Bump v13.2.3

* docs: explain the null webContents case in permission checks

* Update docs/api/session.md

Co-authored-by: Erick Zhao <erick@hotmail.ca>

Co-authored-by: Samuel Attard <samuel.r.attard@gmail.com>
Co-authored-by: Samuel Attard <sam@electronjs.org>
Co-authored-by: Erick Zhao <erick@hotmail.ca>

.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

@@ -8,45 +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",
-    "globalThis": "readonly",
-    "BUILDFLAG": "readonly",
-    "ENABLE_DESKTOP_CAPTURER": "readonly",
-    "ENABLE_REMOTE_MODULE": "readonly",
-    "ENABLE_VIEWS_API": "readonly",
-    "BigInt": "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 +10,12 @@ DEPS                                    @electron/wg-upgrades
 # Releases WG
 /npm/                                   @electron/wg-releases
 /script/release                         @electron/wg-releases
+
+# Security WG
+/lib/browser/rpc-server.ts              @electron/wg-security
+
+# Remote Change Disliker
+/lib/browser/remote/                    @nornagon
+/lib/renderer/remote/                   @nornagon
+/lib/renderer/api/remote.ts             @nornagon
+/docs/api/remote.md                     @nornagon

.github/ISSUE_TEMPLATE/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/feature_request.yml

@@ -0,0 +1,39 @@
+name: Feature Request
+about: Suggest an idea for Electron
+title: "[Feature Request]: "
+labels: "enhancement ✨"
+body:
+- type: textarea
+  attributes:
+    label: Preflight Checklist
+    description: Please ensure you've completed the following steps by replacing [ ] with [x]
+    value: |
+      * [ ] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
+      * [ ] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
+      * [ ] I have searched the issue tracker for a feature request that matches the one I want to file, without success.
+  validations:
+    required: true
+- type: textarea
+  attributes:
+    label: Problem Description
+    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/PULL_REQUEST_TEMPLATE.md

@@ -13,9 +13,7 @@ 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).
-- [ ] This is **NOT A BREAKING CHANGE**. Breaking changes may not be merged to master until 11-x-y is branched.
 
 #### 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

@@ -55,7 +55,7 @@ electron.d.ts
 spec/.hash
 
 # Eslint Cache
-.eslintcache
+.eslintcache*
 
 # Generated native addon files
 /spec-main/fixtures/native-addon/echo/build/
@@ -65,4 +65,9 @@ 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

.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")
@@ -184,7 +187,6 @@ 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
 
@@ -266,21 +268,6 @@ 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"
 
@@ -303,6 +290,19 @@ 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" ]
@@ -313,9 +313,9 @@ source_set("electron_lib") {
   ]
 
   deps = [
+    ":electron_fuses",
     ":electron_js2c",
     ":electron_version_header",
-    ":manifests",
     ":resources",
     "buildflags",
     "chromium_src:chrome",
@@ -325,7 +325,6 @@ source_set("electron_lib") {
     "//base/allocator:buildflags",
     "//chrome/app:command_ids",
     "//chrome/app/resources:platform_locale_settings",
-    "//chrome/services/printing/public/mojom",
     "//components/certificate_transparency",
     "//components/language/core/browser",
     "//components/net_log",
@@ -333,6 +332,7 @@ source_set("electron_lib") {
     "//components/network_hints/common:mojo_bindings",
     "//components/network_hints/renderer",
     "//components/network_session_configurator/common",
+    "//components/os_crypt",
     "//components/pref_registry",
     "//components/prefs",
     "//components/upload_list",
@@ -341,7 +341,6 @@ source_set("electron_lib") {
     "//components/viz/service",
     "//content/public/browser",
     "//content/public/child",
-    "//content/public/common:service_names",
     "//content/public/gpu",
     "//content/public/renderer",
     "//content/public/utility",
@@ -372,6 +371,7 @@ 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",
@@ -405,44 +405,29 @@ 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" ]
+    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" ]
@@ -462,6 +447,7 @@ source_set("electron_lib") {
   if (is_mac) {
     deps += [
       "//components/remote_cocoa/app_shim",
+      "//components/remote_cocoa/browser",
       "//content/common:mac_helpers",
       "//ui/accelerated_widget_mac",
     ]
@@ -513,6 +499,7 @@ source_set("electron_lib") {
     }
   }
   if (is_linux) {
+    libs = [ "xshmfence" ]
     deps += [
       ":libnotify_loader",
       "//build/config/linux/gtk",
@@ -525,13 +512,13 @@ source_set("electron_lib") {
       "//ui/wm",
     ]
     if (use_x11) {
+      sources += filenames.lib_sources_linux_x11
       deps += [
         "//ui/gfx/x",
         "//ui/gtk/x",
       ]
     }
     configs += [ ":gio_unix" ]
-    configs += [ "//build/config/linux:x11" ]
     defines += [
       # Disable warnings for g_settings_list_schemas.
       "GLIB_DISABLE_DEPRECATION_WARNINGS",
@@ -587,7 +574,6 @@ 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",
@@ -596,8 +582,13 @@ 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",
@@ -632,7 +623,13 @@ source_set("electron_lib") {
       "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) {
@@ -642,9 +639,11 @@ 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",
@@ -661,6 +660,7 @@ source_set("electron_lib") {
   }
   if (enable_pdf_viewer) {
     deps += [
+      "//chrome/browser/resources/pdf:resources",
       "//components/pdf/browser",
       "//components/pdf/renderer",
       "//pdf:pdf_ppapi",
@@ -670,6 +670,20 @@ source_set("electron_lib") {
       "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") {
@@ -695,10 +709,10 @@ if (is_mac) {
   action("fake_v8_context_snapshot_generator") {
     script = "build/fake_v8_context_snapshot_generator.py"
     args = [
-      rebase_path("$root_out_dir/v8_context_snapshot.bin"),
-      rebase_path("$root_out_dir/fake/v8_context_snapshot.bin"),
+      rebase_path("$root_out_dir/$v8_context_snapshot_filename"),
+      rebase_path("$root_out_dir/fake/$v8_context_snapshot_filename"),
     ]
-    outputs = [ "$root_out_dir/fake/v8_context_snapshot.bin" ]
+    outputs = [ "$root_out_dir/fake/$v8_context_snapshot_filename" ]
   }
 
   bundle_data("electron_framework_resources") {
@@ -712,10 +726,10 @@ if (is_mac) {
       public_deps += [ "//v8" ]
       if (use_v8_context_snapshot) {
         if (use_prebuilt_v8_context_snapshot) {
-          sources += [ "$root_out_dir/fake/v8_context_snapshot.bin" ]
+          sources += [ "$root_out_dir/fake/$v8_context_snapshot_filename" ]
           public_deps += [ ":fake_v8_context_snapshot_generator" ]
         } else {
-          sources += [ "$root_out_dir/v8_context_snapshot.bin" ]
+          sources += [ "$root_out_dir/$v8_context_snapshot_filename" ]
           public_deps += [ "//tools/v8_context_snapshot" ]
         }
       } else {
@@ -994,6 +1008,9 @@ 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" ]
@@ -1138,22 +1155,38 @@ 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 (target_cpu == "arm64") {
+        configs -= [ "//build/config/win:cfi_linker" ]
+        ldflags += [ "/guard:cf,nolongjmp" ]
+      }
+
+      if (current_cpu == "x86") {
+        # Set the initial stack size to 0.5MiB, instead of the 1.5MiB needed by
+        # Chrome's main thread. This saves significant memory on threads (like
+        # 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",
@@ -1267,13 +1300,18 @@ 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",
            ]
   }
 }
@@ -1364,6 +1402,43 @@ 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

@@ -22,14 +22,14 @@ Issues are created [here](https://github.com/electron/electron/issues/new).
 
 ### Issue Closure
 
-Bug reports will be closed if the issue has been inactive and the latest affected version no longer receives support. At the moment, Electron maintains its three latest major versions, with a new major version being released every 12 weeks. (For more information on Electron's release cadence, see [this blog post](https://electronjs.org/blog/12-week-cadence).)
+Bug reports will be closed if the issue has been inactive and the latest affected version no longer receives support. At the moment, Electron maintains its three latest major versions, with a new major version being released every 8 weeks. (For more information on Electron's release cadence, see [this blog post](https://electronjs.org/blog/8-week-cadence).)
 
 _If an issue has been closed and you still feel it's relevant, feel free to ping a maintainer or add a comment!_
 
 ### Languages
 
 We accept issues in *any* language.
-When an issue is posted in a language besides English, it is acceptable and encouraged to post an English-translated copy as a reply. 
+When an issue is posted in a language besides English, it is acceptable and encouraged to post an English-translated copy as a reply.
 Anyone may post the translated reply.
 In most cases, a quick pass through translation software is sufficient.
 Having the original text _as well as_ the translation can help mitigate translation errors.
@@ -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

@@ -10,27 +10,24 @@ gclient_gn_args = [
   'checkout_openxr',
   'checkout_google_benchmark',
   'mac_xcode_version',
+  'generate_location_tags',
 ]
 
 vars = {
   'chromium_version':
-    'b04584161e07d4ac110045b7647fa8a81f5f0709',
+    '91.0.4472.164',
   'node_version':
-    'v12.18.3',
+    'v14.16.0',
   'nan_version':
-    '2c4ee8a32a299eada3cd6e468bbd0a473bfea96d',
+    'v2.14.2',
   'squirrel.mac_version':
-    '44468f858ce0d25c27bd5e674abfa104e0119738',
+    '0e5d146ba13101a1302d59ea6e6e0b3cace4ae38',
 
-  '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',
 
@@ -40,8 +37,8 @@ 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,
@@ -52,18 +49,15 @@ vars = {
   # 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',
 
+  'generate_location_tags': False,
+
   # To allow running hooks without parsing the DEPS tree
   'process_deps': True,
 
-  # It is always needed for normal Electron builds,
-  # but might be impossible for custom in-house builds.
-  'download_external_binaries': True,
-
   'checkout_nacl':
     False,
   'checkout_libaom':
@@ -80,6 +74,8 @@ vars = {
     False,
   'checkout_google_benchmark':
     False,
+  'checkout_clang_tidy':
+    True,
 }
 
 deps = {
@@ -99,14 +95,6 @@ deps = {
     '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/electron/vendor/requests': {
-    'url': Var('requests_git') + '/requests.git' + '@' +  Var('requests_version'),
-    'condition': 'checkout_requests and process_deps',
-  },
   'src/third_party/squirrel.mac': {
     'url': Var("squirrel_git") + '/Squirrel.Mac.git@' + Var("squirrel.mac_version"),
     'condition': 'process_deps',
@@ -121,6 +109,23 @@ 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',
@@ -133,12 +138,15 @@ hooks = [
     ],
   },
   {
-    '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',
     ],
   },
   {
@@ -147,27 +155,7 @@ hooks = [
     'action': [
       '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': [
-      'python3',
-      '-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': [
-      'python3',
-      '-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"]);',
     ],
   },
 ]

ELECTRON_VERSION

@@ -1 +1 @@
-11.0.0-nightly.20200826
+13.2.3

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 +1,11 @@
 [![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 +28,12 @@ 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

@@ -13,4 +13,5 @@ Report security bugs in third-party modules to the person or team maintaining th
 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

@@ -36,6 +36,7 @@ environment:
   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
         }
       }
@@ -64,11 +67,8 @@ build_script:
   - 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] "
       }
   - >-
@@ -97,8 +97,11 @@ build_script:
               $env:SAVE_GCLIENT_SRC="true"
             }
           } else {
-            # update external binaries
-            python src/electron/script/update-external-binaries.py
+            # update angle
+            cd src\third_party\angle
+            git remote set-url origin  https://chromium.googlesource.com/angle/angle.git
+            git fetch
+            cd ..\..\..
           }
         } else {    
           # file does not exist, gclient sync, then zip
@@ -114,38 +117,38 @@ build_script:
       if ($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 )
@@ -161,7 +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
@@ -205,7 +208,8 @@ test_script:
         echo "Skipping tests for $env:GN_CONFIG build"
       }
   - cd electron
-  - if "%RUN_TESTS%"=="true" ( echo Running test suite & node script/yarn test -- --trace-uncaught --enable-logging)
+  # CalculateNativeWinOcclusion is disabled due to https://bugs.chromium.org/p/chromium/issues/detail?id=1139022
+  - if "%RUN_TESTS%"=="true" ( echo Running test suite & node script/yarn test -- --trace-uncaught --enable-logging --disable-features=CalculateNativeWinOcclusion )
   - cd ..
   - if "%RUN_TESTS%"=="true" ( echo Verifying non proprietary ffmpeg & python electron\script\verify-ffmpeg.py --build-dir out\Default --source-root %cd% --ffmpeg-path out\ffmpeg )
   - echo "About to verify mksnapshot"
@@ -219,10 +223,10 @@ deploy_script:
       if (Test-Path Env:\ELECTRON_RELEASE) {
         if (Test-Path Env:\UPLOAD_TO_S3) {
           Write-Output "Uploading Electron release distribution to s3"
-          & python script\release\uploaders\upload.py --upload_to_s3
+          & python script\release\uploaders\upload.py --verbose --upload_to_s3
         } else {
           Write-Output "Uploading Electron release distribution to github releases"
-          & python script\release\uploaders\upload.py
+          & python script\release\uploaders\upload.py --verbose
         }
       } elseif (Test-Path Env:\TEST_WOA) {
         node script/release/ci-release-build.js --job=electron-woa-testing --ci=VSTS --armTest --appveyorJobId=$env:APPVEYOR_JOB_ID $env:APPVEYOR_REPO_BRANCH

azure-pipelines-arm.yml

@@ -17,6 +17,7 @@ steps:
     node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=dist.zip --dest=$ZIP_DEST
     cd $ZIP_DEST
     unzip -o dist.zip
+    xattr -cr Electron.app    
   displayName: 'Download and unzip dist files for test'
   env:
     CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
@@ -48,38 +49,44 @@ steps:
    mkdir -p $CROSS_ARCH_SNAPSHOTS
    cd src/electron
    node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/snapshot_blob.bin --dest=$CROSS_ARCH_SNAPSHOTS
-   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=cross-arch-snapshots/v8_context_snapshot.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: |
-   export NATIVE_UNITTESTS_DEST=$PWD/src/out/Default
-   cd src/electron
-   node script/download-circleci-artifacts.js --buildNum=$CIRCLE_BUILD_NUM --name=shell_browser_ui_unittests --dest=$NATIVE_UNITTESTS_DEST
-   chmod +x $NATIVE_UNITTESTS_DEST/shell_browser_ui_unittests
-  displayName: 'Download native unittest executables'
-  env:
-    CIRCLE_TOKEN: $(CIRCLECI_TOKEN)
-
 - bash: |
     cd src
     export ELECTRON_OUT_DIR=Default
-    set npm_config_arch=arm64
-    (cd electron && node script/yarn test -- --enable-logging)
-  displayName: 'Run Electron tests'
+    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
@@ -98,6 +105,16 @@ steps:
 
   condition: succeededOrFailed()
 
+- bash: killall Electron || echo "No Electron processes left running"
+  displayName: 'Kill processes left running from last test run'
+  condition: always()
+
+- bash: |
+    rm -rf ~/Library/Application\ Support/Electron*
+    rm -rf ~/Library/Application\ Support/electron*
+  displayName: 'Delete user app data directories'
+  condition: always()
+
 - task: mspremier.PostBuildCleanup.PostBuildCleanup-task.PostBuildCleanup@3
   displayName: 'Clean Agent Directories'
 

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 --disable-gpu
   displayName: 'Run Electron tests'
   env:
     ELECTRON_OUT_DIR: Default
@@ -92,6 +93,6 @@ steps:
   condition: always()
 
 - powershell: |
-    Remove-Item -path $env:APPDATA/Electron* -Recurse
+    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 +19,17 @@ 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
+
+enable_cet_shadow_stack = false

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('utf8'))
     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

@@ -12,5 +12,7 @@ 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')])
+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

@@ -1,38 +0,0 @@
-const fs = require('fs');
-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)
-};
-
-const { wrapInitWithProfilingTimeout } = config;
-delete config.wrapInitWithProfilingTimeout;
-
-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 {
-    if (wrapInitWithProfilingTimeout) {
-      const contents = fs.readFileSync(outPath, 'utf8');
-      const newContents = `function ___electron_webpack_init__() {
-${contents}
-};
-if ((globalThis.process || binding.process).argv.includes("--profile-electron-init")) {
-  setTimeout(___electron_webpack_init__, 0);
-} else {
-  ___electron_webpack_init__();
-}`;
-      fs.writeFileSync(outPath, newContents);
-    }
-    process.exit(0);
-  }
-});

build/webpack/webpack.config.base.js

@@ -2,16 +2,12 @@ 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;
-
 class AccessDependenciesPlugin {
   apply (compiler) {
-    // Only hook into webpack when we are printing the dependency graph
-    if (!onlyPrintingGraph) return;
-
     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));
@@ -21,55 +17,13 @@ class AccessDependenciesPlugin {
   }
 }
 
-const defines = {
-  BUILDFLAG: onlyPrintingGraph ? '(a => a)' : ''
-};
-
-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, flagValue] = flagMatch;
-      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'
-  );
-}
-
 module.exports = ({
   alwaysHasNode,
   loadElectronFromAlternateTarget,
   targetDeletesNodeGlobals,
   target,
-  wrapInitWithProfilingTimeout
+  wrapInitWithProfilingTimeout,
+  wrapInitWithTryCatch
 }) => {
   let entry = path.resolve(electronRoot, 'lib', target, 'init.ts');
   if (!fs.existsSync(entry)) {
@@ -78,75 +32,148 @@ module.exports = ({
 
   const electronAPIFile = path.resolve(electronRoot, 'lib', loadElectronFromAlternateTarget || target, 'api', 'exports', 'electron.ts');
 
-  return ({
-    mode: 'development',
-    devtool: false,
-    entry,
-    target: alwaysHasNode ? 'node' : 'web',
-    output: {
-      filename: `${target}.bundle.js`
-    },
-    wrapInitWithProfilingTimeout,
-    resolve: {
-      alias: {
-        '@electron/internal': path.resolve(electronRoot, 'lib'),
-        electron$: 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
-          ]
+  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
-    },
-    optimization: {
-      minimize: true,
-      minimizer: [
-        new TerserPlugin({
-          terserOptions: {
-            keep_classnames: true,
-            keep_fnames: true
-          }
-        })
-      ]
-    },
-    plugins: [
-      new AccessDependenciesPlugin(),
-      ...(targetDeletesNodeGlobals ? [
-        new webpack.ProvidePlugin({
-          process: ['@electron/internal/common/webpack-provider', 'process'],
-          global: ['@electron/internal/common/webpack-provider', '_global'],
-          Buffer: ['@electron/internal/common/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_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 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.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

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

build/webpack/webpack.config.sandboxed_renderer.js

@@ -1,5 +1,6 @@
 module.exports = require('./webpack.config.base')({
   target: 'sandboxed_renderer',
   alwaysHasNode: false,
-  wrapInitWithProfilingTimeout: true
+  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

@@ -16,17 +16,25 @@ template("webpack_build") {
     inputs = [
                invoker.config_file,
                "//electron/build/webpack/webpack.config.base.js",
-               "//electron/build/webpack/run-compiler.js",
                "//electron/tsconfig.json",
                "//electron/yarn.lock",
                "//electron/typings/internal-ambient.d.ts",
                "//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

@@ -9,31 +9,37 @@ 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',
-
-  'resources/inspector', #Skipping because these are outputs that we don't need
+  # Skip because these are outputs that we don't need.
+  'resources/inspector',
+  'gen/third_party/devtools-frontend/src'
 ]
 
 def skip_path(dep, dist_zip, target_cpu):
@@ -46,7 +52,12 @@ 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
@@ -60,7 +71,7 @@ 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:
@@ -71,17 +82,35 @@ 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

@@ -14,13 +14,13 @@ buildflag_header("buildflags") {
     "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

@@ -28,12 +28,12 @@ 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")
@@ -16,8 +17,6 @@ static_library("chrome") {
     "//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",
@@ -26,18 +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",
@@ -54,18 +45,36 @@ static_library("chrome") {
     "//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",
@@ -73,6 +82,7 @@ static_library("chrome") {
     "//components/proxy_config",
     "//components/security_state/content",
     "//content/public/browser",
+    "//services/strings",
   ]
 
   deps = [
@@ -83,9 +93,24 @@ static_library("chrome") {
 
   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",
@@ -120,14 +145,23 @@ static_library("chrome") {
 
   if (enable_color_chooser) {
     sources += [
+      "//chrome/browser/devtools/devtools_eye_dropper.cc",
+      "//chrome/browser/devtools/devtools_eye_dropper.h",
       "//chrome/browser/platform_util.cc",
       "//chrome/browser/platform_util.h",
       "//chrome/browser/ui/browser_dialogs.h",
       "//chrome/browser/ui/color_chooser.h",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper.cc",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper.h",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.cc",
+      "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.h",
     ]
 
     if (use_aura) {
-      sources += [ "//chrome/browser/platform_util_aura.cc" ]
+      sources += [
+        "//chrome/browser/platform_util_aura.cc",
+        "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_aura.cc",
+      ]
 
       if (!is_win) {
         sources += [
@@ -144,6 +178,8 @@ 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",
@@ -161,7 +197,7 @@ 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" ]
     }
   }
 
@@ -189,8 +225,6 @@ static_library("chrome") {
       "//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",
     ]
@@ -225,8 +259,12 @@ 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",
@@ -235,6 +273,10 @@ 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",
     ]
@@ -266,6 +308,17 @@ 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") {
@@ -277,8 +330,6 @@ source_set("plugins") {
   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",
   ]
@@ -291,26 +342,6 @@ 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",
-      ]
-      frameworks += [ "CoreGraphics.framework" ]
-    }
-    if (is_linux) {
-      deps += [ "//components/services/font/public/cpp" ]
-    }
-  }
 
   # renderer side
   sources += [
@@ -319,19 +350,7 @@ 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",
@@ -358,6 +377,7 @@ source_set("chrome_spellchecker") {
   sources = []
   deps = []
   libs = []
+  public_deps = []
 
   if (enable_builtin_spellchecker) {
     sources += [
@@ -375,7 +395,6 @@ source_set("chrome_spellchecker") {
       "//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) {
@@ -398,9 +417,11 @@ 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

@@ -12,7 +12,6 @@
 #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 +45,7 @@ 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

@@ -127,10 +127,11 @@ 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)
@@ -175,7 +176,7 @@ 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

@@ -333,7 +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() {
@@ -347,7 +347,7 @@ class ScopedSocket {
   }
 
  private:
-  int fd_;
+  int fd_ = -1;
 };
 
 // Returns a random string for uniquifying profile connections.
@@ -473,10 +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(
@@ -508,20 +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_;
 
@@ -826,10 +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

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

@@ -38,8 +38,7 @@ void GlobalMenuBarRegistrarX11::OnWindowUnmapped(x11::Window window) {
   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.
@@ -122,8 +121,7 @@ void GlobalMenuBarRegistrarX11::OnNameOwnerChanged(GObject* /* ignored */,
                                                    GParamSpec* /* ignored */) {
   // If the name owner changed, we need to reregister all the live x11::Window
   // with the system.
-  for (std::set<x11::Window>::const_iterator it = live_windows_.begin();
-       it != live_windows_.end(); ++it) {
-    RegisterXWindow(*it);
+  for (const auto& window : live_windows_) {
+    RegisterXWindow(window);
   }
 }

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

@@ -48,7 +48,7 @@ class GlobalMenuBarRegistrarX11 {
                      GObject*,
                      GParamSpec*);
 
-  GDBusProxy* registrar_proxy_;
+  GDBusProxy* registrar_proxy_ = nullptr;
 
   // x11::Window which want to be registered, but haven't yet been because
   // we're waiting for the proxy to become available.

default_app/default_app.ts

@@ -41,14 +41,14 @@ 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,
@@ -96,7 +96,7 @@ 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" />

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)
@@ -92,13 +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)
-* [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)
 
 ---
 
@@ -133,30 +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.
@@ -389,7 +391,7 @@ 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:
 
@@ -402,13 +404,16 @@ 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 disappears.  This is normally
 because it was crashed or killed.
 
-#### Event: 'child-process-gone'
+### Event: 'child-process-gone'
 
 Returns:
 
@@ -428,11 +433,12 @@ 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` Number - The exit code for the process
       (e.g. status from waitpid if on posix, from GetExitCodeProcess on Windows).
-  * `name` String (optional) - The name of the process. i.e. for plugins it might be Flash.
+  * `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
@@ -501,7 +507,7 @@ 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'
+### Event: 'remote-require' _Deprecated_
 
 Returns:
 
@@ -513,7 +519,7 @@ Emitted when `remote.require()` is called in the renderer process of `webContent
 Calling `event.preventDefault()` will prevent the module from being returned.
 Custom value can be returned by setting `event.returnValue`.
 
-### Event: 'remote-get-global'
+### Event: 'remote-get-global' _Deprecated_
 
 Returns:
 
@@ -525,7 +531,7 @@ Emitted when `remote.getGlobal()` is called in the renderer process of `webConte
 Calling `event.preventDefault()` will prevent the global from being returned.
 Custom value can be returned by setting `event.returnValue`.
 
-### Event: 'remote-get-builtin'
+### Event: 'remote-get-builtin' _Deprecated_
 
 Returns:
 
@@ -537,7 +543,7 @@ Emitted when `remote.getBuiltin()` is called in the renderer process of `webCont
 Calling `event.preventDefault()` will prevent the module from being returned.
 Custom value can be returned by setting `event.returnValue`.
 
-### Event: 'remote-get-current-window'
+### Event: 'remote-get-current-window' _Deprecated_
 
 Returns:
 
@@ -548,7 +554,7 @@ Emitted when `remote.getCurrentWindow()` is called in the renderer process of `w
 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'
+### Event: 'remote-get-current-web-contents' _Deprecated_
 
 Returns:
 
@@ -679,7 +685,6 @@ 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
@@ -748,7 +753,8 @@ 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).
 
@@ -857,9 +863,10 @@ This method returns the application name of the default handler for the protocol
   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.
+
+* `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.
@@ -923,6 +930,10 @@ 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
@@ -1089,6 +1100,7 @@ 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.
@@ -1103,7 +1115,7 @@ 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()`
 
@@ -1140,6 +1152,7 @@ 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:
@@ -1169,9 +1182,9 @@ For `infoType` equal to `basic`:
 
 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.
 
@@ -1180,8 +1193,8 @@ badge.
 
 On macOS, it shows on the dock icon. On Linux, it only works for Unity launcher.
 
-**Note:** Unity launcher requires the existence of a `.desktop` file to work,
-for more information please read [Desktop Environment Integration][unity-requirement].
+**Note:** Unity launcher requires a `.desktop` file to work. For more information,
+please read the [Unity integration documentation][unity-requirement].
 
 ### `app.getBadgeCount()` _Linux_ _macOS_
 
@@ -1340,7 +1353,7 @@ 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
@@ -1419,8 +1432,8 @@ An `Integer` property that returns the badge count for current app. Setting the
 
 On macOS, setting this with any nonzero integer shows on the dock icon. On Linux, this property only works for Unity launcher.
 
-**Note:** Unity launcher requires the existence of a `.desktop` file to work,
-for more information please read [Desktop Environment Integration][unity-requirement].
+**Note:** Unity launcher requires a `.desktop` file to work. For more information,
+please read the [Unity integration documentation][unity-requirement].
 
 **Note:** On macOS, you need to ensure that your application has the permission
 to display notifications for this property to take effect.
@@ -1448,7 +1461,7 @@ A `Boolean` property that returns  `true` if the app is packaged, `false` otherw
 [LSCopyDefaultHandlerForURLScheme]: https://developer.apple.com/library/mac/documentation/Carbon/Reference/LaunchServicesReference/#//apple_ref/c/func/LSCopyDefaultHandlerForURLScheme
 [handoff]: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/Handoff/HandoffFundamentals/HandoffFundamentals.html
 [activity-type]: https://developer.apple.com/library/ios/documentation/Foundation/Reference/NSUserActivity_Class/index.html#//apple_ref/occ/instp/NSUserActivity/activityType
-[unity-requirement]: ../tutorial/desktop-environment-integration.md#unity-launcher
+[unity-requirement]: https://help.ubuntu.com/community/UnityLaunchersAndDesktopFiles#Adding_shortcuts_to_a_launcher
 [mas-builds]: ../tutorial/mac-app-store-submission-guide.md
 [Squirrel-Windows]: https://github.com/Squirrel/Squirrel.Windows
 [JumpListBeginListMSDN]: https://msdn.microsoft.com/en-us/library/windows/desktop/dd378398(v=vs.85).aspx
@@ -1484,3 +1497,12 @@ which native modules you can use in the renderer process.  For more information
 on the direction Electron is going with renderer process restarts and usage of
 native modules in the renderer process please check out this
 [Tracking Issue](https://github.com/electron/electron/issues/18397).
+
+### `app.runningUnderRosettaTranslation` _macOS_ _Readonly_
+
+A `Boolean` which when `true` indicates that the app is currently running
+under the [Rosetta Translator Environment](https://en.wikipedia.org/wiki/Rosetta_(software)).
+
+You can use this property to prompt users to download the arm64 version of
+your application when they are running the x64 version under Rosetta
+incorrectly.

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

docs/api/browser-window.md

@@ -8,9 +8,6 @@ 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
@@ -190,9 +187,9 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
   * `parent` BrowserWindow (optional) - Specify parent window. Default is `null`.
   * `modal` Boolean (optional) - Whether this is a modal window. This only works when the
     window is a child window. Default is `false`.
-  * `acceptFirstMouse` Boolean (optional) - Whether the web view accepts a single
-    mouse-down event that simultaneously activates the window. Default is
-    `false`.
+  * `acceptFirstMouse` Boolean (optional) - Whether clicking an inactive window will also
+  click through to the web contents. Default is `false` on macOS. This option is not
+  configurable on other platforms.
   * `disableAutoHideCursor` Boolean (optional) - Whether to hide cursor when typing.
     Default is `false`.
   * `autoHideMenuBar` Boolean (optional) - Auto hide the menu bar unless the `Alt`
@@ -225,21 +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
@@ -268,12 +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).
+      are more limited. Read more about the option [here](../tutorial/sandbox.md).
     * `enableRemoteModule` Boolean (optional) - Whether to enable the [`remote`](remote.md) module.
       Default is `false`.
     * `session` [Session](session.md#class-session) (optional) - Sets the session used by the
@@ -340,21 +339,19 @@ 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.
     * `worldSafeExecuteJavaScript` Boolean (optional) - If true, values returned from `webFrame.executeJavaScript` will be sanitized to ensure JS values
-      can't unsafely cross between worlds when using `contextIsolation`.  The default
-      is `false`. In Electron 12, the default will be changed to `true`. _Deprecated_
+      can't unsafely cross between worlds when using `contextIsolation`. Defaults to `true`. _Deprecated_
     * `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
@@ -401,6 +398,11 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
       * `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
@@ -466,6 +468,7 @@ 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'
@@ -541,6 +544,12 @@ Note that this is only emitted when the window is being resized manually. Resizi
 
 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:
@@ -556,12 +565,12 @@ 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.
@@ -670,6 +679,20 @@ 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:
@@ -701,94 +724,6 @@ Returns `BrowserWindow | null` - The window that owns the given `browserView`. I
 
 Returns `BrowserWindow | null` - 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')
-
-const installed = 'devtron' in BrowserWindow.getDevToolsExtensions()
-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).
-
 ### Instance Properties
 
 Objects created with `new BrowserWindow` have the following properties:
@@ -843,7 +778,7 @@ 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.
 
@@ -1029,11 +964,11 @@ 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
@@ -1050,6 +985,9 @@ 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,
@@ -1349,9 +1287,20 @@ 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
@@ -1369,6 +1318,8 @@ 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.
@@ -1421,7 +1372,7 @@ 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])`
 
@@ -1430,7 +1381,7 @@ 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
@@ -1648,8 +1599,6 @@ 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
@@ -1678,7 +1627,14 @@ Returns `Boolean` - Whether the menu bar is visible.
 * `visible` Boolean
 * `options` Object (optional)
   * `visibleOnFullScreen` Boolean (optional) _macOS_ - Sets whether
-    the window should be visible above fullscreen windows
+    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.
 
@@ -1712,7 +1668,9 @@ 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_
 
@@ -1790,12 +1748,12 @@ 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_
 
@@ -1829,6 +1787,13 @@ 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:

docs/api/command-line-switches.md

@@ -64,12 +64,13 @@ 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`
+* `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`
 
 ### --enable-logging
 
@@ -79,6 +80,12 @@ 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.
@@ -135,7 +142,8 @@ 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`
@@ -171,14 +179,6 @@ 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
@@ -198,6 +198,14 @@ 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.
@@ -227,12 +235,13 @@ 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))

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.
 
@@ -41,22 +41,22 @@ When `contextIsolation` is enabled in your `webPreferences`, your `preload` scri
 
 The `contextBridge` module has the following methods:
 
-### `contextBridge.exposeInMainWorld(apiKey, api)` _Experimental_
+### `contextBridge.exposeInMainWorld(apiKey, api)`
 
 * `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) 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 +106,26 @@ 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. |
 | `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)`
 

docs/api/desktop-capturer.md

@@ -72,50 +72,6 @@ const constraints = {
 }
 ```
 
-This example shows how to capture a video from a [WebContents](web-contents.md)
-
-```javascript
-// In the renderer process.
-const { desktopCapturer, remote } = require('electron')
-
-desktopCapturer.getMediaSourceIdForWebContents(remote.getCurrentWebContents().id).then(async mediaSourceId => {
-  try {
-    const stream = await navigator.mediaDevices.getUserMedia({
-      audio: {
-        mandatory: {
-          chromeMediaSource: 'tab',
-          chromeMediaSourceId: mediaSourceId
-        }
-      },
-      video: {
-        mandatory: {
-          chromeMediaSource: 'tab',
-          chromeMediaSourceId: mediaSourceId,
-          minWidth: 1280,
-          maxWidth: 1280,
-          minHeight: 720,
-          maxHeight: 720
-        }
-      }
-    })
-    handleStream(stream)
-  } catch (e) {
-    handleError(e)
-  }
-})
-
-function handleStream (stream) {
-  const video = document.querySelector('video')
-  video.srcObject = stream
-  video.onloadedmetadata = (e) => video.play()
-}
-
-function handleError (e) {
-  console.log(e)
-}
-```
-
-
 ## Methods
 
 The `desktopCapturer` module has the following methods:
@@ -138,17 +94,8 @@ Returns `Promise<DesktopCapturerSource[]>` - Resolves with an array of [`Desktop
 **Note** Capturing the screen contents requires user consent on macOS 10.15 Catalina or higher,
 which can detected by [`systemPreferences.getMediaAccessStatus`].
 
-### `desktopCapturer.getMediaSourceIdForWebContents(webContentsId)`
-
-* `webContentsId` number - Id of the WebContents to get stream of
-
-Returns `Promise<string>` - Resolves with the identifier of a WebContents stream, this identifier can be
-used with [`navigator.mediaDevices.getUserMedia`].
-The identifier is **only valid for 10 seconds**.
-The identifier may be empty if not requested from a renderer process.
-
 [`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:
@@ -32,7 +24,7 @@ The `dialog` module has the following methods:
   * `buttonLabel` String (optional) - Custom label for the confirmation button, when
     left empty the default label will be used.
   * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `properties` String[] (optional) - Contains which features the dialog should
+  * `properties` String[] (optional) - Contains which features the dialog should
     use. The following values are supported:
     * `openFile` - Allow files to be selected.
     * `openDirectory` - Allow directories to be selected.
@@ -95,7 +87,7 @@ dialog.showOpenDialogSync(mainWindow, {
   * `buttonLabel` String (optional) - Custom label for the confirmation button, when
     left empty the default label will be used.
   * `filters` [FileFilter[]](structures/file-filter.md) (optional)
-  * `properties` String[] (optional) - Contains which features the dialog should
+  * `properties` String[] (optional) - Contains which features the dialog should
     use. The following values are supported:
     * `openFile` - Allow files to be selected.
     * `openDirectory` - Allow directories to be selected.
@@ -120,7 +112,7 @@ Returns `Promise<Object>` - Resolve with an object containing the following:
 
 * `canceled` Boolean - whether or not the dialog was canceled.
 * `filePaths` String[] - An array of file paths chosen by the user. If the dialog is cancelled this will be an empty array.
-* `bookmarks` String[] (optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated. (For return values, see [table here](#bookmarks-array).)
+* `bookmarks` String[]&#32;(optional) _macOS_ _mas_ - An array matching the `filePaths` array of base64 encoded strings which contains security scoped bookmark data. `securityScopedBookmarks` must be enabled for this to be populated. (For return values, see [table here](#bookmarks-array).)
 
 The `browserWindow` argument allows the dialog to attach itself to a parent window, making it modal.
 
@@ -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
@@ -173,7 +165,7 @@ dialog.showOpenDialog(mainWindow, {
     displayed in front of the filename text field.
   * `showsTagField` Boolean (optional) _macOS_ - Show the tags input box,
     defaults to `true`.
-  * `properties` String[] (optional)
+  * `properties` String[]&#32;(optional)
     * `showHiddenFiles` - Show hidden files in dialog.
     * `createDirectory` _macOS_ - Allow creating new directories from dialog.
     * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
@@ -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
@@ -203,7 +195,7 @@ The `filters` specifies an array of file types that can be displayed, see
   * `nameFieldLabel` String (optional) _macOS_ - Custom label for the text
     displayed in front of the filename text field.
   * `showsTagField` Boolean (optional) _macOS_ - Show the tags input box, defaults to `true`.
-  * `properties` String[] (optional)
+  * `properties` String[]&#32;(optional)
     * `showHiddenFiles` - Show hidden files in dialog.
     * `createDirectory` _macOS_ - Allow creating new directories from dialog.
     * `treatPackageAsDirectory` _macOS_ - Treat packages, such as `.app` folders,
@@ -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.
 
@@ -229,16 +222,16 @@ 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
   `"error"` display the same warning icon.
-  * `buttons` String[] (optional) - Array of texts for buttons. On Windows, an empty array
+  * `buttons` String[]&#32;(optional) - Array of texts for buttons. On Windows, an empty array
     will result in one button labeled "OK".
   * `defaultId` Integer (optional) - Index of the button in the buttons array which will
     be selected by default when the message box opens.
   * `title` String (optional) - Title of the message box, some platforms will not show it.
-  * `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.
@@ -275,16 +268,16 @@ If `browserWindow` is not shown dialog will not be attached to it. In such case
 
 * `browserWindow` [BrowserWindow](browser-window.md) (optional)
 * `options` Object
+  * `message` String - Content of the message box.
   * `type` String (optional) - Can be `"none"`, `"info"`, `"error"`, `"question"` or
   `"warning"`. On Windows, `"question"` displays the same icon as `"info"`, unless
   you set an icon using the `"icon"` option. On macOS, both `"warning"` and
   `"error"` display the same warning icon.
-  * `buttons` String[] (optional) - Array of texts for buttons. On Windows, an empty array
+  * `buttons` String[]&#32;(optional) - Array of texts for buttons. On Windows, an empty array
     will result in one button labeled "OK".
   * `defaultId` Integer (optional) - Index of the button in the buttons array which will
     be selected by default when the message box opens.
   * `title` String (optional) - Title of the message box, some platforms will not show it.
-  * `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 +303,12 @@ 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

@@ -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

@@ -12,7 +12,6 @@ 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')
 const win = new BrowserWindow({ width: 800, height: 600, frame: false })
@@ -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.
 
@@ -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
-const win = require('electron').remote.getCurrentWindow()
+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[]
 

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) => {
@@ -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

@@ -14,7 +14,7 @@ See [`Menu`](menu.md) for examples.
     * `menuItem` MenuItem
     * `browserWindow` [BrowserWindow](browser-window.md) | undefined - This will not be defined if no window is open.
     * `event` [KeyboardEvent](structures/keyboard-event.md)
-  * `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteAndMatchStyle`, `delete`, `selectAll`, `reload`, `forceReload`, `toggleDevTools`, `resetZoom`, `zoomIn`, `zoomOut`, `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
@@ -87,6 +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.)
@@ -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.
@@ -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')
@@ -164,7 +162,7 @@ const template = [
       { role: 'services' },
       { type: 'separator' },
       { role: 'hide' },
-      { role: 'hideothers' },
+      { role: 'hideOthers' },
       { role: 'unhide' },
       { type: 'separator' },
       { role: 'quit' }
@@ -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

docs/api/modernization/overview.md

@@ -1,10 +0,0 @@
-## Modernization
-
-The Electron team is currently undergoing an initiative to modernize our API in a few concrete ways. These include: updating our modules to use idiomatic JS properties instead of separate `getPropertyX` and `setpropertyX`, converting callbacks to promises, and removing some other anti-patterns present in our APIs. The current status of the Promise initiative can be tracked in the [promisification](promisification.md) tracking file.
-
-As we work to perform these updates, we seek to create the least disruptive amount of change at any given time, so as many changes as possible will be introduced in a backward compatible manner and deprecated after enough time has passed to give users a chance to upgrade their API calls.
-
-This document and its child documents will be updated to reflect the latest status of our API changes.
-
-* [Promisification](promisification.md)
-* [Property Updates](property-updates.md)

docs/api/modernization/promisification.md

@@ -1,42 +0,0 @@
-## Promisification
-
-The Electron team recently underwent an initiative to convert callback-based APIs to Promise-based ones. See converted functions below:
-
-- [app.getFileIcon(path[, options], callback)](https://github.com/electron/electron/blob/master/docs/api/app.md#getFileIcon)
-- [contents.capturePage([rect, ]callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#capturePage)
-- [contents.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#executeJavaScript)
-- [contents.printToPDF(options, callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#printToPDF)
-- [contents.savePage(fullPath, saveType, callback)](https://github.com/electron/electron/blob/master/docs/api/web-contents.md#savePage)
-- [contentTracing.getCategories(callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#getCategories)
-- [contentTracing.startRecording(options, callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#startRecording)
-- [contentTracing.stopRecording(resultFilePath, callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#stopRecording)
-- [contentTracing.getTraceBufferUsage(callback)](https://github.com/electron/electron/blob/master/docs/api/content-tracing.md#getTraceBufferUsage)
-- [cookies.flushStore(callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#flushStore)
-- [cookies.get(filter, callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#get)
-- [cookies.remove(url, name, callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#remove)
-- [cookies.set(details, callback)](https://github.com/electron/electron/blob/master/docs/api/cookies.md#set)
-- [debugger.sendCommand(method[, commandParams, callback])](https://github.com/electron/electron/blob/master/docs/api/debugger.md#sendCommand)
-- [desktopCapturer.getSources(options, callback)](https://github.com/electron/electron/blob/master/docs/api/desktop-capturer.md#getSources)
-- [dialog.showOpenDialog([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showOpenDialog)
-- [dialog.showSaveDialog([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showSaveDialog)
-- [inAppPurchase.purchaseProduct(productID, quantity, callback)](https://github.com/electron/electron/blob/master/docs/api/in-app-purchase.md#purchaseProduct)
-- [inAppPurchase.getProducts(productIDs, callback)](https://github.com/electron/electron/blob/master/docs/api/in-app-purchase.md#getProducts)
-- [dialog.showMessageBox([browserWindow, ]options[, callback])](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showMessageBox)
-- [dialog.showCertificateTrustDialog([browserWindow, ]options, callback)](https://github.com/electron/electron/blob/master/docs/api/dialog.md#showCertificateTrustDialog)
-- [netLog.stopLogging([callback])](https://github.com/electron/electron/blob/master/docs/api/net-log.md#stopLogging)
-- [protocol.isProtocolHandled(scheme, callback)](https://github.com/electron/electron/blob/master/docs/api/protocol.md#isProtocolHandled)
-- [ses.clearHostResolverCache([callback])](https://github.com/electron/electron/blob/master/docs/api/session.md#clearHostResolverCache)
-- [ses.clearStorageData([options, callback])](https://github.com/electron/electron/blob/master/docs/api/session.md#clearStorageData)
-- [ses.setProxy(config, callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#setProxy)
-- [ses.resolveProxy(url, callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#resolveProxy)
-- [ses.getCacheSize(callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#getCacheSize)
-- [ses.clearAuthCache(options[, callback])](https://github.com/electron/electron/blob/master/docs/api/session.md#clearAuthCache)
-- [ses.clearCache(callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#clearCache)
-- [ses.getBlobData(identifier, callback)](https://github.com/electron/electron/blob/master/docs/api/session.md#getBlobData)
-- [shell.openExternal(url[, options, callback])](https://github.com/electron/electron/blob/master/docs/api/shell.md#openExternal)
-- [webFrame.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-frame.md#executeJavaScript)
-- [webFrame.executeJavaScriptInIsolatedWorld(worldId, scripts[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/web-frame.md#executeJavaScriptInIsolatedWorld)
-- [webviewTag.capturePage([rect, ]callback)](https://github.com/electron/electron/blob/master/docs/api/webview-tag.md#capturePage)
-- [webviewTag.executeJavaScript(code[, userGesture, callback])](https://github.com/electron/electron/blob/master/docs/api/webview-tag.md#executeJavaScript)
-- [webviewTag.printToPDF(options, callback)](https://github.com/electron/electron/blob/master/docs/api/webview-tag.md#printToPDF)
-- [win.capturePage([rect, ]callback)](https://github.com/electron/electron/blob/master/docs/api/browser-window.md#capturePage)

docs/api/modernization/property-updates.md

@@ -1,41 +0,0 @@
-## Property Updates
-
-The Electron team is currently undergoing an initiative to convert separate getter and setter functions in Electron to bespoke properties with `get` and `set` functionality. During this transition period, both the new properties and old getters and setters of these functions will work correctly and be documented.
-
-## Candidates
-
-* `BrowserWindow`
-  * `menubarVisible`
-* `crashReporter` module
-  * `uploadToServer`
-* `webFrame` modules
-  * `zoomFactor`
-  * `zoomLevel`
-  * `audioMuted`
-* `<webview>`
-  * `zoomFactor`
-  * `zoomLevel`
-  * `audioMuted`
-
-## Converted Properties
-
-* `app` module
-  * `accessibilitySupport`
-  * `applicationMenu`
-  * `badgeCount`
-  * `name`
-* `DownloadItem` class
-  * `savePath`
-* `BrowserWindow` module
-  * `autohideMenuBar`
-  * `resizable`
-  * `maximizable`
-  * `minimizable`
-  * `fullscreenable`
-  * `movable`
-  * `closable`
-  * `backgroundThrottling`
-* `NativeImage`
-  * `isMacTemplateImage`
-* `SystemPreferences` module
-  * `appLevelAppearance`

docs/api/native-theme.md

@@ -34,6 +34,7 @@ Setting this property to `system` will remove the override and
 everything will be reset to the OS default.  By default `themeSource` is `system`.
 
 Settings this property to `dark` will have the following effects:
+
 * `nativeTheme.shouldUseDarkColors` will be `true` when accessed
 * Any UI Electron renders on Linux and Windows including context menus, devtools, etc. will use the dark UI.
 * Any UI the OS renders on macOS including menus, window frames, etc. will use the dark UI.
@@ -41,6 +42,7 @@ Settings this property to `dark` will have the following effects:
 * The `updated` event will be emitted
 
 Settings this property to `light` will have the following effects:
+
 * `nativeTheme.shouldUseDarkColors` will be `false` when accessed
 * Any UI Electron renders on Linux and Windows including context menus, devtools, etc. will use the light UI.
 * Any UI the OS renders on macOS including menus, window frames, etc. will use the light UI.
@@ -49,6 +51,7 @@ Settings this property to `light` will have the following effects:
 
 The usage of this property should align with a classic "dark mode" state machine in your application
 where the user has three options.
+
 * `Follow OS` --> `themeSource = 'system'`
 * `Dark Mode` --> `themeSource = 'dark'`
 * `Light Mode` --> `themeSource = 'light'`

docs/api/net.md

@@ -8,7 +8,7 @@ The `net` module is a client-side API for issuing HTTP(S) requests. It is
 similar to the [HTTP](https://nodejs.org/api/http.html) and
 [HTTPS](https://nodejs.org/api/https.html) modules of Node.js but uses
 Chromium's native networking library instead of the Node.js implementation,
-offering better support for web proxies.
+offering better support for web proxies. It also supports checking network status.
 
 The following is a non-exhaustive list of why you may consider using the `net`
 module instead of the native Node.js modules:
@@ -62,3 +62,25 @@ Creates a [`ClientRequest`](./client-request.md) instance using the provided
 `options` which are directly forwarded to the `ClientRequest` constructor.
 The `net.request` method would be used to issue both secure and insecure HTTP
 requests according to the specified protocol scheme in the `options` object.
+
+### `net.isOnline()`
+
+Returns `Boolean` - Whether there is currently internet connection.
+
+A return value of `false` is a pretty strong indicator that the user
+won't be able to connect to remote sites. However, a return value of
+`true` is inconclusive; even if some link is up, it is uncertain
+whether a particular connection attempt to a particular remote site
+will be successful.
+
+## Properties
+
+### `net.online` _Readonly_
+
+A `Boolean` property. Whether there is currently internet connection.
+
+A return value of `false` is a pretty strong indicator that the user
+won't be able to connect to remote sites. However, a return value of
+`true` is inconclusive; even if some link is up, it is uncertain
+whether a particular connection attempt to a particular remote site
+will be successful.

docs/api/notification.md

@@ -29,9 +29,9 @@ Returns `Boolean` - Whether or not desktop notifications are supported on the cu
 ### `new Notification([options])`
 
 * `options` Object (optional)
-  * `title` String - A title for the notification, which will be shown at the top of the notification window when it is shown.
+  * `title` String (optional) - A title for the notification, which will be shown at the top of the notification window when it is shown.
   * `subtitle` String (optional) _macOS_ - A subtitle for the notification, which will be displayed below the title.
-  * `body` String - The body text of the notification, which will be displayed below the title or subtitle.
+  * `body` String (optional) - The body text of the notification, which will be displayed below the title or subtitle.
   * `silent` Boolean (optional) - Whether or not to emit an OS notification noise when showing the notification.
   * `icon` (String | [NativeImage](native-image.md)) (optional) - An icon to use in the notification.
   * `hasReply` Boolean (optional) _macOS_ - Whether or not to add an inline reply option to the notification.
@@ -41,6 +41,7 @@ Returns `Boolean` - Whether or not desktop notifications are supported on the cu
   * `urgency` String (optional) _Linux_ - The urgency level of the notification. Can be 'normal', 'critical', or 'low'.
   * `actions` [NotificationAction[]](structures/notification-action.md) (optional) _macOS_ - Actions to add to the notification. Please read the available actions and limitations in the `NotificationAction` documentation.
   * `closeButtonText` String (optional) _macOS_ - A custom title for the close button of an alert. An empty string will cause the default localized text to be used.
+  * `toastXml` String (optional) _Windows_ - A custom description of the Notification on Windows superseding all properties above. Provides full customization of design and behavior of the notification.
 
 ### Instance Events
 
@@ -94,6 +95,15 @@ Returns:
 * `event` Event
 * `index` Number - The index of the action that was activated.
 
+#### Event: 'failed' _Windows_
+
+Returns:
+
+* `event` Event
+* `error` String - The error encountered during execution of the `show()` method.
+
+Emitted when an error is encountered while creating and showing the native notification.
+
 ### Instance Methods
 
 Objects created with `new Notification` have the following instance methods:
@@ -162,6 +172,10 @@ If `timeoutType` is set to 'never', the notification never expires. It stays ope
 
 A [`NotificationAction[]`](structures/notification-action.md) property representing the actions of the notification.
 
+#### `notification.toastXml` _Windows_
+
+A `String` property representing the custom Toast XML of the notification.
+
 ### Playing Sounds
 
 On macOS, you can specify the name of the sound you'd like to play when the

docs/api/power-monitor.md

@@ -8,19 +8,19 @@ Process: [Main](../glossary.md#main-process)
 
 The `powerMonitor` module emits the following events:
 
-### Event: 'suspend'
+### Event: 'suspend' _macOS_ _Windows_
 
 Emitted when the system is suspending.
 
-### Event: 'resume'
+### Event: 'resume' _macOS_ _Windows_
 
 Emitted when system is resuming.
 
-### Event: 'on-ac' _Windows_
+### Event: 'on-ac' _macOS_ _Windows_
 
 Emitted when the system changes to AC power.
 
-### Event: 'on-battery' _Windows_
+### Event: 'on-battery' _macOS_  _Windows_
 
 Emitted when system changes to battery power.
 
@@ -39,6 +39,14 @@ Emitted when the system is about to lock the screen.
 
 Emitted as soon as the systems screen is unlocked.
 
+### Event: 'user-did-become-active' _macOS_
+
+Emitted when a login session is activated. See [documentation](https://developer.apple.com/documentation/appkit/nsworkspacesessiondidbecomeactivenotification?language=objc) for more information.
+
+### Event: 'user-did-resign-active' _macOS_
+
+Emitted when a login session is deactivated. See [documentation](https://developer.apple.com/documentation/appkit/nsworkspacesessiondidresignactivenotification?language=objc) for more information.
+
 ## Methods
 
 The `powerMonitor` module has the following methods:
@@ -57,3 +65,18 @@ before considered idle.  `locked` is available on supported systems only.
 Returns `Integer` - Idle time in seconds
 
 Calculate system idle time in seconds.
+
+### `powerMonitor.isOnBatteryPower()`
+
+Returns `Boolean` - Whether the system is on battery power.
+
+To monitor for changes in this property, use the `on-battery` and `on-ac`
+events.
+
+## Properties
+
+### `powerMonitor.onBatteryPower`
+
+A `Boolean` property. True if the system is on battery power.
+
+See [`powerMonitor.isOnBatteryPower()`](#powermonitorisonbatterypower).

docs/api/process.md

@@ -11,28 +11,32 @@ It adds the following events, properties, and methods:
 ## Sandbox
 
 In sandboxed renderers the `process` object contains only a subset of the APIs:
-- `crash()`
-- `hang()`
-- `getCreationTime()`
-- `getHeapStatistics()`
-- `getBlinkMemoryInfo()`
-- `getProcessMemoryInfo()`
-- `getSystemMemoryInfo()`
-- `getSystemVersion()`
-- `getCPUUsage()`
-- `getIOCounters()`
-- `argv`
-- `execPath`
-- `env`
-- `pid`
-- `arch`
-- `platform`
-- `sandboxed`
-- `type`
-- `version`
-- `versions`
-- `mas`
-- `windowsStore`
+
+* `crash()`
+* `hang()`
+* `getCreationTime()`
+* `getHeapStatistics()`
+* `getBlinkMemoryInfo()`
+* `getProcessMemoryInfo()`
+* `getSystemMemoryInfo()`
+* `getSystemVersion()`
+* `getCPUUsage()`
+* `getIOCounters()`
+* `uptime()`
+* `argv`
+* `execPath`
+* `env`
+* `pid`
+* `arch`
+* `platform`
+* `sandboxed`
+* `contextIsolated`
+* `type`
+* `version`
+* `versions`
+* `mas`
+* `windowsStore`
+* `contextId`
 
 ## Events
 
@@ -41,19 +45,6 @@ In sandboxed renderers the `process` object contains only a subset of the APIs:
 Emitted when Electron has loaded its internal initialization script and is
 beginning to load the web page or the main script.
 
-It can be used by the preload script to add removed Node global symbols back to
-the global scope when node integration is turned off:
-
-```javascript
-// preload.js
-const _setImmediate = setImmediate
-const _clearImmediate = clearImmediate
-process.once('loaded', () => {
-  global.setImmediate = _setImmediate
-  global.clearImmediate = _clearImmediate
-})
-```
-
 ## Properties
 
 ### `process.defaultApp` _Readonly_
@@ -91,6 +82,11 @@ A `String` representing the path to the resources directory.
 A `Boolean`. When the renderer process is sandboxed, this property is `true`,
 otherwise it is `undefined`.
 
+### `process.contextIsolated` _Readonly_
+
+A `Boolean` that indicates whether the current renderer context has `contextIsolation` enabled.
+It is `undefined` in the main process.
+
 ### `process.throwDeprecation`
 
 A `Boolean` that controls whether or not deprecation warnings will be thrown as
@@ -104,6 +100,7 @@ A `Boolean` that controls whether or not deprecations printed to `stderr` includ
  This property is instead of the `--trace-deprecation` command line flag.
 
 ### `process.traceProcessWarnings`
+
 A `Boolean` that controls whether or not process warnings printed to `stderr` include
  their stack trace. Setting this to `true` will print stack traces for process warnings
  (including deprecations). This property is instead of the `--trace-warnings` command
@@ -130,6 +127,13 @@ A `String` representing Electron's version string.
 A `Boolean`. If the app is running as a Windows Store app (appx), this property is `true`,
 for otherwise it is `undefined`.
 
+### `process.contextId` _Readonly_
+
+A `String` (optional) representing a globally unique ID of the current JavaScript context.
+Each frame has its own JavaScript context. When contextIsolation is enabled, the isolated
+world also has a separate JavaScript context.
+This property is only available in the renderer process.
+
 ## Methods
 
 The `process` object has the following methods:

docs/api/protocol.md

@@ -112,7 +112,7 @@ expect streaming responses.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
@@ -133,7 +133,7 @@ from protocols that follow the "generic URI syntax" like `file:`.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (Buffer | [ProtocolResponse](structures/protocol-response.md))
 
@@ -157,7 +157,7 @@ protocol.registerBufferProtocol('atom', (request, callback) => {
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
@@ -173,7 +173,7 @@ property.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` ProtocolResponse
 
@@ -188,7 +188,7 @@ should be called with an object that has the `url` property.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (ReadableStream | [ProtocolResponse](structures/protocol-response.md))
 
@@ -251,7 +251,7 @@ Returns `Boolean` - Whether `scheme` is already registered.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
@@ -264,7 +264,7 @@ which sends a file as a response.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (String | [ProtocolResponse](structures/protocol-response.md))
 
@@ -277,7 +277,7 @@ which sends a `String` as a response.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (Buffer | [ProtocolResponse](structures/protocol-response.md))
 
@@ -290,7 +290,7 @@ which sends a `Buffer` as a response.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` [ProtocolResponse](structures/protocol-response.md)
 
@@ -303,7 +303,7 @@ which sends a new HTTP request as a response.
 
 * `scheme` String
 * `handler` Function
-  * `request` ProtocolRequest
+  * `request` [ProtocolRequest](structures/protocol-request.md)
   * `callback` Function
     * `response` (ReadableStream | [ProtocolResponse](structures/protocol-response.md))
 

docs/api/remote.md

@@ -4,6 +4,16 @@
 
 Process: [Renderer](../glossary.md#renderer-process)
 
+> ⚠️ WARNING ⚠️
+> The `remote` module is [deprecated](https://github.com/electron/electron/issues/21408).
+> Instead of `remote`, use [`ipcRenderer`](ipc-renderer.md) and
+> [`ipcMain`](ipc-main.md).
+>
+> Read more about why the `remote` module is deprecated [here](https://medium.com/@nornagon/electrons-remote-module-considered-harmful-70d69500f31).
+>
+> If you still want to use `remote` despite the performance and security
+> concerns, see [@electron/remote](https://github.com/electron/remote).
+
 The `remote` module provides a simple way to do inter-process communication
 (IPC) between the renderer process (web page) and the main process.
 
@@ -25,8 +35,9 @@ win.loadURL('https://github.com')
 you can use [webContents.executeJavaScript](web-contents.md#contentsexecutejavascriptcode-usergesture).
 
 **Note:** The remote module can be disabled for security reasons in the following contexts:
-- [`BrowserWindow`](browser-window.md) - by setting the `enableRemoteModule` option to `false`.
-- [`<webview>`](webview-tag.md) - by setting the `enableremotemodule` attribute to `false`.
+
+* [`BrowserWindow`](browser-window.md) - by setting the `enableRemoteModule` option to `false`.
+* [`<webview>`](webview-tag.md) - by setting the `enableremotemodule` attribute to `false`.
 
 ## Remote Objects
 
@@ -140,11 +151,32 @@ console.log(app)
 
 The `remote` module has the following methods:
 
-### `remote.require(module)`
+### `remote.getCurrentWindow()`
 
-* `module` String
+Returns [`BrowserWindow`](browser-window.md) - The window to which this web page
+belongs.
 
-Returns `any` - The object returned by `require(module)` in the main process.
+**Note:** Do not use `removeAllListeners` on [`BrowserWindow`](browser-window.md).
+Use of this can remove all [`blur`](https://developer.mozilla.org/en-US/docs/Web/Events/blur)
+listeners, disable click events on touch bar buttons, and other unintended
+consequences.
+
+### `remote.getCurrentWebContents()`
+
+Returns [`WebContents`](web-contents.md) - The web contents of this web page.
+
+### `remote.getGlobal(name)`
+
+* `name` String
+
+Returns `any` - The global variable of `name` (e.g. `global[name]`) in the main
+process.
+
+## Properties
+
+### `remote.require`
+
+A `NodeJS.Require` function equivalent to `require(module)` in the main process.
 Modules specified by their relative path will resolve relative to the entrypoint
 of the main process.
 
@@ -176,29 +208,6 @@ module.exports = 'bar'
 const foo = require('electron').remote.require('./foo') // bar
 ```
 
-### `remote.getCurrentWindow()`
-
-Returns [`BrowserWindow`](browser-window.md) - The window to which this web page
-belongs.
-
-**Note:** Do not use `removeAllListeners` on [`BrowserWindow`](browser-window.md).
-Use of this can remove all [`blur`](https://developer.mozilla.org/en-US/docs/Web/Events/blur)
-listeners, disable click events on touch bar buttons, and other unintended
-consequences.
-
-### `remote.getCurrentWebContents()`
-
-Returns [`WebContents`](web-contents.md) - The web contents of this web page.
-
-### `remote.getGlobal(name)`
-
-* `name` String
-
-Returns `any` - The global variable of `name` (e.g. `global[name]`) in the main
-process.
-
-## Properties
-
 ### `remote.process` _Readonly_
 
 A `NodeJS.Process` object.  The `process` object in the main process. This is the same as

docs/api/sandbox-option.md

@@ -1,196 +0,0 @@
-# `sandbox` Option
-
-> Create a browser window with a sandboxed renderer. With this
-option enabled, the renderer must communicate via IPC to the main process in order to access node APIs.
-
-One of the key security features of Chromium is that all blink rendering/JavaScript
-code is executed within a sandbox. This sandbox uses OS-specific features to ensure
-that exploits in the renderer process cannot harm the system.
-
-In other words, when the sandbox is enabled, the renderers can only make changes
-to the system by delegating tasks to the main process via IPC.
-[Here's](https://www.chromium.org/developers/design-documents/sandbox) more
-information about the sandbox.
-
-Since a major feature in Electron is the ability to run Node.js in the
-renderer process (making it easier to develop desktop applications using web
-technologies), the sandbox is disabled by electron. This is because
-most Node.js APIs require system access. `require()` for example, is not
-possible without file system permissions, which are not available in a sandboxed
-environment.
-
-Usually this is not a problem for desktop applications since the code is always
-trusted, but it makes Electron less secure than Chromium for displaying
-untrusted web content. For applications that require more security, the
-`sandbox` flag will force Electron to spawn a classic Chromium renderer that is
-compatible with the sandbox.
-
-A sandboxed renderer doesn't have a Node.js environment running and doesn't
-expose Node.js JavaScript APIs to client code. The only exception is the preload script,
-which has access to a subset of the Electron renderer API.
-
-Another difference is that sandboxed renderers don't modify any of the default
-JavaScript APIs. Consequently, some APIs such as `window.open` will work as they
-do in Chromium (i.e. they do not return a [`BrowserWindowProxy`](browser-window-proxy.md)).
-
-## Example
-
-To create a sandboxed window, pass `sandbox: true` to `webPreferences`:
-
-```js
-let win
-app.whenReady().then(() => {
-  win = new BrowserWindow({
-    webPreferences: {
-      sandbox: true
-    }
-  })
-  win.loadURL('http://google.com')
-})
-```
-
-In the above code the [`BrowserWindow`](browser-window.md) that was created has Node.js disabled and can communicate
-only via IPC. The use of this option stops Electron from creating a Node.js runtime in the renderer. Also,
-within this new window `window.open` follows the native behavior (by default Electron creates a [`BrowserWindow`](browser-window.md)
-and returns a proxy to this via `window.open`).
-
-[`app.enableSandbox`](app.md#appenablesandbox) can be used to force `sandbox: true` for all `BrowserWindow` instances.
-
-```js
-let win
-app.enableSandbox()
-app.whenReady().then(() => {
-  // no need to pass `sandbox: true` since `app.enableSandbox()` was called.
-  win = new BrowserWindow()
-  win.loadURL('http://google.com')
-})
-```
-
-## Preload
-
-An app can make customizations to sandboxed renderers using a preload script.
-Here's an example:
-
-```js
-let win
-app.whenReady().then(() => {
-  win = new BrowserWindow({
-    webPreferences: {
-      sandbox: true,
-      preload: path.join(app.getAppPath(), 'preload.js')
-    }
-  })
-  win.loadURL('http://google.com')
-})
-```
-
-and preload.js:
-
-```js
-// This file is loaded whenever a javascript context is created. It runs in a
-// private scope that can access a subset of Electron renderer APIs. We must be
-// careful to not leak any objects into the global scope!
-const { ipcRenderer, remote } = require('electron')
-const fs = remote.require('fs')
-
-// read a configuration file using the `fs` module
-const buf = fs.readFileSync('allowed-popup-urls.json')
-const allowedUrls = JSON.parse(buf.toString('utf8'))
-
-const defaultWindowOpen = window.open
-
-function customWindowOpen (url, ...args) {
-  if (allowedUrls.indexOf(url) === -1) {
-    ipcRenderer.sendSync('blocked-popup-notification', location.origin, url)
-    return null
-  }
-  return defaultWindowOpen(url, ...args)
-}
-
-window.open = customWindowOpen
-```
-
-Important things to notice in the preload script:
-
-- Even though the sandboxed renderer doesn't have Node.js running, it still has
-  access to a limited node-like environment: `Buffer`, `process`, `setImmediate`,
-  `clearImmediate` and `require` are available.
-- The preload script can indirectly access all APIs from the main process through the
-  `remote` and `ipcRenderer` modules.
-- The preload script must be contained in a single script, but it is possible to have
-  complex preload code composed with multiple modules by using a tool like
-  webpack or browserify. An example of using browserify is below.
-
-To create a browserify bundle and use it as a preload script, something like
-the following should be used:
-
-```sh
-  browserify preload/index.js \
-    -x electron \
-    --insert-global-vars=__filename,__dirname -o preload.js
-```
-
-The `-x` flag should be used with any required module that is already exposed in
-the preload scope, and tells browserify to use the enclosing `require` function
-for it. `--insert-global-vars` will ensure that `process`, `Buffer` and
-`setImmediate` are also taken from the enclosing scope(normally browserify
-injects code for those).
-
-Currently the `require` function provided in the preload scope exposes the
-following modules:
-
-- `electron`
-  - `crashReporter`
-  - `desktopCapturer`
-  - `ipcRenderer`
-  - `nativeImage`
-  - `remote`
-  - `webFrame`
-- `events`
-- `timers`
-- `url`
-
-More may be added as needed to expose more Electron APIs in the sandbox, but any
-module in the main process can already be used through
-`electron.remote.require`.
-
-## Rendering untrusted content
-
-Rendering untrusted content in Electron is still somewhat uncharted territory,
-though some apps are finding success (e.g. Beaker Browser). Our goal is to get
-as close to Chrome as we can in terms of the security of sandboxed content, but
-ultimately we will always be behind due to a few fundamental issues:
-
-1. We do not have the dedicated resources or expertise that Chromium has to
-   apply to the security of its product. We do our best to make use of what we
-   have, to inherit everything we can from Chromium, and to respond quickly to
-   security issues, but Electron cannot be as secure as Chromium without the
-   resources that Chromium is able to dedicate.
-2. Some security features in Chrome (such as Safe Browsing and Certificate
-   Transparency) require a centralized authority and dedicated servers, both of
-   which run counter to the goals of the Electron project. As such, we disable
-   those features in Electron, at the cost of the associated security they
-   would otherwise bring.
-3. There is only one Chromium, whereas there are many thousands of apps built
-   on Electron, all of which behave slightly differently. Accounting for those
-   differences can yield a huge possibility space, and make it challenging to
-   ensure the security of the platform in unusual use cases.
-4. We can't push security updates to users directly, so we rely on app vendors
-   to upgrade the version of Electron underlying their app in order for
-   security updates to reach users.
-
-Here are some things to consider before rendering untrusted content:
-
-- A preload script can accidentally leak privileged APIs to untrusted code,
-  unless [`contextIsolation`](../tutorial/security.md#3-enable-context-isolation-for-remote-content)
-  is also enabled.
-- Some bug in the V8 engine may allow malicious code to access the renderer
-  preload APIs, effectively granting full access to the system through the
-  `remote` module. Therefore, it is highly recommended to [disable the `remote`
-  module](../tutorial/security.md#15-disable-the-remote-module).
-  If disabling is not feasible, you should selectively [filter the `remote`
-  module](../tutorial/security.md#16-filter-the-remote-module).
-- While we make our best effort to backport Chromium security fixes to older
-  versions of Electron, we do not make a guarantee that every fix will be
-  backported. Your best chance at staying secure is to be on the latest stable
-  version of Electron.

docs/api/screen.md

@@ -92,6 +92,8 @@ Returns [`Point`](structures/point.md)
 
 The current absolute position of the mouse pointer.
 
+**Note:** The return value is a DIP point, not a screen physical point.
+
 ### `screen.getPrimaryDisplay()`
 
 Returns [`Display`](structures/display.md) - The primary display.

docs/api/service-workers.md

@@ -45,6 +45,16 @@ Returns:
 
 Emitted when a service worker logs something to the console.
 
+#### Event: 'registration-completed'
+
+Returns:
+
+* `event` Event
+* `details` Object - Information about the registered service worker
+  * `scope` String - The base URL that a service worker is registered for
+
+Emitted when a service worker has been registered. Can occur after a call to [`navigator.serviceWorker.register('/sw.js')`](https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register) successfully resolves or when a Chrome extension is loaded.
+
 ### Instance Methods
 
 The following methods are available on instances of `ServiceWorkers`:

docs/api/session.md

@@ -91,6 +91,41 @@ session.defaultSession.on('will-download', (event, item, webContents) => {
 })
 ```
 
+#### Event: 'extension-loaded'
+
+Returns:
+
+* `event` Event
+* `extension` [Extension](structures/extension.md)
+
+Emitted after an extension is loaded. This occurs whenever an extension is
+added to the "enabled" set of extensions. This includes:
+
+* Extensions being loaded from `Session.loadExtension`.
+* Extensions being reloaded:
+  * from a crash.
+  * if the extension requested it ([`chrome.runtime.reload()`](https://developer.chrome.com/extensions/runtime#method-reload)).
+
+#### Event: 'extension-unloaded'
+
+Returns:
+
+* `event` Event
+* `extension` [Extension](structures/extension.md)
+
+Emitted after an extension is unloaded. This occurs when
+`Session.removeExtension` is called.
+
+#### Event: 'extension-ready'
+
+Returns:
+
+* `event` Event
+* `extension` [Extension](structures/extension.md)
+
+Emitted after an extension is loaded and all necessary browser state is
+initialized to support the start of the extension's background page.
+
 #### Event: 'preconnect'
 
 Returns:
@@ -144,6 +179,76 @@ Emitted when a hunspell dictionary file download fails.  For details
 on the failure you should collect a netlog and inspect the download
 request.
 
+#### Event: 'select-serial-port' _Experimental_
+
+Returns:
+
+* `event` Event
+* `portList` [SerialPort[]](structures/serial-port.md)
+* `webContents` [WebContents](web-contents.md)
+* `callback` Function
+  * `portId` String
+
+Emitted when a serial port needs to be selected when a call to
+`navigator.serial.requestPort` is made. `callback` should be called with
+`portId` to be selected, passing an empty string to `callback` will
+cancel the request.  Additionally, permissioning on `navigator.serial` can
+be managed by using [ses.setPermissionCheckHandler(handler)](#sessetpermissioncheckhandlerhandler)
+with the `serial` permission.
+
+Because this is an experimental feature it is disabled by default.  To enable this feature, you
+will need to use the `--enable-features=ElectronSerialChooser` command line switch.  Additionally
+because this is an experimental Chromium feature you will need to set `enableBlinkFeatures: 'Serial'`
+on the `webPreferences` property when opening a BrowserWindow.
+
+```javascript
+const { app, BrowserWindow } = require('electron')
+
+let win = null
+app.commandLine.appendSwitch('enable-features', 'ElectronSerialChooser')
+
+app.whenReady().then(() => {
+  win = new BrowserWindow({
+    width: 800,
+    height: 600,
+    webPreferences: {
+      enableBlinkFeatures: 'Serial'
+    }
+  })
+  win.webContents.session.on('select-serial-port', (event, portList, webContents, callback) => {
+    event.preventDefault()
+    const selectedPort = portList.find((device) => {
+      return device.vendorId === '9025' && device.productId === '67'
+    })
+    if (!selectedPort) {
+      callback('')
+    } else {
+      callback(selectedPort.portId)
+    }
+  })
+})
+```
+
+#### Event: 'serial-port-added' _Experimental_
+
+Returns:
+
+* `event` Event
+* `port` [SerialPort](structures/serial-port.md)
+* `webContents` [WebContents](web-contents.md)
+
+Emitted after `navigator.serial.requestPort` has been called and `select-serial-port` has fired if a new serial port becomes available.  For example, this event will fire when a new USB device is plugged in.
+
+#### Event: 'serial-port-removed' _Experimental_
+
+Returns:
+
+* `event` Event
+* `port` [SerialPort](structures/serial-port.md)
+* `webContents` [WebContents](web-contents.md)
+
+Emitted after `navigator.serial.requestPort` has been called and `select-serial-port` has fired if a serial port has been removed.  For example, this event will fire when a USB device is unplugged.
+
 ### Instance Methods
 
 The following methods are available on instances of `Session`:
@@ -179,6 +284,27 @@ Writes any unwritten DOMStorage data to disk.
 #### `ses.setProxy(config)`
 
 * `config` Object
+  * `mode` String (optional) - The proxy mode. Should be one of `direct`,
+    `auto_detect`, `pac_script`, `fixed_servers` or `system`. If it's
+    unspecified, it will be automatically determined based on other specified
+    options.
+    * `direct`
+      In direct mode all connections are created directly, without any proxy involved.
+    * `auto_detect`
+      In auto_detect mode the proxy configuration is determined by a PAC script that can
+      be downloaded at http://wpad/wpad.dat.
+    * `pac_script`
+      In pac_script mode the proxy configuration is determined by a PAC script that is
+      retrieved from the URL specified in the `pacScript`. This is the default mode
+      if `pacScript` is specified.
+    * `fixed_servers`
+      In fixed_servers mode the proxy configuration is specified in `proxyRules`.
+      This is the default mode if `proxyRules` is specified.
+    * `system`
+      In system mode the proxy configuration is taken from the operating system.
+      Note that the system mode is different from setting no proxy configuration.
+      In the latter case, Electron falls back to the system settings
+      only if no command-line options influence the proxy configuration.
   * `pacScript` String (optional) - The URL associated with the PAC file.
   * `proxyRules` String (optional) - Rules indicating which proxies to use.
   * `proxyBypassRules` String (optional) - Rules indicating which URLs should
@@ -188,9 +314,12 @@ Returns `Promise<void>` - Resolves when the proxy setting process is complete.
 
 Sets the proxy settings.
 
-When `pacScript` and `proxyRules` are provided together, the `proxyRules`
+When `mode` is unspecified, `pacScript` and `proxyRules` are provided together, the `proxyRules`
 option is ignored and `pacScript` configuration is applied.
 
+You may need `ses.closeAllConnections` to close currently in flight connections to prevent
+pooled sockets using previous proxy from being reused by future requests.
+
 The `proxyRules` has to follow the rules below:
 
 ```sh
@@ -226,7 +355,7 @@ The `proxyBypassRules` is a comma separated list of rules described below:
      "foobar.com", "*foobar.com", "*.foobar.com", "*foobar.com:99",
      "https://x.*.y.com:99"
 
- * `"." HOSTNAME_SUFFIX_PATTERN [ ":" PORT ]`
+* `"." HOSTNAME_SUFFIX_PATTERN [ ":" PORT ]`
 
    Match a particular domain suffix.
 
@@ -259,6 +388,10 @@ The `proxyBypassRules` is a comma separated list of rules described below:
 
 Returns `Promise<String>` - Resolves with the proxy information for `url`.
 
+#### `ses.forceReloadProxyConfig()`
+
+Returns `Promise<void>` - Resolves when the all internal states of proxy service is reset and the latest proxy configuration is reapplied if it's already available. The pac script will be fetched from `pacScript` again if the proxy mode is `pac_script`.
+
 #### `ses.setDownloadPath(path)`
 
 * `path` String - The download location.
@@ -300,6 +433,12 @@ window.webContents.session.enableNetworkEmulation({ offline: true })
 
 Preconnects the given number of sockets to an origin.
 
+#### `ses.closeAllConnections()`
+
+Returns `Promise<void>` - Resolves when all connections are closed.
+
+**Note:** It will terminate / fail all requests currently in flight.
+
 #### `ses.disableNetworkEmulation()`
 
 Disables any network emulation already active for the `session`. Resets to
@@ -316,7 +455,7 @@ the original network configuration.
     * `errorCode` Integer - Error code.
   * `callback` Function
     * `verificationResult` Integer - Value can be one of certificate error codes
-    from [here](https://code.google.com/p/chromium/codesearch#chromium/src/net/base/net_error_list.h).
+    from [here](https://source.chromium.org/chromium/chromium/src/+/master:net/base/net_error_list.h).
     Apart from the certificate error codes, the following special codes can be used.
       * `0` - Indicates success and disables Certificate Transparency verification.
       * `-2` - Indicates failure.
@@ -344,12 +483,16 @@ win.webContents.session.setCertificateVerifyProc((request, callback) => {
 })
 ```
 
+> **NOTE:** The result of this procedure is cached by the network service.
+
 #### `ses.setPermissionRequestHandler(handler)`
 
 * `handler` Function | null
   * `webContents` [WebContents](web-contents.md) - WebContents requesting the permission.  Please note that if the request comes from a subframe you should use `requestingUrl` to check the request origin.
   * `permission` String - The type of requested permission.
+    * `clipboard-read` - Request access to read from the clipboard.
     * `media` -  Request access to media devices such as camera, microphone and speakers.
+    * `display-capture` - Request access to capture the screen.
     * `mediaKeySystem` - Request access to DRM protected content.
     * `geolocation` - Request access to user's current location.
     * `notifications` - Request notification creation and the ability to display them in the user's system tray.
@@ -358,6 +501,7 @@ win.webContents.session.setCertificateVerifyProc((request, callback) => {
     * `pointerLock` - Request to directly interpret mouse movements as an input method. Click [here](https://developer.mozilla.org/en-US/docs/Web/API/Pointer_Lock_API) to know more.
     * `fullscreen` - Request for the app to enter fullscreen mode.
     * `openExternal` - Request to open links in external applications.
+    * `unknown` - An unrecognized permission request
   * `callback` Function
     * `permissionGranted` Boolean - Allow or deny the permission.
   * `details` Object - Some properties are only available on certain permission types.
@@ -369,7 +513,9 @@ win.webContents.session.setCertificateVerifyProc((request, callback) => {
 
 Sets the handler which can be used to respond to permission requests for the `session`.
 Calling `callback(true)` will allow the permission and `callback(false)` will reject it.
-To clear the handler, call `setPermissionRequestHandler(null)`.
+To clear the handler, call `setPermissionRequestHandler(null)`.  Please note that
+you must also implement `setPermissionCheckHandler` to get complete permission handling.
+Most web APIs do a permission check and then make a permission request if the check is denied.
 
 ```javascript
 const { session } = require('electron')
@@ -384,29 +530,33 @@ session.fromPartition('some-partition').setPermissionRequestHandler((webContents
 
 #### `ses.setPermissionCheckHandler(handler)`
 
-* `handler` Function<Boolean> | null
-  * `webContents` [WebContents](web-contents.md) - WebContents checking the permission.  Please note that if the request comes from a subframe you should use `requestingUrl` to check the request origin.
-  * `permission` String - Enum of 'media'.
+* `handler` Function\<Boolean> | null
+  * `webContents` ([WebContents](web-contents.md) | null) - WebContents checking the permission.  Please note that if the request comes from a subframe you should use `requestingUrl` to check the request origin.  All cross origin sub frames making permission checks will pass a `null` webContents to this handler, while certain other permission checks such as `notifications` checks will always pass `null`.  You should use `embeddingOrigin` and `requestingOrigin` to determine what origin the owning frame and the requesting frame are on respectively.
+  * `permission` String - Type of permission check.  Valid values are `midiSysex`, `notifications`, `geolocation`, `media`,`mediaKeySystem`,`midi`, `pointerLock`, `fullscreen`, `openExternal`, or `serial`.
   * `requestingOrigin` String - The origin URL of the permission check
   * `details` Object - Some properties are only available on certain permission types.
-    * `securityOrigin` String - The security origin of the `media` check.
-    * `mediaType` String - The type of media access being requested, can be `video`,
+    * `embeddingOrigin` String (optional) - The origin of the frame embedding the frame that made the permission check.  Only set for cross-origin sub frames making permission checks.
+    * `securityOrigin` String (optional) - The security origin of the `media` check.
+    * `mediaType` String (optional) - The type of media access being requested, can be `video`,
       `audio` or `unknown`
-    * `requestingUrl` String - The last URL the requesting frame loaded
+    * `requestingUrl` String (optional) - The last URL the requesting frame loaded.  This is not provided for cross-origin sub frames making permission checks.
     * `isMainFrame` Boolean - Whether the frame making the request is the main frame
 
 Sets the handler which can be used to respond to permission checks for the `session`.
-Returning `true` will allow the permission and `false` will reject it.
+Returning `true` will allow the permission and `false` will reject it.  Please note that
+you must also implement `setPermissionRequestHandler` to get complete permission handling.
+Most web APIs do a permission check and then make a permission request if the check is denied.
 To clear the handler, call `setPermissionCheckHandler(null)`.
 
 ```javascript
 const { session } = require('electron')
-session.fromPartition('some-partition').setPermissionCheckHandler((webContents, permission) => {
-  if (webContents.getURL() === 'some-host' && permission === 'notifications') {
-    return false // denied
+const url = require('url')
+session.fromPartition('some-partition').setPermissionCheckHandler((webContents, permission, requestingOrigin) => {
+  if (new URL(requestingOrigin).hostname === 'some-host' && permission === 'notifications') {
+    return true // granted
   }
 
-  return true
+  return false // denied
 })
 ```
 
@@ -458,6 +608,29 @@ will be temporary.
 
 Returns `String` - The user agent for this session.
 
+#### `ses.setSSLConfig(config)`
+
+* `config` Object
+  * `minVersion` String (optional) - Can be `tls1`, `tls1.1`, `tls1.2` or `tls1.3`. The
+    minimum SSL version to allow when connecting to remote servers. Defaults to
+    `tls1`.
+  * `maxVersion` String (optional) - Can be `tls1.2` or `tls1.3`. The maximum SSL version
+    to allow when connecting to remote servers. Defaults to `tls1.3`.
+  * `disabledCipherSuites` Integer[] (optional) - List of cipher suites which
+    should be explicitly prevented from being used in addition to those
+    disabled by the net built-in policy.
+    Supported literal forms: 0xAABB, where AA is `cipher_suite[0]` and BB is
+    `cipher_suite[1]`, as defined in RFC 2246, Section 7.4.1.2. Unrecognized but
+    parsable cipher suites in this form will not return an error.
+    Ex: To disable TLS_RSA_WITH_RC4_128_MD5, specify 0x0004, while to
+    disable TLS_ECDH_ECDSA_WITH_RC4_128_SHA, specify 0xC002.
+    Note that TLSv1.3 ciphers cannot be disabled using this mechanism.
+
+Sets the SSL configuration for the session. All subsequent network requests
+will use the new configuration. Existing network connections (such as WebSocket
+connections) will not be terminated, but old sockets in the pool will not be
+reused for new connections.
+
 #### `ses.getBlobData(identifier)`
 
 * `identifier` String - Valid UUID.
@@ -510,6 +683,16 @@ this session just before normal `preload` scripts run.
 Returns `String[]` an array of paths to preload scripts that have been
 registered.
 
+#### `ses.setSpellCheckerEnabled(enable)`
+
+* `enable` Boolean
+
+Sets whether to enable the builtin spell checker.
+
+#### `ses.isSpellCheckerEnabled()`
+
+Returns `Boolean` - Whether the builtin spell checker is enabled.
+
 #### `ses.setSpellCheckerLanguages(languages)`
 
 * `languages` String[] - An array of language codes to enable the spellchecker for.
@@ -567,9 +750,13 @@ will not work on non-persistent (in-memory) sessions.
 
 **Note:** On macOS and Windows 10 this word will be removed from the OS custom dictionary as well
 
-#### `ses.loadExtension(path)`
+#### `ses.loadExtension(path[, options])`
 
 * `path` String - Path to a directory containing an unpacked Chrome extension
+* `options` Object (optional)
+  * `allowFileAccess` Boolean - Whether to allow the extension to read local files over `file://`
+    protocol and inject content scripts into `file://` pages. This is required e.g. for loading
+    devtools extensions on `file://` URLs. Defaults to false.
 
 Returns `Promise<Extension>` - resolves when the extension is loaded.
 
@@ -592,7 +779,11 @@ const { app, session } = require('electron')
 const path = require('path')
 
 app.on('ready', async () => {
-  await session.defaultSession.loadExtension(path.join(__dirname, 'react-devtools'))
+  await session.defaultSession.loadExtension(
+    path.join(__dirname, 'react-devtools'),
+    // allowFileAccess is required to load the devtools extension on file:// URLs.
+    { allowFileAccess: true }
+  )
   // Note that in order to use the React DevTools extension, you'll need to
   // download and unzip a copy of the extension.
 })
@@ -631,6 +822,11 @@ Returns `Extension[]` - A list of all loaded extensions.
 **Note:** This API cannot be called before the `ready` event of the `app` module
 is emitted.
 
+#### `ses.getStoragePath()`
+
+A `String | null` indicating the absolute file system path where data for this
+session is persisted on disk.  For in memory sessions this returns `null`.
+
 ### Instance Properties
 
 The following properties are available on instances of `Session`:
@@ -638,7 +834,16 @@ The following properties are available on instances of `Session`:
 #### `ses.availableSpellCheckerLanguages` _Readonly_
 
 A `String[]` array which consists of all the known available spell checker languages.  Providing a language
-code to the `setSpellCheckerLanaguages` API that isn't in this array will result in an error.
+code to the `setSpellCheckerLanguages` API that isn't in this array will result in an error.
+
+#### `ses.spellCheckerEnabled`
+
+A `Boolean` indicating whether builtin spell checker is enabled.
+
+#### `ses.storagePath` _Readonly_
+
+A `String | null` indicating the absolute file system path where data for this
+session is persisted on disk.  For in memory sessions this returns `null`.
 
 #### `ses.cookies` _Readonly_
 
@@ -662,12 +867,12 @@ const path = require('path')
 
 app.whenReady().then(() => {
   const protocol = session.fromPartition('some-partition').protocol
-  protocol.registerFileProtocol('atom', (request, callback) => {
+  if (!protocol.registerFileProtocol('atom', (request, callback) => {
     const url = request.url.substr(7)
     callback({ path: path.normalize(`${__dirname}/${url}`) })
-  }, (error) => {
-    if (error) console.error('Failed to register protocol')
-  })
+  })) {
+    console.error('Failed to register protocol')
+  }
 })
 ```
 

docs/api/share-menu.md

@@ -0,0 +1,47 @@
+# ShareMenu
+
+The `ShareMenu` class creates [Share Menu][share-menu] on macOS, which can be
+used to share information from the current context to apps, social media
+accounts, and other services.
+
+For including the share menu as a submenu of other menus, please use the
+`shareMenu` role of [`MenuItem`](menu-item.md).
+
+## Class: ShareMenu
+
+> Create share menu on macOS.
+
+Process: [Main](../glossary.md#main-process)
+
+### `new ShareMenu(sharingItem)`
+
+* `sharingItem` SharingItem - The item to share.
+
+Creates a new share menu.
+
+### Instance Methods
+
+The `shareMenu` object has the following instance methods:
+
+#### `shareMenu.popup([options])`
+
+* `options` PopupOptions (optional)
+  * `browserWindow` [BrowserWindow](browser-window.md) (optional) - Default is the focused window.
+  * `x` Number (optional) - Default is the current mouse cursor position.
+    Must be declared if `y` is declared.
+  * `y` Number (optional) - Default is the current mouse cursor position.
+    Must be declared if `x` is declared.
+  * `positioningItem` Number (optional) _macOS_ - The index of the menu item to
+    be positioned under the mouse cursor at the specified coordinates. Default
+    is -1.
+  * `callback` Function (optional) - Called when menu is closed.
+
+Pops up this menu as a context menu in the [`BrowserWindow`](browser-window.md).
+
+#### `shareMenu.closePopup([browserWindow])`
+
+* `browserWindow` [BrowserWindow](browser-window.md) (optional) - Default is the focused window.
+
+Closes the context menu in the `browserWindow`.
+
+[share-menu]: https://developer.apple.com/design/human-interface-guidelines/macos/extensions/share-extensions/