascript
-let win = require('electron').remote.getCurrentWindow()
-let el = document.getElementById('clickThroughElement')
+const { ipcRenderer } = require('electron')
+const el = document.getElementById('clickThroughElement')
 el.addEventListener('mouseenter', () => {
-  win.setIgnoreMouseEvents(true, { forward: true })
+  ipcRenderer.send('set-ignore-mouse-events', true, { forward: true })
 })
 el.addEventListener('mouseleave', () => {
-  win.setIgnoreMouseEvents(false)
+  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)
 })
 ```
 

docs/api/global-shortcut.md

@@ -9,7 +9,7 @@ with the operating system so that you can customize the operations for various
 shortcuts.
 
 **Note:** The shortcut is global; it will work even if the app does
-not have the keyboard focus. You should not use this module until the `ready`
+not have the keyboard focus. This module cannot be used before the `ready`
 event of the app module is emitted.
 
 ```javascript

docs/api/incoming-message.md

@@ -20,7 +20,7 @@ applicative code.
 
 #### Event: 'end'
 
-Indicates that response body has ended.
+Indicates that response body has ended. Must be placed before 'data' event.
 
 #### Event: 'aborted'
 

docs/api/ipc-main.md

@@ -91,7 +91,7 @@ Removes listeners of the specified `channel`.
 ### `ipcMain.handle(channel, listener)`
 
 * `channel` String
-* `listener` Function<Promise<void> | any>
+* `listener` Function<Promise\<void> | any>
   * `event` IpcMainInvokeEvent
   * `...args` any[]
 
@@ -120,10 +120,15 @@ The `event` that is passed as the first argument to the handler is the same as
 that passed to a regular event listener. It includes information about which
 WebContents is the source of the invoke request.
 
+Errors thrown through `handle` in the main process are not transparent as they
+are serialized and only the `message` property from the original error is
+provided to the renderer process. Please refer to
+[#24427](https://github.com/electron/electron/issues/24427) for details.
+
 ### `ipcMain.handleOnce(channel, listener)`
 
 * `channel` String
-* `listener` Function<Promise<void> | any>
+* `listener` Function<Promise\<void> | any>
   * `event` IpcMainInvokeEvent
   * `...args` any[]
 
@@ -148,4 +153,4 @@ found in the [`ipc-main-invoke-event`](structures/ipc-main-invoke-event.md)
 structure docs.
 
 [event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
-[web-contents-send]: web-contents.md#contentssendchannel-arg1-arg2-
+[web-contents-send]: web-contents.md#contentssendchannel-args

docs/api/ipc-renderer.md

@@ -61,9 +61,13 @@ Algorithm][SCA], just like [`window.postMessage`][], so prototype chains will no
 included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
 throw an exception.
 
-> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
-> special Electron objects is deprecated, and will begin throwing an exception
-> starting with Electron 9.
+> **NOTE:** Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects will throw an exception.
+>
+> Since the main process does not have support for DOM objects such as
+> `ImageBitmap`, `File`, `DOMMatrix` and so on, such objects cannot be sent over
+> Electron's IPC to the main process, as the main process would have no way to decode
+> them. Attempting to send such objects over IPC will result in an error.
 
 The main process handles it by listening for `channel` with the
 [`ipcMain`](ipc-main.md) module.
@@ -85,14 +89,19 @@ Algorithm][SCA], just like [`window.postMessage`][], so prototype chains will no
 included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
 throw an exception.
 
-> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
-> special Electron objects is deprecated, and will begin throwing an exception
-> starting with Electron 9.
+> **NOTE:** Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects will throw an exception.
+>
+> Since the main process does not have support for DOM objects such as
+> `ImageBitmap`, `File`, `DOMMatrix` and so on, such objects cannot be sent over
+> Electron's IPC to the main process, as the main process would have no way to decode
+> them. Attempting to send such objects over IPC will result in an error.
 
 The main process should listen for `channel` with
 [`ipcMain.handle()`](ipc-main.md#ipcmainhandlechannel-listener).
 
 For example:
+
 ```javascript
 // Renderer process
 ipcRenderer.invoke('some-name', someArgument).then((result) => {
@@ -108,7 +117,7 @@ ipcMain.handle('some-name', async (event, someArgument) => {
 
 If you need to transfer a [`MessagePort`][] to the main process, use [`ipcRenderer.postMessage`](#ipcrendererpostmessagechannel-message-transfer).
 
-If you do not need a respons to the message, consider using [`ipcRenderer.send`](#ipcrenderersendchannel-args).
+If you do not need a response to the message, consider using [`ipcRenderer.send`](#ipcrenderersendchannel-args).
 
 ### `ipcRenderer.sendSync(channel, ...args)`
 
@@ -123,9 +132,13 @@ Algorithm][SCA], just like [`window.postMessage`][], so prototype chains will no
 included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
 throw an exception.
 
-> **NOTE**: Sending non-standard JavaScript types such as DOM objects or
-> special Electron objects is deprecated, and will begin throwing an exception
-> starting with Electron 9.
+> **NOTE:** Sending non-standard JavaScript types such as DOM objects or
+> special Electron objects will throw an exception.
+>
+> Since the main process does not have support for DOM objects such as
+> `ImageBitmap`, `File`, `DOMMatrix` and so on, such objects cannot be sent over
+> Electron's IPC to the main process, as the main process would have no way to decode
+> them. Attempting to send such objects over IPC will result in an error.
 
 The main process handles it by listening for `channel` with [`ipcMain`](ipc-main.md) module,
 and replies by setting `event.returnValue`.
@@ -149,6 +162,7 @@ The transferred `MessagePort` objects will be available in the main process as
 property of the emitted event.
 
 For example:
+
 ```js
 // Renderer process
 const { port1, port2 } = new MessageChannel()

docs/api/locales.md

@@ -1,142 +0,0 @@
-# Locales
-
-> Locale values returned by `app.getLocale()`.
-
-Electron uses Chromium's `l10n_util` library to fetch the locale. Possible
-values are listed below:
-
-| Language Code | Language Name |
-|---------------|---------------|
-| af | Afrikaans |
-| am | Amharic |
-| ar | Arabic |
-| az | Azerbaijani |
-| be | Belarusian |
-| bg | Bulgarian |
-| bh | Bihari |
-| bn | Bengali |
-| br | Breton |
-| bs | Bosnian |
-| ca | Catalan |
-| co | Corsican |
-| cs | Czech |
-| cy | Welsh |
-| da | Danish |
-| de | German |
-| de-AT | German (Austria) |
-| de-CH | German (Switzerland) |
-| de-DE | German (Germany) |
-| el | Greek |
-| en | English |
-| en-AU | English (Australia) |
-| en-CA | English (Canada) |
-| en-GB | English (UK) |
-| en-NZ | English (New Zealand) |
-| en-US | English (US) |
-| en-ZA | English (South Africa) |
-| eo | Esperanto |
-| es | Spanish |
-| es-419 | Spanish (Latin America) |
-| et | Estonian |
-| eu | Basque |
-| fa | Persian |
-| fi | Finnish |
-| fil | Filipino |
-| fo | Faroese |
-| fr | French |
-| fr-CA | French (Canada) |
-| fr-CH | French (Switzerland) |
-| fr-FR | French (France) |
-| fy | Frisian |
-| ga | Irish |
-| gd | Scots Gaelic |
-| gl | Galician |
-| gn | Guarani |
-| gu | Gujarati |
-| ha | Hausa |
-| haw | Hawaiian |
-| he | Hebrew |
-| hi | Hindi |
-| hr | Croatian |
-| hu | Hungarian |
-| hy | Armenian |
-| ia | Interlingua |
-| id | Indonesian |
-| is | Icelandic |
-| it | Italian |
-| it-CH | Italian (Switzerland) |
-| it-IT | Italian (Italy) |
-| ja | Japanese |
-| jw | Javanese |
-| ka | Georgian |
-| kk | Kazakh |
-| km | Cambodian |
-| kn | Kannada |
-| ko | Korean |
-| ku | Kurdish |
-| ky | Kyrgyz |
-| la | Latin |
-| ln | Lingala |
-| lo | Laothian |
-| lt | Lithuanian |
-| lv | Latvian |
-| mk | Macedonian |
-| ml | Malayalam |
-| mn | Mongolian |
-| mo | Moldavian |
-| mr | Marathi |
-| ms | Malay |
-| mt | Maltese |
-| nb | Norwegian (Bokmal) |
-| ne | Nepali |
-| nl | Dutch |
-| nn | Norwegian (Nynorsk) |
-| no | Norwegian |
-| oc | Occitan |
-| om | Oromo |
-| or | Oriya |
-| pa | Punjabi |
-| pl | Polish |
-| ps | Pashto |
-| pt | Portuguese |
-| pt-BR | Portuguese (Brazil) |
-| pt-PT | Portuguese (Portugal) |
-| qu | Quechua |
-| rm | Romansh |
-| ro | Romanian |
-| ru | Russian |
-| sd | Sindhi |
-| sh | Serbo-Croatian |
-| si | Sinhalese |
-| sk | Slovak |
-| sl | Slovenian |
-| sn | Shona |
-| so | Somali |
-| sq | Albanian |
-| sr | Serbian |
-| st | Sesotho |
-| su | Sundanese |
-| sv | Swedish |
-| sw | Swahili |
-| ta | Tamil |
-| te | Telugu |
-| tg | Tajik |
-| th | Thai |
-| ti | Tigrinya |
-| tk | Turkmen |
-| to | Tonga |
-| tr | Turkish |
-| tt | Tatar |
-| tw | Twi |
-| ug | Uighur |
-| uk | Ukrainian |
-| ur | Urdu |
-| uz | Uzbek |
-| vi | Vietnamese |
-| xh | Xhosa |
-| yi | Yiddish |
-| yo | Yoruba |
-| zh | Chinese |
-| zh-CN | Chinese (Simplified) |
-| zh-TW | Chinese (Traditional) |
-| zu | Zulu |

docs/api/menu-item.md

@@ -12,9 +12,9 @@ See [`Menu`](menu.md) for examples.
   * `click` Function (optional) - Will be called with
     `click(menuItem, browserWindow, event)` when the menu item is clicked.
     * `menuItem` MenuItem
-    * `browserWindow` [BrowserWindow](browser-window.md)
+    * `browserWindow` [BrowserWindow](browser-window.md) | undefined - This will not be defined if no window is open.
     * `event` [KeyboardEvent](structures/keyboard-event.md)
-  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu` - Define the action of the menu item, when specified the
+  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideOthers`, `unhide`, `quit`, `startSpeaking`, `stopSpeaking`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu`, `shareMenu`, `recentDocuments`, `toggleTabBar`, `selectNextTab`, `selectPreviousTab`, `mergeAllWindows`, `clearRecentDocuments`, `moveTabToNewWindow` or `windowMenu` - Define the action of the menu item, when specified the
     `click` property will be ignored. See [roles](#roles).
   * `type` String (optional) - Can be `normal`, `separator`, `submenu`, `checkbox` or
     `radio`.
@@ -31,6 +31,7 @@ See [`Menu`](menu.md) for examples.
     menu items.
   * `registerAccelerator` Boolean (optional) _Linux_ _Windows_ - If false, the accelerator won't be registered
     with the system, but it will still be displayed. Defaults to true.
+  * `sharingItem` SharingItem (optional) _macOS_ - The item to share when the `role` is `shareMenu`.
   * `submenu` (MenuItemConstructorOptions[] | [Menu](menu.md)) (optional) - Should be specified
     for `submenu` type menu items. If `submenu` is specified, the `type: 'submenu'` can be omitted.
     If the value is not a [`Menu`](menu.md) then it will be automatically converted to one using
@@ -69,6 +70,7 @@ a `type`.
 The `role` property can have following values:
 
 * `undo`
+* `about` - Trigger a native about panel (custom message box on Window, which does not provide its own).
 * `redo`
 * `cut`
 * `copy`
@@ -86,6 +88,7 @@ The `role` property can have following values:
 * `resetZoom` - Reset the focused page's zoom level to the original size.
 * `zoomIn` - Zoom in the focused page by 10%.
 * `zoomOut` - Zoom out the focused page by 10%.
+* `toggleSpellChecker` - Enable/disable builtin spell checker.
 * `fileMenu` - Whole default "File" menu (Close / Quit)
 * `editMenu` - Whole default "Edit" menu (Undo, Copy, etc.).
 * `viewMenu` - Whole default "View" menu (Reload, Toggle Developer Tools, etc.)
@@ -94,7 +97,6 @@ The `role` property can have following values:
 The following additional roles are available on _macOS_:
 
 * `appMenu` - Whole default "App" menu (About, Services, etc.)
-* `about` - Map to the `orderFrontStandardAboutPanel` action.
 * `hide` - Map to the `hide` action.
 * `hideOthers` - Map to the `hideOtherApplications` action.
 * `unhide` - Map to the `unhideAllApplications` action.
@@ -112,6 +114,7 @@ The following additional roles are available on _macOS_:
 * `services` - The submenu is a ["Services"](https://developer.apple.com/documentation/appkit/nsapplication/1428608-servicesmenu?language=objc) menu. This is only intended for use in the Application Menu and is *not* the same as the "Services" submenu used in context menus in macOS apps, which is not implemented in Electron.
 * `recentDocuments` - The submenu is an "Open Recent" menu.
 * `clearRecentDocuments` - Map to the `clearRecentDocuments` action.
+* `shareMenu` - The submenu is [share menu][ShareMenu]. The `sharingItem` property must also be set to indicate the item to share.
 
 When specifying a `role` on macOS, `label` and `accelerator` are the only
 options that will affect the menu item. All other options will be ignored.
@@ -136,6 +139,7 @@ A `String` indicating the item's visible label.
 
 A `Function` that is fired when the MenuItem receives a click event.
 It can be called with `menuItem.click(event, focusedWindow, focusedWebContents)`.
+
 * `event` [KeyboardEvent](structures/keyboard-event.md)
 * `focusedWindow` [BrowserWindow](browser-window.md)
 * `focusedWebContents` [WebContents](web-contents.md)
@@ -200,6 +204,12 @@ system or just displayed.
 
 This property can be dynamically changed.
 
+#### `menuItem.sharingItem` _macOS_
+
+A `SharingItem` indicating the item to share when the `role` is `shareMenu`.
+
+This property can be dynamically changed.
+
 #### `menuItem.commandId`
 
 A `Number` indicating an item's sequential unique id.
@@ -207,3 +217,5 @@ A `Number` indicating an item's sequential unique id.
 #### `menuItem.menu`
 
 A `Menu` that the item is a part of.
+
+[ShareMenu]: https://developer.apple.com/design/human-interface-guidelines/macos/extensions/share-extensions/

docs/api/menu.md

@@ -1,3 +1,5 @@
+# Menu
+
 ## Class: Menu
 
 > Create native application menus and context menus.
@@ -22,8 +24,10 @@ Sets `menu` as the application menu on macOS. On Windows and Linux, the
 Also on Windows and Linux, you can use a `&` in the top-level item name to
 indicate which letter should get a generated accelerator. For example, using
 `&File` for the file menu would result in a generated `Alt-F` accelerator that
-opens the associated menu. The indicated character in the button label gets an
-underline. The `&` character is not displayed on the button label.
+opens the associated menu. The indicated character in the button label then gets an
+underline, and the `&` character is not displayed on the button label.
+
+In order to escape the `&` character in an item name, add a proceeding `&`. For example, `&&File` would result in `&File` displayed on the button label.
 
 Passing `null` will suppress the default menu. On Windows and Linux,
 this has the additional effect of removing the menu bar from the window.
@@ -96,7 +100,7 @@ Appends the `menuItem` to the menu.
 
 * `id` String
 
-Returns `MenuItem` the item with the specified `id`
+Returns `MenuItem | null` the item with the specified `id`
 
 #### `menu.insert(pos, menuItem)`
 
@@ -141,13 +145,7 @@ can have a submenu.
 
 ## Examples
 
-The `Menu` class is only available in the main process, but you can also use it
-in the render process via the [`remote`](remote.md) module.
-
-### Main process
-
-An example of creating the application menu in the main process with the
-simple template API:
+An example of creating the application menu with the simple template API:
 
 ```javascript
 const { app, Menu } = require('electron')
@@ -195,8 +193,8 @@ const template = [
         {
           label: 'Speech',
           submenu: [
-            { role: 'startspeaking' },
-            { role: 'stopspeaking' }
+            { role: 'startSpeaking' },
+            { role: 'stopSpeaking' }
           ]
         }
       ] : [
@@ -211,12 +209,12 @@ const template = [
     label: 'View',
     submenu: [
       { role: 'reload' },
-      { role: 'forcereload' },
-      { role: 'toggledevtools' },
+      { role: 'forceReload' },
+      { role: 'toggleDevTools' },
       { type: 'separator' },
-      { role: 'resetzoom' },
-      { role: 'zoomin' },
-      { role: 'zoomout' },
+      { role: 'resetZoom' },
+      { role: 'zoomIn' },
+      { role: 'zoomOut' },
       { type: 'separator' },
       { role: 'togglefullscreen' }
     ]
@@ -257,26 +255,36 @@ Menu.setApplicationMenu(menu)
 
 ### Render process
 
-Below is an example of creating a menu dynamically in a web page
-(render process) by using the [`remote`](remote.md) module, and showing it when
-the user right clicks the page:
+To create menus initiated by the renderer process, send the required
+information to the main process using IPC and have the main process display the
+menu on behalf of the renderer.
 
-```html
-<!-- index.html -->
-<script>
-const { remote } = require('electron')
-const { Menu, MenuItem } = remote
-
-const menu = new Menu()
-menu.append(new MenuItem({ label: 'MenuItem1', click() { console.log('item 1 clicked') } }))
-menu.append(new MenuItem({ type: 'separator' }))
-menu.append(new MenuItem({ label: 'MenuItem2', type: 'checkbox', checked: true }))
+Below is an example of showing a menu when the user right clicks the page:
 
+```js
+// renderer
 window.addEventListener('contextmenu', (e) => {
   e.preventDefault()
-  menu.popup({ window: remote.getCurrentWindow() })
-}, false)
-</script>
+  ipcRenderer.send('show-context-menu')
+})
+
+ipcRenderer.on('context-menu-command', (e, command) => {
+  // ...
+})
+
+// main
+ipcMain.on('show-context-menu', (event) => {
+  const template = [
+    {
+      label: 'Menu Item 1',
+      click: () => { event.sender.send('context-menu-command', 'menu-item-1') }
+    },
+    { type: 'separator' },
+    { label: 'Menu Item 2', type: 'checkbox', checked: true }
+  ]
+  const menu = Menu.buildFromTemplate(template)
+  menu.popup(BrowserWindow.fromWebContents(event.sender))
+})
 ```
 
 ## Notes on macOS Application Menu

docs/api/message-channel-main.md

@@ -9,13 +9,27 @@ channel messaging.
 
 ## Class: MessageChannelMain
 
+> Channel interface for channel messaging in the main process.
+
 Process: [Main](../glossary.md#main-process)
 
 Example:
+
 ```js
+// Main process
+const { MessageChannelMain } = require('electron')
 const { port1, port2 } = new MessageChannelMain()
 w.webContents.postMessage('port', null, [port2])
 port1.postMessage({ some: 'message' })
+
+// Renderer process
+const { ipcRenderer } = require('electron')
+ipcRenderer.on('port', (e) => {
+  // e.ports is a list of ports sent along with this message
+  e.ports[0].on('message', (messageEvent) => {
+    console.log(messageEvent.data)
+  })
+})
 ```
 
 ### Instance Properties

docs/api/message-port-main.md

@@ -14,6 +14,8 @@ channel messaging.
 
 ## Class: MessagePortMain
 
+> Port interface for channel messaging in the main process.
+
 Process: [Main](../glossary.md#main-process)
 
 ### Instance Methods