Bump v18.3.5

Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com>

.circleci/config/base.yml

@@ -24,7 +24,7 @@ parameters:
   linux-publish-arch-limit:
     type: enum
     default: all
-    enum: ["all", "arm", "arm64", "x64"]
+    enum: ["all", "arm", "arm64", "x64", "ia32"]
 
   run-macos-publish:
     type: boolean
@@ -55,9 +55,9 @@ executors:
         enum: ["macos.x86.medium.gen2", "large"]
       xcode:
         description: "xcode version"
-        default: 13.3.0
+        default: 13.2.1
         type: enum
-        enum: ["12.4.0", "13.3.0"]
+        enum: ["12.4.0", "13.2.1"]
 
     macos:
       xcode: << parameters.xcode >>
@@ -113,6 +113,12 @@ env-unittests: &env-unittests
   BUILD_TARGET: electron/spec:chromium_unittests
   TESTS_CONFIG: src/electron/spec/configs/unittests.yml
 
+# Build targets options.
+env-ia32: &env-ia32
+  GN_EXTRA_ARGS: 'target_cpu = "x86"'
+  NPM_CONFIG_ARCH: ia32
+  TARGET_ARCH: ia32
+
 env-arm: &env-arm
   GN_EXTRA_ARGS: 'target_cpu = "arm"'
   MKSNAPSHOT_TOOLCHAIN: //build/toolchain/linux:clang_arm
@@ -238,20 +244,11 @@ step-depot-tools-get: &step-depot-tools-get
     name: Get depot tools
     command: |
       git clone --depth=1 https://chromium.googlesource.com/chromium/tools/depot_tools.git
+      # remove ninjalog_uploader_wrapper.py from autoninja since we don't use it and it causes problems
       if [ "`uname`" == "Darwin" ]; then
-        # remove ninjalog_uploader_wrapper.py from autoninja since we don't use it and it causes problems
         sed -i '' '/ninjalog_uploader_wrapper.py/d' ./depot_tools/autoninja
       else
         sed -i '/ninjalog_uploader_wrapper.py/d' ./depot_tools/autoninja
-        # Remove swift-format dep from cipd on macOS until we send a patch upstream.
-        cd depot_tools
-        patch gclient.py -R \<<'EOF'
-      676,677c676
-      <         packages = dep_value.get('packages', [])
-      <         for package in (x for x in packages if "infra/3pp/tools/swift-format" not in x.get('package')):
-      ---
-      >         for package in dep_value.get('packages', []):
-      EOF
       fi
 
 step-depot-tools-add-to-path: &step-depot-tools-add-to-path
@@ -357,14 +354,14 @@ step-restore-brew-cache: &step-restore-brew-cache
       - /usr/local/Cellar/gnu-tar
       - /usr/local/bin/gtar
     keys:
-      - v5-brew-cache-{{ arch }}
+      - v4-brew-cache-{{ arch }}
 
 step-save-brew-cache: &step-save-brew-cache
   save_cache:
     paths:
       - /usr/local/Cellar/gnu-tar
       - /usr/local/bin/gtar
-    key: v5-brew-cache-{{ arch }}
+    key: v4-brew-cache-{{ arch }}
     name: Persisting brew cache
 
 step-get-more-space-on-mac: &step-get-more-space-on-mac
@@ -373,7 +370,6 @@ step-get-more-space-on-mac: &step-get-more-space-on-mac
     command: |
       if [ "`uname`" == "Darwin" ]; then
         sudo mkdir -p $TMPDIR/del-target
-
         tmpify() {
           if [ -d "$1" ]; then
             sudo mv "$1" $TMPDIR/del-target/$(echo $1|shasum -a 256|head -n1|cut -d " " -f1)
@@ -445,11 +441,9 @@ step-get-more-space-on-mac: &step-get-more-space-on-mac
     background: true
 
 # On macOS delete all .git directories under src/ expect for
-# third_party/angle/ and third_party/dawn/ because of build time generation of files
+# third_party/angle/ because of 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
-# and dawn/common/Version_autogen.h depends on  third_party/dawn/.git/HEAD
-# https://dawn-review.googlesource.com/c/dawn/+/83901
 # TODO: maybe better to always leave out */.git/HEAD file for all targets ?
 step-delete-git-directories: &step-delete-git-directories
   run:
@@ -457,7 +451,7 @@ step-delete-git-directories: &step-delete-git-directories
     command: |
       if [ "`uname`" == "Darwin" ]; then
         cd src
-        ( find . -type d -name ".git" -not -path "./third_party/angle/*" -not -path "./third_party/dawn/*" ) | xargs rm -rf
+        ( find . -type d -name ".git" -not -path "./third_party/angle/*" ) | xargs rm -rf
       fi
 
 # On macOS the yarn install command during gclient sync was run on a linux
@@ -473,13 +467,6 @@ step-install-npm-deps-on-mac: &step-install-npm-deps-on-mac
         node script/yarn install
       fi
 
-step-install-npm-deps: &step-install-npm-deps
-  run:
-    name: Install node_modules
-    command: |
-      cd src/electron
-      node script/yarn install --frozen-lockfile
-
 # This step handles the differences between the linux "gclient sync"
 # and the expected state on macOS
 step-fix-sync: &step-fix-sync
@@ -549,7 +536,7 @@ step-gn-check: &step-gn-check
 step-electron-build: &step-electron-build
   run:
     name: Electron build
-    no_output_timeout: 60m
+    no_output_timeout: 30m
     command: |
       # On arm platforms we generate a cross-arch ffmpeg that ninja does not seem
       # to realize is not correct / should be rebuilt.  We delete it here so it is
@@ -590,6 +577,8 @@ step-maybe-electron-dist-strip: &step-maybe-electron-dist-strip
       if [ "$STRIP_BINARIES" == "true" ] && [ "`uname`" == "Linux" ]; then
         if [ x"$TARGET_ARCH" == x ]; then
           target_cpu=x64
+        elif [ "$TARGET_ARCH" == "ia32" ]; then
+          target_cpu=x86
         else
           target_cpu="$TARGET_ARCH"
         fi
@@ -652,7 +641,6 @@ step-persist-data-for-tests: &step-persist-data-for-tests
       - src/out/Default/mksnapshot.zip
       - src/out/Default/chromedriver.zip
       - src/out/Default/gen/node_headers
-      - src/out/Default/overlapped-checker
       - src/out/ffmpeg/ffmpeg.zip
       - src/electron
       - src/third_party/electron_node
@@ -679,6 +667,13 @@ step-electron-dist-unzip: &step-electron-dist-unzip
       #    passed.
       unzip -:o dist.zip
 
+step-ffmpeg-unzip: &step-ffmpeg-unzip
+  run:
+    name: Unzip ffmpeg.zip
+    command: |
+      cd src/out/ffmpeg
+      unzip -:o ffmpeg.zip
+
 step-mksnapshot-unzip: &step-mksnapshot-unzip
   run:
     name: Unzip mksnapshot.zip
@@ -707,6 +702,13 @@ step-ffmpeg-build: &step-ffmpeg-build
       cd src
       ninja -C out/ffmpeg electron:electron_ffmpeg_zip -j $NUMBER_OF_NINJA_PROCESSES
 
+step-verify-ffmpeg: &step-verify-ffmpeg
+  run:
+    name: Verify ffmpeg
+    command: |
+      cd src
+      python electron/script/verify-ffmpeg.py --source-root "$PWD" --build-dir out/Default --ffmpeg-path out/ffmpeg
+
 step-verify-mksnapshot: &step-verify-mksnapshot
   run:
     name: Verify mksnapshot
@@ -899,7 +901,7 @@ step-restore-out-cache: &step-restore-out-cache
     paths:
       - ./src/out/Default
     keys:
-      - v10-out-cache-{{ checksum "src/electron/.depshash" }}-{{ checksum "src/electron/.depshash-target" }}
+      - v9-out-cache-{{ checksum "src/electron/.depshash" }}-{{ checksum "src/electron/.depshash-target" }}
     name: Restoring out cache
 
 step-set-git-cache-path: &step-set-git-cache-path
@@ -923,7 +925,7 @@ step-save-out-cache: &step-save-out-cache
   save_cache:
     paths:
       - ./src/out/Default
-    key: v10-out-cache-{{ checksum "src/electron/.depshash" }}-{{ checksum "src/electron/.depshash-target" }}
+    key: v9-out-cache-{{ checksum "src/electron/.depshash" }}-{{ checksum "src/electron/.depshash-target" }}
     name: Persisting out cache
 
 step-run-electron-only-hooks: &step-run-electron-only-hooks
@@ -985,16 +987,9 @@ step-ts-compile: &step-ts-compile
   run:
     name: Run TS/JS compile on doc only change
     command: |
-      cd src/electron
-      node script/yarn create-typescript-definitions
-      node script/yarn tsc -p tsconfig.default_app.json --noEmit
-      for f in build/webpack/*.js
-      do
-        out="${f:29}"
-        if [ "$out" != "base.js" ]; then
-          node script/yarn webpack --config $f --output-filename=$out --output-path=./.tmp --env.mode=development
-        fi
-      done
+      cd src
+      ninja -C out/Default electron:default_app_js -j $NUMBER_OF_NINJA_PROCESSES
+      ninja -C out/Default electron:electron_js2c -j $NUMBER_OF_NINJA_PROCESSES
 
 # List of all steps.
 steps-electron-gn-check: &steps-electron-gn-check
@@ -1002,7 +997,6 @@ steps-electron-gn-check: &steps-electron-gn-check
     - *step-checkout-electron
     - *step-depot-tools-get
     - *step-depot-tools-add-to-path
-    - install-python2-mac
     - *step-setup-env-for-build
     - *step-setup-goma-for-build
     - *step-generate-deps-hash
@@ -1016,11 +1010,86 @@ steps-electron-ts-compile-for-doc-change: &steps-electron-ts-compile-for-doc-cha
   steps:
     # Checkout - Copied from steps-checkout
     - *step-checkout-electron
-    - *step-install-npm-deps
+    - *step-depot-tools-get
+    - *step-depot-tools-add-to-path
+    - *step-restore-brew-cache
+    - *step-install-gnutar-on-mac
+    - *step-get-more-space-on-mac
+    - *step-setup-goma-for-build
+    - *step-generate-deps-hash
+    - *step-touch-sync-done
+    - maybe-restore-portaled-src-cache
+    - *step-maybe-restore-git-cache
+    - *step-set-git-cache-path
+    # This sync call only runs if .circle-sync-done is an EMPTY file
+    - *step-gclient-sync
+    # These next few steps reset Electron to the correct commit regardless of which cache was restored
+    - run:
+        name: Wipe Electron
+        command: rm -rf src/electron
+    - *step-checkout-electron
+    - *step-run-electron-only-hooks
+    - *step-generate-deps-hash-cleanly
+    - *step-mark-sync-done
+    - *step-minimize-workspace-size-from-checkout
+
+    - *step-depot-tools-add-to-path
+    - *step-setup-env-for-build
+    - *step-wait-for-goma
+    - *step-get-more-space-on-mac
+    - *step-install-npm-deps-on-mac
+    - *step-fix-sync
+    - *step-gn-gen-default
 
     #Compile ts/js to verify doc change didn't break anything
     - *step-ts-compile
 
+steps-native-tests: &steps-native-tests
+  steps:
+    - attach_workspace:
+        at: .
+    - *step-depot-tools-add-to-path
+    - *step-setup-env-for-build
+    - *step-setup-goma-for-build
+    - *step-wait-for-goma
+    - *step-gn-gen-default
+
+    - run:
+        name: Build tests
+        command: |
+          cd src
+          ninja -C out/Default $BUILD_TARGET
+    - *step-show-goma-stats
+
+    - *step-setup-linux-for-headless-testing
+    - run:
+        name: Run tests
+        command: |
+          mkdir test_results
+          python src/electron/script/native-tests.py run \
+            --config $TESTS_CONFIG \
+            --tests-dir src/out/Default \
+            --output-dir test_results  \
+            $TESTS_ARGS
+
+    - store_artifacts:
+        path: test_results
+        destination: test_results  # Put it in the root folder.
+    - store_test_results:
+        path: test_results
+
+steps-verify-ffmpeg: &steps-verify-ffmpeg
+  steps:
+    - attach_workspace:
+        at: .
+    - *step-depot-tools-add-to-path
+    - *step-electron-dist-unzip
+    - *step-ffmpeg-unzip
+    - *step-setup-linux-for-headless-testing
+
+    - *step-verify-ffmpeg
+    - *step-maybe-notify-slack-failure
+
 steps-tests: &steps-tests
   steps:
     - attach_workspace:
@@ -1121,31 +1190,6 @@ steps-test-node: &steps-test-node
 
 # Command Aliases
 commands:
-  install-python2-mac:
-    steps:
-      - restore_cache:
-          keys:
-            - v2.7.18-python-cache-{{ arch }}
-          name: Restore python cache
-      - run:
-          name: Install python2 on macos
-          command: |
-            if [ "`uname`" == "Darwin" ]; then
-              if [ ! -f "python-downloads/python-2.7.18-macosx10.9.pkg" ]; then
-                mkdir python-downloads
-                echo 'Downloading Python 2.7.18'
-                curl -O https://dev-cdn.electronjs.org/python/python-2.7.18-macosx10.9.pkg
-                mv python-2.7.18-macosx10.9.pkg python-downloads
-              else
-                echo 'Using Python install from cache'
-              fi
-              sudo installer -pkg python-downloads/python-2.7.18-macosx10.9.pkg -target /        
-            fi
-      - save_cache:
-          paths:
-            - python-downloads
-          key: v2.7.18-python-cache-{{ arch }}
-          name: Persisting python cache
   maybe-restore-portaled-src-cache:
     parameters:
       halt-if-successful:
@@ -1201,7 +1245,6 @@ commands:
             mv_if_exist src/out/Default/hunspell_dictionaries.zip
             mv_if_exist src/cross-arch-snapshots
             mv_if_exist src/out/electron_ninja_log
-            mv_if_exist src/out/Default/.ninja_log
           when: always
       - store_artifacts:
           path: generated_artifacts
@@ -1257,6 +1300,8 @@ commands:
                   target_os=linux
                   if [ x"$TARGET_ARCH" == x ]; then
                     target_cpu=x64
+                  elif [ "$TARGET_ARCH" == "ia32" ]; then
+                    target_cpu=x86
                   else
                     target_cpu="$TARGET_ARCH"
                   fi
@@ -1312,7 +1357,6 @@ commands:
             - run: rm -rf src/electron
       - *step-restore-brew-cache
       - *step-install-gnutar-on-mac
-      - install-python2-mac
       - *step-save-brew-cache
       - when:
           condition: << parameters.build >>
@@ -1427,7 +1471,7 @@ commands:
             - *step-electron-build
             - *step-maybe-electron-dist-strip
             - step-electron-dist-build:
-                additional-targets: shell_browser_ui_unittests third_party/electron_node:headers third_party/electron_node:overlapped-checker electron:hunspell_dictionaries_zip
+                additional-targets: shell_browser_ui_unittests third_party/electron_node:headers electron:hunspell_dictionaries_zip
 
             - *step-show-goma-stats
 
@@ -1504,7 +1548,6 @@ commands:
             - *step-depot-tools-get
       - *step-depot-tools-add-to-path
       - *step-restore-brew-cache
-      - install-python2-mac
       - *step-get-more-space-on-mac
       - when:
           condition: << parameters.checkout >>
@@ -1564,7 +1607,7 @@ jobs:
       name: linux-docker
       size: medium
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-linux-medium
       <<: *env-testing-build
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
     <<: *steps-electron-ts-compile-for-doc-change
@@ -1701,6 +1744,44 @@ jobs:
                 attach: false
                 checkout: true
 
+  linux-ia32-testing:
+    executor:
+      name: linux-docker
+      size: xlarge
+    environment:
+      <<: *env-global
+      <<: *env-ia32
+      <<: *env-testing-build
+      <<: *env-ninja-status
+      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_arm=True --custom-var=checkout_arm64=True'
+    steps:
+      - electron-build:
+          persist: true
+          checkout: true
+          use-out-cache: false
+
+  linux-ia32-publish:
+    executor:
+      name: linux-docker
+      size: 2xlarge
+    environment:
+      <<: *env-linux-2xlarge-release
+      <<: *env-ia32
+      <<: *env-release-build
+      <<: *env-32bit-release
+      UPLOAD_TO_STORAGE: << pipeline.parameters.upload-to-storage >>
+      <<: *env-ninja-status
+    steps:
+      - run: echo running
+      - when:
+          condition:
+            or:
+              - equal: ["all", << pipeline.parameters.linux-publish-arch-limit >>]
+              - equal: ["ia32", << pipeline.parameters.linux-publish-arch-limit >>]
+          steps:
+            - electron-publish:
+                attach: false
+                checkout: true
 
   linux-arm-testing:
     executor:
@@ -1825,7 +1906,7 @@ jobs:
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
     <<: *steps-electron-gn-check
 
-  osx-publish-x64:
+  osx-publish-x64-skip-checkout:
     executor:
       name: macos
       size: macos.x86.medium.gen2
@@ -1846,7 +1927,7 @@ jobs:
                 attach: true
                 checkout: false
 
-  osx-publish-arm64:
+  osx-publish-arm64-skip-checkout:
     executor:
       name: macos
       size: macos.x86.medium.gen2
@@ -1916,7 +1997,7 @@ jobs:
       GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
     <<: *steps-electron-gn-check
 
-  mas-publish-x64:
+  mas-publish-x64-skip-checkout:
     executor:
       name: macos
       size: macos.x86.medium.gen2
@@ -1937,7 +2018,7 @@ jobs:
                 attach: true
                 checkout: false
 
-  mas-publish-arm64:
+  mas-publish-arm64-skip-checkout:
     executor:
       name: macos
       size: macos.x86.medium.gen2
@@ -2023,6 +2104,61 @@ jobs:
       <<: *env-stack-dumping
     <<: *steps-test-node
 
+  linux-x64-verify-ffmpeg:
+    executor:
+      name: linux-docker
+      size: medium
+    environment:
+      <<: *env-linux-medium
+      <<: *env-headless-testing
+      <<: *env-send-slack-notifications
+    <<: *steps-verify-ffmpeg
+
+  linux-ia32-testing-tests:
+    executor:
+      name: linux-docker
+      size: medium
+    environment:
+      <<: *env-linux-medium
+      <<: *env-ia32
+      <<: *env-headless-testing
+      <<: *env-stack-dumping
+    parallelism: 3
+    <<: *steps-tests
+
+  linux-ia32-testing-nan:
+    executor:
+      name: linux-docker
+      size: medium
+    environment:
+      <<: *env-linux-medium
+      <<: *env-ia32
+      <<: *env-headless-testing
+      <<: *env-stack-dumping
+    <<: *steps-test-nan
+
+  linux-ia32-testing-node:
+    executor:
+      name: linux-docker
+      size: xlarge
+    environment:
+      <<: *env-linux-medium
+      <<: *env-ia32
+      <<: *env-headless-testing
+      <<: *env-stack-dumping
+    <<: *steps-test-node
+
+  linux-ia32-verify-ffmpeg:
+    executor:
+      name: linux-docker
+      size: medium
+    environment:
+      <<: *env-linux-medium
+      <<: *env-ia32
+      <<: *env-headless-testing
+      <<: *env-send-slack-notifications
+    <<: *steps-verify-ffmpeg
+
   linux-arm-testing-tests:
     executor: linux-arm
     environment:
@@ -2079,6 +2215,17 @@ jobs:
       <<: *env-apple-silicon
     <<: *steps-tests
 
+  # Layer 4: Summary.
+  linux-release-summary:
+    executor:
+      name: linux-docker
+      size: medium
+    environment:
+      <<: *env-linux-medium
+      <<: *env-send-slack-notifications
+    steps:
+      - *step-maybe-notify-slack-success
+
 # List all workflows
 workflows:
   docs-only:
@@ -2095,6 +2242,8 @@ workflows:
     jobs:
     - linux-x64-publish:
         context: release-env
+    - linux-ia32-publish:
+        context: release-env
     - linux-arm-publish:
         context: release-env
     - linux-arm64-publish:
@@ -2104,19 +2253,19 @@ workflows:
     when: << pipeline.parameters.run-macos-publish >>
     jobs:
     - mac-checkout
-    - osx-publish-x64:
+    - osx-publish-x64-skip-checkout:
         requires:
           - mac-checkout
         context: release-env
-    - mas-publish-x64:
+    - mas-publish-x64-skip-checkout:
         requires:
           - mac-checkout
         context: release-env
-    - osx-publish-arm64:
+    - osx-publish-arm64-skip-checkout:
         requires:
           - mac-checkout
         context: release-env
-    - mas-publish-arm64:
+    - mas-publish-arm64-skip-checkout:
         requires:
           - mac-checkout
         context: release-env
@@ -2153,6 +2302,18 @@ workflows:
       - linux-x64-testing-node:
           requires:
             - linux-x64-testing
+      - linux-ia32-testing:
+          requires:
+            - linux-make-src-cache
+      - linux-ia32-testing-tests:
+          requires:
+            - linux-ia32-testing
+      - linux-ia32-testing-nan:
+          requires:
+            - linux-ia32-testing
+      - linux-ia32-testing-node:
+          requires:
+            - linux-ia32-testing
       - linux-arm-testing:
           requires:
             - linux-make-src-cache

.eslintrc.json

@@ -1,5 +1,4 @@
 {
-  "root": true,
   "extends": "standard",
   "parser": "@typescript-eslint/parser",
   "plugins": ["@typescript-eslint"],

.git-blame-ignore-revs

@@ -1,5 +0,0 @@
-# Atom --> Electron rename
-d9321f4df751fa32813fab1b6387bbd61bd681d0
-34c4c8d5088fa183f56baea28809de6f2a427e02
-# Enable JS Semicolons
-5d657dece4102e5e5304d42e8004b6ad64c0fcda

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -17,11 +17,8 @@ body:
 - type: input
   attributes:
     label: Electron Version
-    description: |
-      What version of Electron are you using?
-      
-      Note: Please only report issues for [currently supported versions of Electron](https://www.electronjs.org/docs/latest/tutorial/support#currently-supported-versions).
-    placeholder: 17.0.0
+    description: What version of Electron are you using?
+    placeholder: 12.0.0
   validations:
     required: true
 - type: dropdown
@@ -56,7 +53,7 @@ body:
   attributes:
     label: Last Known Working Electron version
     description: What is the last version of Electron this worked in, if applicable?
-    placeholder: 16.0.0
+    placeholder: 11.0.0
 - type: textarea
   attributes:
     label: Expected Behavior

.github/workflows/semantic.yml

@@ -7,14 +7,8 @@ on:
       - edited
       - synchronize
 
-permissions:
-  contents: read
-
 jobs:
   main:
-    permissions:
-      pull-requests: read  # for amannn/action-semantic-pull-request to analyze PRs
-      statuses: write  # for amannn/action-semantic-pull-request to mark status of analyzed PR
     name: Validate PR Title
     runs-on: ubuntu-latest
     steps:

BUILD.gn

@@ -37,7 +37,7 @@ if (is_mac) {
   import("build/rules.gni")
 
   assert(
-      mac_deployment_target == "10.13",
+      mac_deployment_target == "10.11.0",
       "Chromium has updated the mac_deployment_target, please update this assert, update the supported versions documentation (docs/tutorial/support.md) and flag this as a breaking change")
 }
 
@@ -79,13 +79,6 @@ if (is_linux) {
     ]
   }
 
-  # Generates electron_gtk_stubs.h header which contains
-  # stubs for extracting function ptrs from the gtk library.
-  # Function signatures for which stubs are required should be
-  # declared in electron_gtk.sigs, currently this file contains
-  # signatures for the functions used with native file chooser
-  # implementation. In future, this file can be extended to contain
-  # gtk4 stubs to switch gtk version in runtime.
   generate_stubs("electron_gtk_stubs") {
     sigs = [
       "shell/browser/ui/electron_gdk_pixbuf.sigs",
@@ -369,12 +362,10 @@ source_set("electron_lib") {
     "shell/common/api:mojo",
     "//base:base_static",
     "//base/allocator:buildflags",
-    "//chrome:strings",
     "//chrome/app:command_ids",
     "//chrome/app/resources:platform_locale_settings",
     "//components/autofill/core/common:features",
     "//components/certificate_transparency",
-    "//components/embedder_support:browser_util",
     "//components/language/core/browser",
     "//components/net_log",
     "//components/network_hints/browser",
@@ -522,8 +513,6 @@ source_set("electron_lib") {
       "StoreKit.framework",
     ]
 
-    weak_frameworks = [ "QuickLookThumbnailing.framework" ]
-
     sources += [
       "shell/browser/ui/views/autofill_popup_view.cc",
       "shell/browser/ui/views/autofill_popup_view.h",
@@ -565,8 +554,8 @@ source_set("electron_lib") {
       "//ui/base/ime/linux",
       "//ui/events/devices/x11",
       "//ui/events/platform/x11",
+      "//ui/gtk",
       "//ui/views/controls/webview",
-      "//ui/views/linux_ui:linux_ui_factory",
       "//ui/wm",
     ]
     if (ozone_platform_x11) {
@@ -720,7 +709,7 @@ source_set("electron_lib") {
       "//components/pdf/browser:interceptors",
       "//components/pdf/common",
       "//components/pdf/renderer",
-      "//pdf",
+      "//pdf:pdf_ppapi",
     ]
     sources += [
       "shell/browser/electron_pdf_web_contents_helper_client.cc",
@@ -730,6 +719,14 @@ source_set("electron_lib") {
 
   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" ]
   }
@@ -814,11 +811,16 @@ if (is_mac) {
     # Add the SwiftShader .dylibs in the Libraries directory of the Framework.
     bundle_data("electron_swiftshader_binaries") {
       sources = [
+        "$root_out_dir/egl_intermediates/libswiftshader_libEGL.dylib",
+        "$root_out_dir/egl_intermediates/libswiftshader_libGLESv2.dylib",
         "$root_out_dir/vk_intermediates/libvk_swiftshader.dylib",
         "$root_out_dir/vk_intermediates/vk_swiftshader_icd.json",
       ]
       outputs = [ "{{bundle_contents_dir}}/Libraries/{{source_file_part}}" ]
-      public_deps = [ "//ui/gl:swiftshader_vk_library_copy" ]
+      public_deps = [
+        "//ui/gl:swiftshader_egl_library_copy",
+        "//ui/gl:swiftshader_vk_library_copy",
+      ]
     }
   }
   group("electron_angle_library") {
@@ -907,10 +909,7 @@ if (is_mac) {
       assert(defined(invoker.helper_name_suffix))
 
       output_name = electron_helper_name + invoker.helper_name_suffix
-      deps = [
-        ":electron_framework+link",
-        "//base/allocator:early_zone_registration_mac",
-      ]
+      deps = [ ":electron_framework+link" ]
       if (!is_mas_build) {
         deps += [ "//sandbox/mac:seatbelt" ]
       }
@@ -1018,14 +1017,14 @@ if (is_mac) {
   action("electron_app_lproj_dirs") {
     outputs = []
 
-    foreach(locale, locales_as_apple_outputs) {
+    foreach(locale, locales_as_mac_outputs) {
       outputs += [ "$target_gen_dir/app_infoplist_strings/$locale.lproj" ]
     }
     script = "build/mac/make_locale_dirs.py"
     args = rebase_path(outputs)
   }
 
-  foreach(locale, locales_as_apple_outputs) {
+  foreach(locale, locales_as_mac_outputs) {
     bundle_data("electron_app_strings_${locale}_bundle_data") {
       sources = [ "$target_gen_dir/app_infoplist_strings/$locale.lproj" ]
       outputs = [ "{{bundle_resources_dir}}/$locale.lproj" ]
@@ -1034,7 +1033,7 @@ if (is_mac) {
   }
   group("electron_app_strings_bundle_data") {
     public_deps = []
-    foreach(locale, locales_as_apple_outputs) {
+    foreach(locale, locales_as_mac_outputs) {
       public_deps += [ ":electron_app_strings_${locale}_bundle_data" ]
     }
   }
@@ -1070,7 +1069,6 @@ if (is_mac) {
       ":electron_app_plist",
       ":electron_app_resources",
       ":electron_fuses",
-      "//base/allocator:early_zone_registration_mac",
       "//electron/buildflags",
     ]
     if (is_mas_build) {
@@ -1114,18 +1112,21 @@ if (is_mac) {
       deps = [ ":electron_app" ]
     }
 
-    extract_symbols("egl_syms") {
-      binary = "$root_out_dir/libEGL.dylib"
+    extract_symbols("swiftshader_egl_syms") {
+      binary = "$root_out_dir/libswiftshader_libEGL.dylib"
       symbol_dir = "$root_out_dir/breakpad_symbols"
-      dsym_file = "$root_out_dir/libEGL.dylib.dSYM/Contents/Resources/DWARF/libEGL.dylib"
-      deps = [ "//third_party/angle:libEGL" ]
+      dsym_file = "$root_out_dir/libswiftshader_libEGL.dylib.dSYM/Contents/Resources/DWARF/libswiftshader_libEGL.dylib"
+      deps =
+          [ "//third_party/swiftshader/src/OpenGL/libEGL:swiftshader_libEGL" ]
     }
 
-    extract_symbols("gles_syms") {
-      binary = "$root_out_dir/libGLESv2.dylib"
+    extract_symbols("swiftshader_gles_syms") {
+      binary = "$root_out_dir/libswiftshader_libGLESv2.dylib"
       symbol_dir = "$root_out_dir/breakpad_symbols"
-      dsym_file = "$root_out_dir/libGLESv2.dylib.dSYM/Contents/Resources/DWARF/libGLESv2.dylib"
-      deps = [ "//third_party/angle:libGLESv2" ]
+      dsym_file = "$root_out_dir/libswiftshader_libGLESv2.dylib.dSYM/Contents/Resources/DWARF/libswiftshader_libGLESv2.dylib"
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libGLESv2:swiftshader_libGLESv2",
+      ]
     }
 
     extract_symbols("crashpad_handler_syms") {
@@ -1137,10 +1138,10 @@ if (is_mac) {
 
     group("electron_symbols") {
       deps = [
-        ":egl_syms",
         ":electron_app_syms",
         ":electron_framework_syms",
-        ":gles_syms",
+        ":swiftshader_egl_syms",
+        ":swiftshader_gles_syms",
       ]
 
       if (!is_mas_build) {
@@ -1299,23 +1300,27 @@ if (is_mac) {
       deps = [ ":electron_app" ]
     }
 
-    extract_symbols("egl_symbols") {
-      binary = "$root_out_dir/libEGL$_target_shared_library_suffix"
+    extract_symbols("swiftshader_egl_symbols") {
+      binary = "$root_out_dir/swiftshader/libEGL$_target_shared_library_suffix"
       symbol_dir = "$root_out_dir/breakpad_symbols"
-      deps = [ "//third_party/angle:libEGL" ]
+      deps =
+          [ "//third_party/swiftshader/src/OpenGL/libEGL:swiftshader_libEGL" ]
     }
 
-    extract_symbols("gles_symbols") {
-      binary = "$root_out_dir/libGLESv2$_target_shared_library_suffix"
+    extract_symbols("swiftshader_gles_symbols") {
+      binary =
+          "$root_out_dir/swiftshader/libGLESv2$_target_shared_library_suffix"
       symbol_dir = "$root_out_dir/breakpad_symbols"
-      deps = [ "//third_party/angle:libGLESv2" ]
+      deps = [
+        "//third_party/swiftshader/src/OpenGL/libGLESv2:swiftshader_libGLESv2",
+      ]
     }
 
     group("electron_symbols") {
       deps = [
-        ":egl_symbols",
         ":electron_app_symbols",
-        ":gles_symbols",
+        ":swiftshader_egl_symbols",
+        ":swiftshader_gles_symbols",
       ]
     }
   }

DEPS

@@ -1,12 +1,28 @@
-gclient_gn_args_from = 'src'
+gclient_gn_args_file = 'src/build/config/gclient_args.gni'
+gclient_gn_args = [
+  'build_with_chromium',
+  'checkout_android',
+  'checkout_android_native_support',
+  'checkout_libaom',
+  'checkout_nacl',
+  'checkout_pgo_profiles',
+  'checkout_oculus_sdk',
+  'checkout_openxr',
+  'checkout_google_benchmark',
+  'mac_xcode_version',
+  'generate_location_tags',
+]
 
 vars = {
   'chromium_version':
-    '104.0.5073.0',
+    '100.0.4896.160',
   'node_version':
-    'v16.15.0',
+    'v16.13.2',
   'nan_version':
-    '16fa32231e2ccd89d2804b3f765319128b20c4ac',
+    # The following commit hash of NAN is v2.14.2 with *only* changes to the
+    # test suite. This should be updated to a specific tag when one becomes
+    # available.
+    '65b32af46e9d7fab2e4ff657751205b3865f4920',
   'squirrel.mac_version':
     '0e5d146ba13101a1302d59ea6e6e0b3cace4ae38',
 

ELECTRON_VERSION

@@ -1 +1 @@
-20.0.0-beta.4
+18.3.5

README.md

@@ -34,17 +34,6 @@ For more installation options and troubleshooting tips, see
 [installation](docs/tutorial/installation.md). For info on how to manage Electron versions in your apps, see
 [Electron versioning](docs/tutorial/electron-versioning.md).
 
-## Platform support
-
-Each Electron release provides binaries for macOS, Windows, and Linux.
-
-* macOS (El Capitan and up): Electron provides 64-bit Intel and ARM binaries for macOS. Apple Silicon support was added in Electron 11.
-* Windows (Windows 7 and up): Electron provides `ia32` (`x86`), `x64` (`amd64`), and `arm64` binaries for Windows. Windows on ARM support was added in Electron 5.0.8.
-* Linux: The prebuilt binaries of Electron are built on Ubuntu 20.04. They have also been verified to work on:
-  * Ubuntu 14.04 and newer
-  * Fedora 24 and newer
-  * Debian 8 and newer
-
 ## Quick start & Electron Fiddle
 
 Use [`Electron Fiddle`](https://github.com/electron/fiddle)
@@ -65,10 +54,12 @@ npm start
 
 ## Resources for learning Electron
 
-* [electronjs.org/docs](https://electronjs.org/docs) - All of Electron's documentation
-* [electron/fiddle](https://github.com/electron/fiddle) - A tool to build, run, and package small Electron experiments
-* [electron/electron-quick-start](https://github.com/electron/electron-quick-start) - A very basic starter Electron app
-* [electronjs.org/community#boilerplates](https://electronjs.org/community#boilerplates) - Sample starter apps created by the community
+- [electronjs.org/docs](https://electronjs.org/docs) - All of Electron's documentation
+- [electron/fiddle](https://github.com/electron/fiddle) - A tool to build, run, and package small Electron experiments
+- [electron/electron-quick-start](https://github.com/electron/electron-quick-start) - A very basic starter Electron app
+- [electronjs.org/community#boilerplates](https://electronjs.org/community#boilerplates) - Sample starter apps created by the community
+- [electron/simple-samples](https://github.com/electron/simple-samples) - Small applications with ideas for taking them further
+- [electron/electron-api-demos](https://github.com/electron/electron-api-demos) - An Electron app that teaches you how to use Electron
 
 ## Programmatic usage
 
@@ -89,15 +80,11 @@ const child = proc.spawn(electron)
 
 ### Mirrors
 
-* [China](https://npmmirror.com/mirrors/electron/)
+- [China](https://npmmirror.com/mirrors/electron)
 
-See the [Advanced Installation Instructions](https://www.electronjs.org/docs/latest/tutorial/installation#mirror) to learn how to use a custom mirror.
+## Documentation Translations
 
-## Documentation translations
-
-We crowdsource translations for our documentation via [Crowdin](https://crowdin.com/project/electron).
-We currently accept translations for Chinese (Simplified), French, German, Japanese, Portuguese,
-Russian, and Spanish.
+Find documentation translations in [electron/i18n](https://github.com/electron/i18n).
 
 ## Contributing
 
@@ -106,10 +93,10 @@ If you are interested in reporting/fixing issues and contributing directly to th
 ## Community
 
 Info on reporting bugs, getting help, finding third-party tools and sample apps,
-and more can be found on the [Community page](https://www.electronjs.org/community).
+and more can be found in the [support document](docs/tutorial/support.md#finding-support).
 
 ## License
 
 [MIT](https://github.com/electron/electron/blob/main/LICENSE)
 
-When using Electron logos, make sure to follow [OpenJS Foundation Trademark Policy](https://openjsf.org/wp-content/uploads/sites/84/2021/01/OpenJS-Foundation-Trademark-Policy-2021-01-12.docx.pdf).
+When using the Electron or other GitHub logos, be sure to follow the [GitHub logo guidelines](https://github.com/logos).

appveyor.yml

@@ -23,9 +23,13 @@
 # https://www.appveyor.com/docs/build-configuration/#secure-variables
 # https://www.appveyor.com/docs/build-configuration/#custom-environment-variables
 
+# Uncomment these lines to enable RDP
+#on_finish:
+#  - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
+
 version: 1.0.{build}
 build_cloud: electron-16-core
-image: vs2019bt-16.16.11
+image: vs2019bt-16.6.2
 environment:
   GIT_CACHE_PATH: C:\Users\electron\libcc_cache
   ELECTRON_OUT_DIR: Default
@@ -34,6 +38,16 @@ environment:
   MOCHA_REPORTER: mocha-multi-reporters
   MOCHA_MULTI_REPORTERS: mocha-appveyor-reporter, tap
   GOMA_FALLBACK_ON_AUTH_FAILURE: true
+notifications:
+  - provider: Webhook
+    url: https://electron-mission-control.herokuapp.com/rest/appveyor-hook
+    method: POST
+    headers:
+      x-mission-control-secret:
+        secure: 90BLVPcqhJPG7d24v0q/RRray6W3wDQ8uVQlQjOHaBWkw1i8FoA1lsjr2C/v1dVok+tS2Pi6KxDctPUkwIb4T27u4RhvmcPzQhVpfwVJAG9oNtq+yKN7vzHfg7k/pojEzVdJpQLzeJGcSrZu7VY39Q==
+    on_build_success: false
+    on_build_failure: true
+    on_build_status_changed: false
 build_script:
   - ps: >-
       if(($env:APPVEYOR_PULL_REQUEST_HEAD_REPO_NAME -split "/")[0] -eq ($env:APPVEYOR_REPO_NAME -split "/")[0]) {
@@ -140,12 +154,6 @@ build_script:
         if ($LASTEXITCODE -ne 0) {
           Write-warning "Failed to add third_party\angle\.git; continuing anyway"
         }
-        # build time generation of file dawn/common/Version_autogen.h depends on third_party/dawn/.git/HEAD
-        # https://dawn-review.googlesource.com/c/dawn/+/83901        
-        $(7z a $zipfile src\third_party\dawn\.git)
-        if ($LASTEXITCODE -ne 0) {
-          Write-warning "Failed to add third_party\dawn\.git; continuing anyway"
-        }
       }
   - cd src
   - set BUILD_CONFIG_PATH=//electron/build/args/%GN_CONFIG%.gn 
@@ -168,25 +176,32 @@ build_script:
   - ninja -C out/Default electron:electron_chromedriver_zip
   - ninja -C out/Default third_party/electron_node:headers
   - python %LOCAL_GOMA_DIR%\goma_ctl.py stat
-  - python3 electron/build/profile_toolchain.py --output-json=out/Default/windows_toolchain_profile.json
+  - python electron/build/profile_toolchain.py --output-json=out/Default/windows_toolchain_profile.json
+  - appveyor PushArtifact out/Default/windows_toolchain_profile.json
+  - appveyor PushArtifact out/Default/dist.zip
+  - appveyor PushArtifact out/Default/shell_browser_ui_unittests.exe
+  - appveyor PushArtifact out/Default/chromedriver.zip
+  - appveyor PushArtifact out/ffmpeg/ffmpeg.zip
   - 7z a node_headers.zip out\Default\gen\node_headers
-  # Temporarily disable symbol generation on 32-bit Windows due to failures  
+  - appveyor PushArtifact node_headers.zip
+  - appveyor PushArtifact out/Default/mksnapshot.zip
+  - appveyor PushArtifact out/Default/hunspell_dictionaries.zip
+  - appveyor PushArtifact out/Default/electron.lib
   - ps: >-
-      if ($env:GN_CONFIG -eq 'release' -And $env:TARGET_ARCH -ne 'ia32') {
+      if ($env:GN_CONFIG -eq 'release') {
         # Needed for msdia140.dll on 64-bit windows
         $env:Path += ";$pwd\third_party\llvm-build\Release+Asserts\bin"
         ninja -C out/Default electron:electron_symbols
       }
   - ps: >-
       if ($env:GN_CONFIG -eq 'release') {
-        if ($env:TARGET_ARCH -ne 'ia32') {
-          python electron\script\zip-symbols.py
-          appveyor-retry appveyor PushArtifact out/Default/symbols.zip
-        }
+        python electron\script\zip-symbols.py
+        appveyor-retry appveyor PushArtifact out/Default/symbols.zip
       } else {
         # It's useful to have pdb files when debugging testing builds that are
         # built on CI.
         7z a pdb.zip out\Default\*.pdb
+        appveyor-retry appveyor PushArtifact pdb.zip
       }
   - python electron/script/zip_manifests/check-zip-manifest.py out/Default/dist.zip electron/script/zip_manifests/dist_zip.win.%TARGET_ARCH%.manifest
 test_script:
@@ -215,6 +230,7 @@ test_script:
   - echo "Done verifying mksnapshot"
   - if "%RUN_TESTS%"=="true" ( echo Verifying chromedriver & python electron\script\verify-chromedriver.py --build-dir out\Default --source-root %cd% )
   - echo "Done verifying chromedriver"
+  - if exist %cd%\electron.log ( appveyor-retry appveyor PushArtifact %cd%\electron.log )
 deploy_script:
   - cd electron
   - ps: >-
@@ -230,21 +246,4 @@ deploy_script:
         node script/release/ci-release-build.js --job=electron-woa-testing --ci=VSTS --armTest --appveyorJobId=$env:APPVEYOR_JOB_ID $env:APPVEYOR_REPO_BRANCH
       }
 on_finish:
-  # Uncomment this lines to enable RDP
-  #- ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
-  - cd ..
-  - if exist out\Default\windows_toolchain_profile.json ( appveyor-retry appveyor PushArtifact out\Default\windows_toolchain_profile.json )
-  - if exist out\Default\dist.zip (appveyor-retry appveyor PushArtifact out\Default\dist.zip)
-  - if exist out\Default\shell_browser_ui_unittests.exe (appveyor-retry appveyor PushArtifact out\Default\shell_browser_ui_unittests.exe)
-  - if exist out\Default\chromedriver.zip (appveyor-retry appveyor PushArtifact out\Default\chromedriver.zip)
-  - if exist out\ffmpeg\ffmpeg.zip (appveyor-retry appveyor PushArtifact out\ffmpeg\ffmpeg.zip)
-  - if exist node_headers.zip (appveyor-retry appveyor PushArtifact node_headers.zip)
-  - if exist out\Default\mksnapshot.zip (appveyor-retry appveyor PushArtifact out\Default\mksnapshot.zip)
-  - if exist out\Default\hunspell_dictionaries.zip (appveyor-retry appveyor PushArtifact out\Default\hunspell_dictionaries.zip)
-  - if exist out\Default\electron.lib (appveyor-retry appveyor PushArtifact out\Default\electron.lib)
-  - ps: >-
-      if ((Test-Path "pdb.zip") -And ($env:GN_CONFIG -ne 'release')) {
-        appveyor-retry appveyor PushArtifact pdb.zip
-      }
-
-  - if exist electron\electron.log ( appveyor-retry appveyor PushArtifact electron\electron.log )
+  - if exist src\electron\electron.log ( appveyor-retry appveyor PushArtifact src\electron\electron.log )

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 = 107
+node_module_version = 103
 
 v8_promise_internal_field_count = 1
 v8_embedder_string = "-electron.0"
@@ -27,23 +27,17 @@ 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
 
-# CET shadow stack is incompatible with v8, until v8 is CET compliant
-# enabling this flag causes main process crashes where CET is enabled
-# Ref: https://source.chromium.org/chromium/chromium/src/+/45fba672185aae233e75d6ddc81ea1e0b30db050:v8/BUILD.gn;l=357
 enable_cet_shadow_stack = false
-
-# For similar reasons, disable CFI, which is not well supported in V8.
-# Chromium doesn't have any problems with this because they do not run
-# V8 in the browser process.
-# Ref: https://source.chromium.org/chromium/chromium/src/+/45fba672185aae233e75d6ddc81ea1e0b30db050:v8/BUILD.gn;l=281
-is_cfi = false
-
-v8_enable_sandboxed_pointers = false

buildflags/BUILD.gn

@@ -19,6 +19,7 @@ buildflag_header("buildflags") {
     "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

@@ -31,4 +31,7 @@ declare_args() {
 
   # Enable Spellchecker support
   enable_builtin_spellchecker = true
+
+  # Undocumented Windows dark mode API
+  enable_win_dark_mode_window_ui = false
 }

chromium_src/BUILD.gn

@@ -69,7 +69,6 @@ static_library("chrome") {
     "//chrome/browser/ui/exclusive_access/keyboard_lock_controller.h",
     "//chrome/browser/ui/exclusive_access/mouse_lock_controller.cc",
     "//chrome/browser/ui/exclusive_access/mouse_lock_controller.h",
-    "//chrome/browser/ui/native_window_tracker.h",
     "//chrome/browser/ui/views/eye_dropper/eye_dropper.cc",
     "//chrome/browser/ui/views/eye_dropper/eye_dropper.h",
     "//chrome/browser/ui/views/eye_dropper/eye_dropper_view.cc",
@@ -89,8 +88,6 @@ static_library("chrome") {
       "//chrome/browser/icon_loader_mac.mm",
       "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.h",
       "//chrome/browser/media/webrtc/system_media_capture_permissions_mac.mm",
-      "//chrome/browser/media/webrtc/system_media_capture_permissions_stats_mac.h",
-      "//chrome/browser/media/webrtc/system_media_capture_permissions_stats_mac.mm",
       "//chrome/browser/media/webrtc/window_icon_util_mac.mm",
       "//chrome/browser/process_singleton_mac.mm",
       "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_mac.h",
@@ -122,8 +119,6 @@ static_library("chrome") {
   if (use_aura) {
     sources += [
       "//chrome/browser/platform_util_aura.cc",
-      "//chrome/browser/ui/aura/native_window_tracker_aura.cc",
-      "//chrome/browser/ui/aura/native_window_tracker_aura.h",
       "//chrome/browser/ui/views/eye_dropper/eye_dropper_view_aura.cc",
     ]
   }
@@ -311,6 +306,8 @@ static_library("chrome") {
         "//chrome/browser/pdf/pdf_frame_util.h",
         "//chrome/browser/plugins/pdf_iframe_navigation_throttle.cc",
         "//chrome/browser/plugins/pdf_iframe_navigation_throttle.h",
+        "//chrome/renderer/pepper/chrome_pdf_print_client.cc",
+        "//chrome/renderer/pepper/chrome_pdf_print_client.h",
       ]
       deps += [
         "//components/pdf/browser",
@@ -348,6 +345,8 @@ source_set("plugins") {
   sources += [
     "//chrome/renderer/pepper/chrome_renderer_pepper_host_factory.cc",
     "//chrome/renderer/pepper/chrome_renderer_pepper_host_factory.h",
+    "//chrome/renderer/pepper/pepper_flash_font_file_host.cc",
+    "//chrome/renderer/pepper/pepper_flash_font_file_host.h",
     "//chrome/renderer/pepper/pepper_shared_memory_message_filter.cc",
     "//chrome/renderer/pepper/pepper_shared_memory_message_filter.h",
   ]

default_app/default_app.ts

@@ -66,9 +66,9 @@ async function createWindow (backgroundColor?: string) {
   mainWindow = new BrowserWindow(options);
   mainWindow.on('ready-to-show', () => mainWindow!.show());
 
-  mainWindow.webContents.setWindowOpenHandler(details => {
-    shell.openExternal(decorateURL(details.url));
-    return { action: 'deny' };
+  mainWindow.webContents.on('new-window', (event, url) => {
+    event.preventDefault();
+    shell.openExternal(decorateURL(url));
   });
 
   mainWindow.webContents.session.setPermissionRequestHandler((webContents, permission, done) => {

docs/README.md

@@ -64,6 +64,7 @@ an issue:
   * [Automated Testing](tutorial/automated-testing.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)

docs/api/app.md

@@ -582,10 +582,6 @@ You should seek to use the `steal` option as sparingly as possible.
 
 Hides all application windows without minimizing them.
 
-### `app.isHidden()` _macOS_
-
-Returns `boolean` - `true` if the application—including all of its windows—is hidden (e.g. with `Command-H`), `false` otherwise.
-
 ### `app.show()` _macOS_
 
 Shows application windows after they were hidden. Does not automatically focus
@@ -611,18 +607,9 @@ Returns `string` - The current application directory.
     * `%APPDATA%` on Windows
     * `$XDG_CONFIG_HOME` or `~/.config` on Linux
     * `~/Library/Application Support` on macOS
-  * `userData` The directory for storing your app's configuration files, which
-    by default is the `appData` directory appended with your app's name. By
-    convention files storing user data should be written to this directory, and
-    it is not recommended to write large files here because some environments
-    may backup this directory to cloud storage.
-  * `sessionData` The directory for storing data generated by `Session`, such
-    as localStorage, cookies, disk cache, downloaded dictionaries, network
-    state, devtools files. By default this points to `userData`. Chromium may
-    write very large disk cache here, so if your app does not rely on browser
-    storage like localStorage or cookies to save user data, it is recommended
-    to set this directory to other locations to avoid polluting the `userData`
-    directory.
+  * `userData` The directory for storing your app's configuration files, which by
+    default it is the `appData` directory appended with your app's name.
+  * `cache`
   * `temp` Temporary directory.
   * `exe` The current executable file.
   * `module` The `libchromiumcontent` library.
@@ -672,9 +659,9 @@ In that case, the directory should be created with `fs.mkdirSync` or similar.
 
 You can only override paths of a `name` defined in `app.getPath`.
 
-By default, web pages' cookies and caches will be stored under the `sessionData`
+By default, web pages' cookies and caches will be stored under the `userData`
 directory. If you want to change this location, you have to override the
-`sessionData` path before the `ready` event of the `app` module is emitted.
+`userData` path before the `ready` event of the `app` module is emitted.
 
 ### `app.getVersion()`
 
@@ -703,7 +690,7 @@ Overrides the current application's name.
 ### `app.getLocale()`
 
 Returns `string` - The current application locale, fetched using Chromium's `l10n_util` library.
-Possible return values are documented [here](https://source.chromium.org/chromium/chromium/src/+/main:ui/base/l10n/l10n_util.cc).
+Possible return values are documented [here](https://source.chromium.org/chromium/chromium/src/+/master:ui/base/l10n/l10n_util.cc).
 
 To set the locale, you'll want to use a command line switch at app startup, which may be found [here](command-line-switches.md).
 
@@ -1072,7 +1059,7 @@ 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://source.chromium.org/chromium/chromium/src/+/main: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.configureHostResolver(options)`
 

docs/api/browser-view.md

@@ -11,9 +11,6 @@ relative to its owning window. It is meant to be an alternative to the
 
 Process: [Main](../glossary.md#main-process)
 
-This module cannot be used until the `ready` event of the `app`
-module is emitted.
-
 ### Example
 
 ```javascript

docs/api/browser-window.md

@@ -4,9 +4,6 @@
 
 Process: [Main](../glossary.md#main-process)
 
-This module cannot be used until the `ready` event of the `app`
-module is emitted.
-
 ```javascript
 // In the main process.
 const { BrowserWindow } = require('electron')
@@ -67,7 +64,7 @@ win.loadURL('https://github.com')
 ```
 
 Note that even for apps that use `ready-to-show` event, it is still recommended
-to set `backgroundColor` to make the app feel more native.
+to set `backgroundColor` to make app feel more native.
 
 Some examples of valid `backgroundColor` values include:
 
@@ -161,20 +158,20 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
   * `useContentSize` boolean (optional) - The `width` and `height` would be used as web
     page's size, which means the actual window's size will include window
     frame's size and be slightly larger. Default is `false`.
-  * `center` boolean (optional) - Show window in the center of the screen. Default is `false`.
+  * `center` boolean (optional) - Show window in the center of the screen.
   * `minWidth` Integer (optional) - Window's minimum width. Default is `0`.
   * `minHeight` Integer (optional) - Window's minimum height. Default is `0`.
   * `maxWidth` Integer (optional) - Window's maximum width. Default is no limit.
   * `maxHeight` Integer (optional) - Window's maximum height. Default is no limit.
   * `resizable` boolean (optional) - Whether window is resizable. Default is `true`.
-  * `movable` boolean (optional) _macOS_ _Windows_ - Whether window is
-    movable. This is not implemented on Linux. Default is `true`.
-  * `minimizable` boolean (optional) _macOS_ _Windows_ - Whether window is
-    minimizable. This is not implemented on Linux. Default is `true`.
-  * `maximizable` boolean (optional) _macOS_ _Windows_ - Whether window is
-    maximizable. This is not implemented on Linux. Default is `true`.
-  * `closable` boolean (optional) _macOS_ _Windows_ - Whether window is
-    closable. This is not implemented on Linux. Default is `true`.
+  * `movable` boolean (optional) - Whether window is movable. This is not implemented
+    on Linux. Default is `true`.
+  * `minimizable` boolean (optional) - Whether window is minimizable. This is not
+    implemented on Linux. Default is `true`.
+  * `maximizable` boolean (optional) - Whether window is maximizable. This is not
+    implemented on Linux. Default is `true`.
+  * `closable` boolean (optional) - Whether window is closable. This is not implemented
+    on Linux. Default is `true`.
   * `focusable` boolean (optional) - Whether the window can be focused. Default is
     `true`. On Windows setting `focusable: false` also implies setting
     `skipTaskbar: true`. On Linux setting `focusable: false` makes the window
@@ -188,10 +185,9 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
   * `fullscreenable` boolean (optional) - Whether the window can be put into fullscreen
     mode. On macOS, also whether the maximize/zoom button should toggle full
     screen mode or maximize window. Default is `true`.
-  * `simpleFullscreen` boolean (optional) _macOS_ - Use pre-Lion fullscreen on
-    macOS. Default is `false`.
-  * `skipTaskbar` boolean (optional) _macOS_ _Windows_ - Whether to show the window in taskbar.
-    Default is `false`.
+  * `simpleFullscreen` boolean (optional) - Use pre-Lion fullscreen on macOS. Default is `false`.
+  * `skipTaskbar` boolean (optional) - Whether to show the window in taskbar. Default is
+    `false`.
   * `kiosk` boolean (optional) - Whether the window is in kiosk mode. Default is `false`.
   * `title` string (optional) - Default window title. Default is `"Electron"`. If the HTML tag `<title>` is defined in the HTML file loaded by `loadURL()`, this property will be ignored.
   * `icon` ([NativeImage](native-image.md) | string) (optional) - The window icon. On Windows it is
@@ -205,30 +201,27 @@ 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) _macOS_ - 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.
+  * `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`
     key is pressed. Default is `false`.
-  * `enableLargerThanScreen` boolean (optional) _macOS_ - Enable the window to
-    be resized larger than screen. Only relevant for macOS, as other OSes
-    allow larger-than-screen windows by default. Default is `false`.
+  * `enableLargerThanScreen` boolean (optional) - Enable the window to be resized larger
+    than screen. Only relevant for macOS, as other OSes allow
+    larger-than-screen windows by default. Default is `false`.
   * `backgroundColor` string (optional) - The window's background color in Hex, RGB, RGBA, HSL, HSLA or named CSS color format. Alpha in #AARRGGBB format is supported if `transparent` is set to `true`. Default is `#FFF` (white). See [win.setBackgroundColor](browser-window.md#winsetbackgroundcolorbackgroundcolor) for more information.
   * `hasShadow` boolean (optional) - Whether window should have a shadow. Default is `true`.
-  * `opacity` number (optional) _macOS_ _Windows_ - Set the initial opacity of
-    the window, between 0.0 (fully transparent) and 1.0 (fully opaque). This
-    is only implemented on Windows and macOS.
+  * `opacity` number (optional) - Set the initial opacity of the window, between 0.0 (fully
+    transparent) and 1.0 (fully opaque). This is only implemented on Windows and macOS.
   * `darkTheme` boolean (optional) - Forces using dark theme for the window, only works on
     some GTK+3 desktop environments. Default is `false`.
   * `transparent` boolean (optional) - Makes the window [transparent](../tutorial/window-customization.md#create-transparent-windows).
     Default is `false`. On Windows, does not work unless the window is frameless.
   * `type` string (optional) - The type of window, default is normal window. See more about
     this below.
-  * `visualEffectState` string (optional) _macOS_ - Specify how the material
-    appearance should reflect window activity state on macOS. Must be used
-    with the `vibrancy` property. Possible values are:
+  * `visualEffectState` string (optional) - Specify how the material appearance should reflect window activity state on macOS. Must be used with the `vibrancy` property. Possible values are:
     * `followWindow` - The backdrop should automatically appear active when the window is active, and inactive when it is not. This is the default.
     * `active` - The backdrop should always appear active.
     * `inactive` - The backdrop should always appear inactive.
@@ -236,41 +229,36 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
     Default is `default`. Possible values are:
     * `default` - Results in the standard title bar for macOS or Windows respectively.
     * `hidden` - Results in a hidden title bar and a full size content window. On macOS, the window still has the standard window controls (“traffic lights”) in the top left. On Windows, when combined with `titleBarOverlay: true` it will activate the Window Controls Overlay (see `titleBarOverlay` for more information), otherwise no window controls will be shown.
-    * `hiddenInset` _macOS_ - Only on macOS, results in a hidden title bar
-      with an alternative look where the traffic light buttons are slightly
-      more inset from the window edge.
-    * `customButtonsOnHover` _macOS_ - Only on macOS, 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) _macOS_ -
-    Set a custom position for the traffic light buttons in frameless windows.
-  * `roundedCorners` boolean (optional) _macOS_ - Whether frameless window
-    should have rounded corners on macOS. Default is `true`.
-  * `fullscreenWindowTitle` boolean (optional) _macOS_ _Deprecated_ - Shows
-    the title in the title bar in full screen mode on macOS for `hiddenInset`
-    titleBarStyle. Default is `false`.
+    * `hiddenInset` - Only on macOS, results in a hidden title bar with an alternative look
+      where the traffic light buttons are slightly more inset from the window edge.
+    * `customButtonsOnHover` - Only on macOS, 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) _macOS_ - 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
-    `appearance-based`, `light`, `dark`, `medium-light`, and `ultra-dark` are
-    deprecated and have been removed in macOS Catalina (10.15).
-  * `zoomToPageWidth` boolean (optional) _macOS_ - 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 width of the web page when zoomed, `false` will cause it to
-    zoom to the width of the screen. This will also affect the behavior when
-    calling `maximize()` directly. Default is `false`.
-  * `tabbingIdentifier` string (optional) _macOS_ - Tab group name, allows
-    opening the window as a native tab on macOS 10.12+. Windows with the same
-    tabbing identifier will be grouped together. This also adds a native new
-    tab button to your window's tab bar and allows your `app` and window to
-    receive the `new-window-for-tab` event.
+  * `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 `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
+    width of the web page when zoomed, `false` will cause it to zoom to the
+    width of the screen. This will also affect the behavior when calling
+    `maximize()` directly. Default is `false`.
+  * `tabbingIdentifier` string (optional) - Tab group name, allows opening the
+    window as a native tab on macOS 10.12+. Windows with the same tabbing
+    identifier will be grouped together. This also adds a native new tab button
+    to your window's tab bar and allows your `app` and window to receive the
+    `new-window-for-tab` event.
   * `webPreferences` Object (optional) - Settings of web page's features.
     * `devTools` boolean (optional) - Whether to enable DevTools. If it is set to `false`, can not use `BrowserWindow.webContents.openDevTools()` to open DevTools. Default is `true`.
     * `nodeIntegration` boolean (optional) - Whether node integration is enabled.
@@ -322,8 +310,8 @@ It creates a new `BrowserWindow` with native properties as set by the `options`.
     * `plugins` boolean (optional) - Whether plugins should be enabled. Default is `false`.
     * `experimentalFeatures` boolean (optional) - Enables Chromium's experimental features.
       Default is `false`.
-    * `scrollBounce` boolean (optional) _macOS_ - Enables scroll bounce
-      (rubber banding) effect on macOS. Default is `false`.
+    * `scrollBounce` boolean (optional) - Enables scroll bounce (rubber banding) effect on
+      macOS. Default is `false`.
     * `enableBlinkFeatures` string (optional) - A list of feature strings separated by `,`, like
       `CSSVariables,KeyboardEventKey` to enable. The full list of supported feature
       strings can be found in the [RuntimeEnabledFeatures.json5][runtime-enabled-features]
@@ -425,17 +413,13 @@ Possible values are:
 
 * On Linux, possible types are `desktop`, `dock`, `toolbar`, `splash`,
   `notification`.
-* On macOS, possible types are `desktop`, `textured`, `panel`.
+* On macOS, possible types are `desktop`, `textured`.
   * The `textured` type adds metal gradient appearance
-    (`NSWindowStyleMaskTexturedBackground`).
+    (`NSTexturedBackgroundWindowMask`).
   * The `desktop` type places the window at the desktop background window level
     (`kCGDesktopWindowLevel - 1`). Note that desktop window will not receive
     focus, keyboard or mouse events, but you can use `globalShortcut` to receive
     input sparingly.
-  * The `panel` type enables the window to float on top of full-screened apps
-    by adding the `NSWindowStyleMaskNonactivatingPanel` style mask,normally
-    reserved for NSPanel, at runtime. Also, the window will appear on all
-    spaces (desktops).
 * On Windows, possible type is `toolbar`.
 
 ### Instance Events
@@ -790,7 +774,7 @@ A `boolean` property that determines whether the window is in fullscreen mode.
 
 A `boolean` property that determines whether the window is focusable.
 
-#### `win.visibleOnAllWorkspaces` _macOS_ _Linux_
+#### `win.visibleOnAllWorkspaces`
 
 A `boolean` property that determines whether the window is visible on all workspaces.
 
@@ -827,13 +811,13 @@ A `string` property that determines the title of the native window.
 
 **Note:** The title of the web page can be different from the title of the native window.
 
-#### `win.minimizable` _macOS_ _Windows_
+#### `win.minimizable`
 
 A `boolean` property that determines whether the window can be manually minimized by user.
 
 On Linux the setter is a no-op, although the getter returns `true`.
 
-#### `win.maximizable` _macOS_ _Windows_
+#### `win.maximizable`
 
 A `boolean` property that determines whether the window can be manually maximized by user.
 
@@ -848,13 +832,13 @@ maximizes the window.
 
 A `boolean` property that determines whether the window can be manually resized by user.
 
-#### `win.closable` _macOS_ _Windows_
+#### `win.closable`
 
 A `boolean` property that determines whether the window can be manually closed by user.
 
 On Linux the setter is a no-op, although the getter returns `true`.
 
-#### `win.movable` _macOS_ _Windows_
+#### `win.movable`
 
 A `boolean` property that determines Whether the window can be moved by user.
 
@@ -1651,7 +1635,7 @@ Changes window icon.
 
 Sets whether the window traffic light buttons should be visible.
 
-#### `win.setAutoHideMenuBar(hide)` _Windows_ _Linux_
+#### `win.setAutoHideMenuBar(hide)`
 
 * `hide` boolean
 
@@ -1660,7 +1644,7 @@ menu bar will only show when users press the single `Alt` key.
 
 If the menu bar is already visible, calling `setAutoHideMenuBar(true)` won't hide it immediately.
 
-#### `win.isMenuBarAutoHide()` _Windows_ _Linux_
+#### `win.isMenuBarAutoHide()`
 
 Returns `boolean` - Whether menu bar automatically hides itself.
 
@@ -1670,11 +1654,11 @@ Returns `boolean` - Whether menu bar automatically hides itself.
 
 Sets whether the menu bar should be visible. If the menu bar is auto-hide, users can still bring up the menu bar by pressing the single `Alt` key.
 
-#### `win.isMenuBarVisible()` _Windows_ _Linux_
+#### `win.isMenuBarVisible()`
 
 Returns `boolean` - Whether the menu bar is visible.
 
-#### `win.setVisibleOnAllWorkspaces(visible[, options])` _macOS_ _Linux_
+#### `win.setVisibleOnAllWorkspaces(visible[, options])`
 
 * `visible` boolean
 * `options` Object (optional)
@@ -1692,7 +1676,7 @@ Sets whether the window should be visible on all workspaces.
 
 **Note:** This API does nothing on Windows.
 
-#### `win.isVisibleOnAllWorkspaces()` _macOS_ _Linux_
+#### `win.isVisibleOnAllWorkspaces()`
 
 Returns `boolean` - Whether the window is visible on all workspaces.
 

docs/api/client-request.md

@@ -185,7 +185,7 @@ the first write will throw an error. If the passed value is not a `string`, its
 
 Certain headers are restricted from being set by apps. These headers are
 listed below. More information on restricted headers can be found in
-[Chromium's header utils](https://source.chromium.org/chromium/chromium/src/+/main:services/network/public/cpp/header_util.cc;drc=1562cab3f1eda927938f8f4a5a91991fefde66d3;bpv=1;bpt=1;l=22).
+[Chromium's header utils](https://source.chromium.org/chromium/chromium/src/+/master:services/network/public/cpp/header_util.cc;drc=1562cab3f1eda927938f8f4a5a91991fefde66d3;bpv=1;bpt=1;l=22).
 
 * `Content-Length`
 * `Host`

docs/api/command-line-switches.md

@@ -274,8 +274,8 @@ By default inspector websocket url is available in stderr and under /json/list e
 [ready]: app.md#event-ready
 [play-silent-audio]: https://github.com/atom/atom/pull/9485/files
 [debugging-main-process]: ../tutorial/debugging-main-process.md
-[logging]: https://source.chromium.org/chromium/chromium/src/+/main:base/logging.h
+[logging]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h
 [node-cli]: https://nodejs.org/api/cli.html
 [play-silent-audio]: https://github.com/atom/atom/pull/9485/files
 [ready]: app.md#event-ready
-[severities]: https://source.chromium.org/chromium/chromium/src/+/main:base/logging.h?q=logging::LogSeverity&ss=chromium
+[severities]: https://source.chromium.org/chromium/chromium/src/+/master:base/logging.h?q=logging::LogSeverity&ss=chromium

docs/api/content-tracing.md

@@ -36,7 +36,7 @@ Returns `Promise<string[]>` - resolves with an array of category groups once all
 
 Get a set of category groups. The category groups can change as new code paths
 are reached. See also the [list of built-in tracing
-categories](https://chromium.googlesource.com/chromium/src/+/main/base/trace_event/builtin_categories.h).
+categories](https://chromium.googlesource.com/chromium/src/+/master/base/trace_event/builtin_categories.h).
 
 > **NOTE:** Electron adds a non-default tracing category called `"electron"`.
 > This category can be used to capture Electron-specific tracing events.

docs/api/context-bridge.md

@@ -35,7 +35,7 @@ page you load in your renderer executes code in this world.
 
 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) docs.
+[security](../tutorial/security.md#3-enable-context-isolation-for-remote-content) docs.
 
 ## Methods
 

docs/api/ipc-main.md

@@ -1,10 +1,3 @@
----
-title: "ipcMain"
-description: "Communicate asynchronously from the main process to renderer processes."
-slug: ipc-main
-hide_title: false
----
-
 # ipcMain
 
 > Communicate asynchronously from the main process to renderer processes.
@@ -16,9 +9,7 @@ process, it handles asynchronous and synchronous messages sent from a renderer
 process (web page). Messages sent from a renderer will be emitted to this
 module.
 
-For usage examples, check out the [IPC tutorial].
-
-## Sending messages
+## Sending Messages
 
 It is also possible to send messages from the main process to the renderer
 process, see [webContents.send][web-contents-send] for more information.
@@ -30,6 +21,36 @@ process, see [webContents.send][web-contents-send] for more information.
   coming from frames that aren't the main frame (e.g. iframes) whereas
   `event.sender.send(...)` will always send to the main frame.
 
+An example of sending and handling messages between the render and main
+processes:
+
+```javascript
+// In main process.
+const { ipcMain } = require('electron')
+ipcMain.on('asynchronous-message', (event, arg) => {
+  console.log(arg) // prints "ping"
+  event.reply('asynchronous-reply', 'pong')
+})
+
+ipcMain.on('synchronous-message', (event, arg) => {
+  console.log(arg) // prints "ping"
+  event.returnValue = 'pong'
+})
+```
+
+```javascript
+// In renderer process (web page).
+// NB. Electron APIs are only accessible from preload, unless contextIsolation is disabled.
+// See https://www.electronjs.org/docs/tutorial/process-model#preload-scripts for more details.
+const { ipcRenderer } = require('electron')
+console.log(ipcRenderer.sendSync('synchronous-message', 'ping')) // prints "pong"
+
+ipcRenderer.on('asynchronous-reply', (event, arg) => {
+  console.log(arg) // prints "pong"
+})
+ipcRenderer.send('asynchronous-message', 'ping')
+```
+
 ## Methods
 
 The `ipcMain` module has the following method to listen for events:
@@ -38,7 +59,7 @@ The `ipcMain` module has the following method to listen for events:
 
 * `channel` string
 * `listener` Function
-  * `event` [IpcMainEvent][ipc-main-event]
+  * `event` IpcMainEvent
   * `...args` any[]
 
 Listens to `channel`, when a new message arrives `listener` would be called with
@@ -48,7 +69,7 @@ Listens to `channel`, when a new message arrives `listener` would be called with
 
 * `channel` string
 * `listener` Function
-  * `event` [IpcMainEvent][ipc-main-event]
+  * `event` IpcMainEvent
   * `...args` any[]
 
 Adds a one time `listener` function for the event. This `listener` is invoked
@@ -72,8 +93,8 @@ Removes listeners of the specified `channel`.
 ### `ipcMain.handle(channel, listener)`
 
 * `channel` string
-* `listener` Function<Promise\<void&#62; | any&#62;
-  * `event` [IpcMainInvokeEvent][ipc-main-invoke-event]
+* `listener` Function<Promise\<void> | any>
+  * `event` IpcMainInvokeEvent
   * `...args` any[]
 
 Adds a handler for an `invoke`able IPC. This handler will be called whenever a
@@ -83,14 +104,14 @@ If `listener` returns a Promise, the eventual result of the promise will be
 returned as a reply to the remote caller. Otherwise, the return value of the
 listener will be used as the value of the reply.
 
-```js title='Main Process'
+```js
+// Main process
 ipcMain.handle('my-invokable-ipc', async (event, ...args) => {
   const result = await somePromise(...args)
   return result
 })
-```
 
-```js title='Renderer Process'
+// Renderer process
 async () => {
   const result = await ipcRenderer.invoke('my-invokable-ipc', arg1, arg2)
   // ...
@@ -109,7 +130,7 @@ provided to the renderer process. Please refer to
 ### `ipcMain.handleOnce(channel, listener)`
 
 * `channel` string
-* `listener` Function<Promise\<void&#62; | any&#62;
+* `listener` Function<Promise\<void> | any>
   * `event` IpcMainInvokeEvent
   * `...args` any[]
 
@@ -125,16 +146,13 @@ Removes any handler for `channel`, if present.
 ## IpcMainEvent object
 
 The documentation for the `event` object passed to the `callback` can be found
-in the [`ipc-main-event`][ipc-main-event] structure docs.
+in the [`ipc-main-event`](structures/ipc-main-event.md) structure docs.
 
 ## IpcMainInvokeEvent object
 
 The documentation for the `event` object passed to `handle` callbacks can be
-found in the [`ipc-main-invoke-event`][ipc-main-invoke-event]
+found in the [`ipc-main-invoke-event`](structures/ipc-main-invoke-event.md)
 structure docs.
 
-[IPC tutorial]: ../tutorial/ipc.md
 [event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
-[web-contents-send]: ../api/web-contents.md#contentssendchannel-args
-[ipc-main-event]:../api/structures/ipc-main-event.md
-[ipc-main-invoke-event]:../api/structures/ipc-main-invoke-event.md
+[web-contents-send]: web-contents.md#contentssendchannel-args

docs/api/ipc-renderer.md

@@ -1,10 +1,3 @@
----
-title: "ipcRenderer"
-description: "Communicate asynchronously from a renderer process to the main process."
-slug: ipc-renderer
-hide_title: false
----
-
 # ipcRenderer
 
 > Communicate asynchronously from a renderer process to the main process.
@@ -16,7 +9,7 @@ methods so you can send synchronous and asynchronous messages from the render
 process (web page) to the main process. You can also receive replies from the
 main process.
 
-See [IPC tutorial](../tutorial/ipc.md) for code examples.
+See [ipcMain](ipc-main.md) for code examples.
 
 ## Methods
 
@@ -77,7 +70,7 @@ throw an exception.
 > 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.
+[`ipcMain`](ipc-main.md) module.
 
 If you need to transfer a [`MessagePort`][] to the main process, use [`ipcRenderer.postMessage`](#ipcrendererpostmessagechannel-message-transfer).
 
@@ -105,7 +98,7 @@ throw an exception.
 > 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).
+[`ipcMain.handle()`](ipc-main.md#ipcmainhandlechannel-listener).
 
 For example:
 
@@ -131,11 +124,11 @@ If you do not need a response to the message, consider using [`ipcRenderer.send`
 * `channel` string
 * `...args` any[]
 
-Returns `any` - The value sent back by the [`ipcMain`](./ipc-main.md) handler.
+Returns `any` - The value sent back by the [`ipcMain`](ipc-main.md) handler.
 
 Send a message to the main process via `channel` and expect a result
 synchronously. Arguments will be serialized with the [Structured Clone
-Algorithm][SCA], just like [`window.postMessage`], so prototype chains will not be
+Algorithm][SCA], just like [`window.postMessage`][], so prototype chains will not be
 included. Sending Functions, Promises, Symbols, WeakMaps, or WeakSets will
 throw an exception.
 
@@ -147,13 +140,13 @@ throw an exception.
 > 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,
+The main process handles it by listening for `channel` with [`ipcMain`](ipc-main.md) module,
 and replies by setting `event.returnValue`.
 
 > :warning: **WARNING**: Sending a synchronous message will block the whole
 > renderer process until the reply is received, so use this method only as a
 > last resort. It's much better to use the asynchronous version,
-> [`invoke()`](./ipc-renderer.md#ipcrendererinvokechannel-args).
+> [`invoke()`](ipc-renderer.md#ipcrendererinvokechannel-args).
 
 ### `ipcRenderer.postMessage(channel, message, [transfer])`
 
@@ -165,7 +158,7 @@ Send a message to the main process, optionally transferring ownership of zero
 or more [`MessagePort`][] objects.
 
 The transferred `MessagePort` objects will be available in the main process as
-[`MessagePortMain`](./message-port-main.md) objects by accessing the `ports`
+[`MessagePortMain`](message-port-main.md) objects by accessing the `ports`
 property of the emitted event.
 
 For example:
@@ -204,7 +197,7 @@ the host page instead of the main process.
 ## Event object
 
 The documentation for the `event` object passed to the `callback` can be found
-in the [`ipc-renderer-event`](./structures/ipc-renderer-event.md) structure docs.
+in the [`ipc-renderer-event`](structures/ipc-renderer-event.md) structure docs.
 
 [event-emitter]: https://nodejs.org/api/events.html#events_class_eventemitter
 [SCA]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm

docs/api/session.md

@@ -253,11 +253,9 @@ Returns:
   * `device` [HIDDevice[]](structures/hid-device.md)
   * `frame` [WebFrameMain](web-frame-main.md)
 
-Emitted after `navigator.hid.requestDevice` has been called and
-`select-hid-device` has fired if a new device becomes available before
-the callback from `select-hid-device` is called.  This event is intended for
-use when using a UI to ask users to pick a device so that the UI can be updated
-with the newly added device.
+Emitted when a new HID device becomes available. For example, when a new USB device is plugged in.
+
+This event will only be emitted after `navigator.hid.requestDevice` has been called and `select-hid-device` has fired.
 
 #### Event: 'hid-device-removed'
 
@@ -268,24 +266,9 @@ Returns:
   * `device` [HIDDevice[]](structures/hid-device.md)
   * `frame` [WebFrameMain](web-frame-main.md)
 
-Emitted after `navigator.hid.requestDevice` has been called and
-`select-hid-device` has fired if a device has been removed before the callback
-from `select-hid-device` is called.  This event is intended for use when using
-a UI to ask users to pick a device so that the UI can be updated to remove the
-specified device.
+Emitted when a HID device has been removed.  For example, this event will fire when a USB device is unplugged.
 
-#### Event: 'hid-device-revoked'
-
-Returns:
-
-* `event` Event
-* `details` Object
-  * `device` [HIDDevice[]](structures/hid-device.md)
-  * `frame` [WebFrameMain](web-frame-main.md)
-
-Emitted after `HIDDevice.forget()` has been called.  This event can be used
-to help maintain persistent storage of permissions when
-`setDevicePermissionHandler` is used.
+This event will only be emitted after `navigator.hid.requestDevice` has been called and `select-hid-device` has fired.
 
 #### Event: 'select-serial-port'
 
@@ -365,11 +348,7 @@ Returns:
 * `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 before
-the callback from `select-serial-port` is called.  This event is intended for
-use when using a UI to ask users to pick a port so that the UI can be updated
-with the newly added port.
+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'
 
@@ -379,11 +358,7 @@ Returns:
 * `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 before the
-callback from `select-serial-port` is called.  This event is intended for use
-when using a UI to ask users to pick a port so that the UI can be updated
-to remove the specified port.
+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
 
@@ -592,7 +567,7 @@ the original network configuration.
     * `errorCode` Integer - Error code.
   * `callback` Function
     * `verificationResult` Integer - Value can be one of certificate error codes
-    from [here](https://source.chromium.org/chromium/chromium/src/+/main: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.

docs/api/structures/protocol-response.md

@@ -31,4 +31,4 @@
 * `uploadData` [ProtocolResponseUploadData](protocol-response-upload-data.md) (optional) - The data used as upload data. This is only
   used for URL responses when `method` is `"POST"`.
 
-[net-error]: https://source.chromium.org/chromium/chromium/src/+/main:net/base/net_error_list.h
+[net-error]: https://source.chromium.org/chromium/chromium/src/+/master:net/base/net_error_list.h

docs/api/structures/trace-config.md

@@ -8,7 +8,7 @@
 * `enable_argument_filter` boolean (optional) - if true, filter event data
   according to a specific list of events that have been manually vetted to not
   include any PII. See [the implementation in
-  Chromium][trace_event_args_allowlist.cc] for specifics.
+  Chromium][trace_event_args_whitelist.cc] for specifics.
 * `included_categories` string[] (optional) - a list of tracing categories to
   include. Can include glob-like patterns using `*` at the end of the category
   name. See [tracing categories][] for the list of categories.
@@ -45,7 +45,7 @@ An example TraceConfig that roughly matches what Chrome DevTools records:
 }
 ```
 
-[tracing categories]: https://chromium.googlesource.com/chromium/src/+/main/base/trace_event/builtin_categories.h
-[memory-infra docs]: https://chromium.googlesource.com/chromium/src/+/main/docs/memory-infra/memory_infra_startup_tracing.md#the-advanced-way
-[trace_event_args_allowlist.cc]: https://chromium.googlesource.com/chromium/src/+/main/services/tracing/public/cpp/trace_event_args_allowlist.cc
+[tracing categories]: https://chromium.googlesource.com/chromium/src/+/master/base/trace_event/builtin_categories.h
+[memory-infra docs]: https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_infra_startup_tracing.md#the-advanced-way
+[trace_event_args_whitelist.cc]: https://chromium.googlesource.com/chromium/src/+/master/services/tracing/public/cpp/trace_event_args_whitelist.cc
 [histogram]: https://chromium.googlesource.com/chromium/src.git/+/HEAD/tools/metrics/histograms/README.md

docs/api/system-preferences.md

@@ -183,11 +183,11 @@ Some popular `key` and `type`s are:
 * `NSPreferredWebServices`: `dictionary`
 * `NSUserDictionaryReplacementItems`: `array`
 
-### `systemPreferences.setUserDefault<Type extends keyof UserDefaultTypes>(key, type, value)` _macOS_
+### `systemPreferences.setUserDefault(key, type, value)` _macOS_
 
 * `key` string
-* `type` Type - Can be `string`, `boolean`, `integer`, `float`, `double`, `url`, `array` or `dictionary`.
-* `value` UserDefaultTypes[Type]
+* `type` string - Can be `string`, `boolean`, `integer`, `float`, `double`, `url`, `array` or `dictionary`.
+* `value` string
 
 Set the value of `key` in `NSUserDefaults`.
 

docs/api/web-contents.md

@@ -35,7 +35,7 @@ for all windows, webviews, opened devtools, and devtools extension background pa
 
 ### `webContents.getFocusedWebContents()`
 
-Returns `WebContents` | null - The web contents that is focused in this application, otherwise
+Returns `WebContents` - The web contents that is focused in this application, otherwise
 returns `null`.
 
 ### `webContents.fromId(id)`
@@ -92,7 +92,7 @@ Returns:
 * `frameRoutingId` Integer
 
 This event is like `did-finish-load` but emitted when the load failed.
-The full list of error codes and their meaning is available [here](https://source.chromium.org/chromium/chromium/src/+/main:net/base/net_error_list.h).
+The full list of error codes and their meaning is available [here](https://source.chromium.org/chromium/chromium/src/+/master:net/base/net_error_list.h).
 
 #### Event: 'did-fail-provisional-load'
 
@@ -820,6 +820,9 @@ This event can be used to configure `webPreferences` for the `webContents`
 of a `<webview>` before it's loaded, and provides the ability to set settings
 that can't be set via `<webview>` attributes.
 
+**Note:** The specified `preload` script option will appear as `preloadURL`
+(not `preload`) in the `webPreferences` object emitted with this event.
+
 #### Event: 'did-attach-webview'
 
 Returns:

docs/api/web-frame-main.md

@@ -195,6 +195,3 @@ have the same `routingId`.
 A `string` representing the [visibility state](https://developer.mozilla.org/en-US/docs/Web/API/Document/visibilityState) of the frame.
 
 See also how the [Page Visibility API](browser-window.md#page-visibility) is affected by other Electron APIs.
-
-[SCA]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
-[`postMessage`]: https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage

docs/api/web-frame.md

@@ -110,7 +110,7 @@ webFrame.setSpellCheckProvider('en-US', {
 })
 ```
 
-### `webFrame.insertCSS(css[, options])`
+#### `webFrame.insertCSS(css[, options])`
 
 * `css` string
 * `options` Object (optional)

docs/api/webview-tag.md

@@ -158,6 +158,9 @@ When the guest page doesn't have node integration this script will still have
 access to all Node APIs, but global objects injected by Node will be deleted
 after this script has finished executing.
 
+**Note:** This option will appear as `preloadURL` (not `preload`) in
+the `webPreferences` specified to the `will-attach-webview` event.
+
 ### `httpreferrer`
 
 ```html
@@ -556,7 +559,7 @@ Stops any `findInPage` request for the `webview` with the provided `action`.
   * `header` string (optional) - string to be printed as page header.
   * `footer` string (optional) - string to be printed as page footer.
   * `pageSize` string | Size (optional) - Specify page size of the printed document. Can be `A3`,
-  `A4`, `A5`, `Legal`, `Letter`, `Tabloid` or an Object containing `height` in microns.
+  `A4`, `A5`, `Legal`, `Letter`, `Tabloid` or an Object containing `height`.
 
 Returns `Promise<void>`
 

docs/api/window-open.md

@@ -73,11 +73,6 @@ creating the window. Note that this is more powerful than passing options
 through the feature string, as the renderer has more limited privileges in
 deciding security preferences than the main process.
 
-In addition to passing in `action` and `overrideBrowserWindowOptions`,
-`outlivesOpener` can be passed like: `{ action: 'allow', outlivesOpener: true,
-overrideBrowserWindowOptions: { ... } }`. If set to `true`, the newly created
-window will not close when the opener window closes. The default value is `false`.
-
 ### Native `Window` example
 
 ```javascript

docs/breaking-changes.md

@@ -36,7 +36,7 @@ requires unsafe mode), so Electron is unable to support this feature on Linux.
 
 ## Planned Breaking API Changes (19.0)
 
-None
+*None (yet)*
 
 ## Planned Breaking API Changes (18.0)
 
@@ -372,7 +372,7 @@ value.
 In Electron 12, `contextIsolation` will be enabled by default.  To restore
 the previous behavior, `contextIsolation: false` must be specified in WebPreferences.
 
-We [recommend having contextIsolation enabled](tutorial/security.md#3-enable-context-isolation) for the security of your application.
+We [recommend having contextIsolation enabled](tutorial/security.md#3-enable-context-isolation-for-remote-content) for the security of your application.
 
 Another implication is that `require()` cannot be used in the renderer process unless
 `nodeIntegration` is `true` and `contextIsolation` is `false`.

docs/development/build-instructions-gn.md

@@ -196,12 +196,12 @@ If you test other combinations and find them to work, please update this documen
 See the GN reference for allowable values of [`target_os`][target_os values]
 and [`target_cpu`][target_cpu values].
 
-[target_os values]: https://gn.googlesource.com/gn/+/main/docs/reference.md#built_in-predefined-variables-target_os_the-desired-operating-system-for-the-build-possible-values
-[target_cpu values]: https://gn.googlesource.com/gn/+/main/docs/reference.md#built_in-predefined-variables-target_cpu_the-desired-cpu-architecture-for-the-build-possible-values
+[target_os values]: https://gn.googlesource.com/gn/+/master/docs/reference.md#built_in-predefined-variables-target_os_the-desired-operating-system-for-the-build-possible-values
+[target_cpu values]: https://gn.googlesource.com/gn/+/master/docs/reference.md#built_in-predefined-variables-target_cpu_the-desired-cpu-architecture-for-the-build-possible-values
 
 #### Windows on Arm (experimental)
 
-To cross-compile for Windows on Arm, [follow Chromium's guide](https://chromium.googlesource.com/chromium/src/+/refs/heads/main/docs/windows_build_instructions.md#Visual-Studio) to get the necessary dependencies, SDK and libraries, then build with `ELECTRON_BUILDING_WOA=1` in your environment before running `gclient sync`.
+To cross-compile for Windows on Arm, [follow Chromium's guide](https://chromium.googlesource.com/chromium/src/+/refs/heads/master/docs/windows_build_instructions.md#Visual-Studio) to get the necessary dependencies, SDK and libraries, then build with `ELECTRON_BUILDING_WOA=1` in your environment before running `gclient sync`.
 
 ```bat
 set ELECTRON_BUILDING_WOA=1

docs/development/build-instructions-linux.md

@@ -82,7 +82,7 @@ $ sudo apt-get install libc6-dev-arm64-cross linux-libc-dev-arm64-cross \
                        g++-aarch64-linux-gnu
 ```
 
-And to cross-compile for `arm` or targets, you should pass the
+And to cross-compile for `arm` or `ia32` targets, you should pass the
 `target_cpu` parameter to `gn gen`:
 
 ```sh

docs/development/build-instructions-windows.md

@@ -9,12 +9,14 @@ Follow the guidelines below for building **Electron itself** on Windows, for the
 * Windows 10 / Server 2012 R2 or higher
 * Visual Studio 2017 15.7.2 or higher - [download VS 2019 Community Edition for
   free](https://www.visualstudio.com/vs/)
-  * See [the Chromium build documentation](https://chromium.googlesource.com/chromium/src/+/main/docs/windows_build_instructions.md#visual-studio) for more details on which Visual Studio
+  * See [the Chromium build documentation](https://chromium.googlesource.com/chromium/src/+/master/docs/windows_build_instructions.md#visual-studio) for more details on which Visual Studio
   components are required.
   * If your Visual Studio is installed in a directory other than the default, you'll need to
   set a few environment variables to point the toolchains to your installation path.
     * `vs2019_install = DRIVE:\path\to\Microsoft Visual Studio\2019\Community`, replacing `2019` and `Community` with your installed versions and replacing `DRIVE:` with the drive that Visual Studio is on. Often, this will be `C:`.
     * `WINDOWSSDKDIR = DRIVE:\path\to\Windows Kits\10`, replacing `DRIVE:` with the drive that Windows Kits is on. Often, this will be `C:`.
+  * [Python for Windows (pywin32) Extensions](https://pypi.org/project/pywin32/#files)
+  is also needed in order to run the build process.
 * [Node.js](https://nodejs.org/download/)
 * [Git](https://git-scm.com)
 * Debugging Tools for Windows of Windows SDK 10.0.15063.468 if you plan on

docs/development/issues.md

@@ -24,7 +24,7 @@ contribute:
 
 ## Asking for General Help
 
-[The Electron website](https://electronjs.org/community) has a
+["Finding Support"](../tutorial/support.md#finding-support) has a
 list of resources for getting programming help, reporting security issues,
 contributing, and more. Please use the issue tracker for bugs only!
 

docs/fiddles/communication/two-processes/asynchronous-messages/index.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <div>
+        <h1>Asynchronous messages</h1>
+        <i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
+        <div>
+          <div>
+            <button id="async-msg">Ping</button>
+            <span id="async-reply"></span>
+          </div>
+          <p>Using <code>ipc</code> to send messages between processes asynchronously is the preferred method since it will return when finished without blocking other operations in the same process.</p>
+
+          <p>This example sends a "ping" from this process (renderer) to the main process. The main process then replies with "pong".</p>
+        </div>
+      </div>
+    </div>
+    <script>
+      // You can also require other files to run in this process
+      require('./renderer.js')
+    </script>
+  </body>
+</html>

docs/fiddles/communication/two-processes/asynchronous-messages/main.js

@@ -0,0 +1,29 @@
+const { app, BrowserWindow, ipcMain } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 400,
+    title: 'Asynchronous messages',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.whenReady().then(() => {
+  createWindow()
+})
+
+ipcMain.on('asynchronous-message', (event, arg) => {
+  event.sender.send('asynchronous-reply', 'pong')
+})

docs/fiddles/communication/two-processes/asynchronous-messages/renderer.js

@@ -0,0 +1,12 @@
+const { ipcRenderer } = require('electron')
+
+const asyncMsgBtn = document.getElementById('async-msg')
+
+asyncMsgBtn.addEventListener('click', () => {
+  ipcRenderer.send('asynchronous-message', 'ping')
+})
+
+ipcRenderer.on('asynchronous-reply', (event, arg) => {
+  const message = `Asynchronous message reply: ${arg}`
+  document.getElementById('async-reply').innerHTML = message
+})

docs/fiddles/communication/two-processes/synchronous-messages/index.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <div>
+      <div>
+        <h1>Synchronous messages</h1>
+        <i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
+        <div>
+          <div>
+            <button id="sync-msg">Ping</button>
+            <span id="sync-reply"></span>
+          </div>
+          <p>You can use the <code>ipc</code> module to send synchronous messages between processes as well, but note that the synchronous nature of this method means that it <b>will block</b> other operations while completing its task.</p>
+          
+          <p>This example sends a synchronous message, "ping", from this process (renderer) to the main process. The main process then replies with "pong".</p>
+        </div>
+      </div>
+    </div>
+    <script>
+      // You can also require other files to run in this process
+      require('./renderer.js')
+    </script>
+  </body>
+</html> 

docs/fiddles/communication/two-processes/synchronous-messages/main.js

@@ -0,0 +1,29 @@
+const { app, BrowserWindow, ipcMain } = require('electron')
+
+let mainWindow = null
+
+function createWindow () {
+  const windowOptions = {
+    width: 600,
+    height: 400,
+    title: 'Synchronous Messages',
+    webPreferences: {
+      nodeIntegration: true
+    }
+  }
+
+  mainWindow = new BrowserWindow(windowOptions)
+  mainWindow.loadFile('index.html')
+
+  mainWindow.on('closed', () => {
+    mainWindow = null
+  })
+}
+
+app.whenReady().then(() => {
+  createWindow()
+})
+
+ipcMain.on('synchronous-message', (event, arg) => {
+    event.returnValue = 'pong'
+})

docs/fiddles/communication/two-processes/synchronous-messages/renderer.js

@@ -0,0 +1,9 @@
+const { ipcRenderer } = require('electron')
+
+const syncMsgBtn = document.getElementById('sync-msg')
+
+syncMsgBtn.addEventListener('click', () => {
+    const reply = ipcRenderer.sendSync('synchronous-message', 'ping')
+    const message = `Synchronous message reply: ${reply}`
+    document.getElementById('sync-reply').innerHTML = message
+})

docs/fiddles/features/web-hid/main.js

@@ -8,24 +8,20 @@ function createWindow () {
   })
   
   mainWindow.webContents.session.on('select-hid-device', (event, details, callback) => {
-    //Add events to handle devices being added or removed before the callback on
-    //`select-hid-device` is called.
-    mainWindow.webContents.session.on('hid-device-added', (event, device) => {    
-      console.log('hid-device-added FIRED WITH', device)
-      //Optionally update details.deviceList
-    })
-  
-    mainWindow.webContents.session.on('hid-device-removed', (event, device) => {    
-      console.log('hid-device-removed FIRED WITH', device)
-      //Optionally update details.deviceList
-    })
-
     event.preventDefault()
     if (details.deviceList && details.deviceList.length > 0) {
       callback(details.deviceList[0].deviceId)
     }
   })
 
+  mainWindow.webContents.session.on('hid-device-added', (event, device) => {    
+    console.log('hid-device-added FIRED WITH', device)
+  })
+
+  mainWindow.webContents.session.on('hid-device-removed', (event, device) => {    
+    console.log('hid-device-removed FIRED WITH', device)
+  })
+
   mainWindow.webContents.session.setPermissionCheckHandler((webContents, permission, requestingOrigin, details) => {
     if (permission === 'hid' && details.securityOrigin === 'file:///') {
       return true

docs/fiddles/features/web-serial/main.js

@@ -8,19 +8,6 @@ function createWindow () {
   })
   
   mainWindow.webContents.session.on('select-serial-port', (event, portList, webContents, callback) => {
-
-    //Add listeners to handle ports being added or removed before the callback for `select-serial-port`
-    //is called.
-    mainWindow.webContents.session.on('serial-port-added', (event, port) => {
-      console.log('serial-port-added FIRED WITH', port)
-      //Optionally update portList to add the new port
-    })
-  
-    mainWindow.webContents.session.on('serial-port-removed', (event, port) => {
-      console.log('serial-port-removed FIRED WITH', port)
-      //Optionally update portList to remove the port
-    })
-
     event.preventDefault()
     if (portList && portList.length > 0) {
       callback(portList[0].portId)
@@ -29,6 +16,14 @@ function createWindow () {
     }
   })
 
+  mainWindow.webContents.session.on('serial-port-added', (event, port) => {
+    console.log('serial-port-added FIRED WITH', port)
+  })
+
+  mainWindow.webContents.session.on('serial-port-removed', (event, port) => {
+    console.log('serial-port-removed FIRED WITH', port)
+  })
+
   mainWindow.webContents.session.setPermissionCheckHandler((webContents, permission, requestingOrigin, details) => {
     if (permission === 'serial' && details.securityOrigin === 'file:///') {
       return true

docs/glossary.md

@@ -91,7 +91,7 @@ An IPC system for communicating intra- or inter-process, and that's important
 because Chrome is keen on being able to split its work into separate processes
 or not, depending on memory pressures etc.
 
-See https://chromium.googlesource.com/chromium/src/+/main/mojo/README.md
+See https://chromium.googlesource.com/chromium/src/+/master/mojo/README.md
 
 See also: [IPC](#ipc)
 

docs/images/tutorial-release-schedule.svg

@@ -0,0 +1,97 @@
+<?xml version="1.0" standalone="yes"?>
+<svg width="520" height="220" version="1.1" xmlns="http://www.w3.org/2000/svg">
+  <marker id="arrow" viewBox="-1 0 12 10" refX="10.5" refY="5" markerWidth="8" markerHeight="8" orient="auto">
+    <path d="M 0 0 L 10 5 L 0 10"/>
+  </marker>
+  <g transform="translate(0,40)">
+    <!-- master -->
+    <text x="60" y="30" text-anchor="end" alignment-baseline="middle">master</text>
+    <path d="M70 30 H 500" stroke-width="2" stroke="black"/>
+    <!-- v2.0 -->
+    <g>
+      <path d="M100 30 l 20 30 H 200" stroke-width="2" stroke="black" fill="transparent"/>
+      <text x="110" y="60" text-anchor="end" alignment-baseline="middle">2.0</text>
+      <circle cx="120" cy="60" r="5"/>
+      <text x="110" y="60" text-anchor="end" alignment-baseline="middle" transform="rotate(-60 120,60)">v2.0.0-beta0</text>
+      <circle cx="200" cy="60" r="5"/>
+      <text x="190" y="60" text-anchor="end" alignment-baseline="middle" transform="rotate(-60 200,60)">v2.0.0</text>
+    </g>
+    <!-- v2.1 -->
+    <g transform="translate(130,0)">
+      <path d="M100 30 l 20 30 H 200" stroke-width="2" stroke="black" fill="transparent"/>
+      <text x="110" y="60" text-anchor="end" alignment-baseline="middle">2.1</text>
+      <circle cx="120" cy="60" r="5"/>
+      <text x="110" y="60" text-anchor="end" alignment-baseline="middle" transform="rotate(-60 120,60)">v2.1.0-beta0</text>
+      <circle cx="160" cy="60" r="5"/>
+      <text x="150" y="60" text-anchor="end" alignment-baseline="middle" transform="rotate(-60 160,60)">v2.1.0-beta1</text>
+      <circle cx="200" cy="60" r="5"/>
+      <text x="190" y="60" text-anchor="end" alignment-baseline="middle" transform="rotate(-60 200,60)">v2.1.0</text>
+    </g>
+    <!-- v3.0 -->
+    <g transform="translate(260,0)">
+      <path d="M100 30 l 20 30 H 200" stroke-width="2" stroke="black" fill="transparent"/>
+      <text x="110" y="60" text-anchor="end" alignment-baseline="middle">3.0</text>
+      <circle cx="120" cy="60" r="5"/>
+      <text x="110" y="60" text-anchor="end" alignment-baseline="middle" transform="rotate(-60 120,60)">v3.0.0-beta0</text>
+      <circle cx="200" cy="60" r="5"/>
+      <text x="190" y="60" text-anchor="end" alignment-baseline="middle" transform="rotate(-60 200,60)">v3.0.0</text>
+    </g>
+    <!-- Bug fixes -->
+    <g transform="translate(160,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">bug fix</text>
+      <path d="M0 0 l0,30" marker-end="url(#arrow)" stroke-dasharray="2,2" stroke="#000"/>
+    </g>
+    <g transform="translate(260,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">bug fix</text>
+      <path d="M0 0 l0,30" marker-end="url(#arrow)" stroke-dasharray="2,2" stroke="#000"/>
+    </g>
+    <g transform="translate(280,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">bug fix</text>
+      <path d="M0 0 l0,30" marker-end="url(#arrow)" stroke-dasharray="2,2" stroke="#000"/>
+    </g>
+    <g transform="translate(400,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">bug fix</text>
+      <path d="M0 0 l0,30" marker-end="url(#arrow)" stroke-dasharray="2,2" stroke="#000"/>
+    </g>
+    <g transform="translate(430,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">bug fix</text>
+      <path d="M0 0 l0,30" marker-end="url(#arrow)" stroke-dasharray="2,2" stroke="#000"/>
+    </g>
+    <!-- Features -->
+    <g transform="translate(130,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">feature</text>
+    </g>
+    <g transform="translate(200,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">feature</text>
+    </g>
+    <g transform="translate(340,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)">feature</text>
+    </g>
+    <!-- Chromium update -->
+    <g transform="translate(310,30)">
+      <circle cx="0" cy="0" r="3"/>
+      <text x="10" y="0" text-anchor="start" alignment-baseline="middle" transform="rotate(-60 0,0)"><tspan>chromium</tspan><tspan dy="10" x="10">update</tspan></text>
+    </g>
+    <!-- Timeline -->
+    <g transform="translate(100,160)">
+      <text x="50" y="0" text-anchor="middle" alignment-baseline="text-after-edge">~1 week</text>
+      <path d="M0 0 l0 10 l0 -5 H100l0 -5l0 10" stroke-width="2" stroke="black" fill="transparent"/>
+    </g>
+    <g transform="translate(230,160)">
+      <text x="50" y="0" text-anchor="middle" alignment-baseline="text-after-edge">~1 week</text>
+      <path d="M0 0 l0 10 l0 -5 H100l0 -5l0 10" stroke-width="2" stroke="black" fill="transparent"/>
+    </g>
+    <g transform="translate(360,160)">
+      <text x="50" y="0" text-anchor="middle" alignment-baseline="text-after-edge">~1 week</text>
+      <path d="M0 0 l0 10 l0 -5 H100l0 -5l0 10" stroke-width="2" stroke="black" fill="transparent"/>
+    </g>
+  </g>
+</svg>

docs/tutorial/devices.md

@@ -36,10 +36,8 @@ the WebHID API:
   can be used to select a HID device when a call to
   `navigator.hid.requestDevice` is made.  Additionally the [`hid-device-added`](../api/session.md#event-hid-device-added)
   and [`hid-device-removed`](../api/session.md#event-hid-device-removed) events
-  on the Session can be used to handle devices being plugged in or unplugged
-  when handling the `select-hid-device` event.
-  **Note:** These events only fire until the callback from `select-hid-device`
-  is called.  They are not intended to be used as a generic hid device listener.
+  on the Session can be used to handle devices being plugged in or unplugged during the
+  `navigator.hid.requestDevice` process.
 * [`ses.setDevicePermissionHandler(handler)`](../api/session.md#sessetdevicepermissionhandlerhandler)
   can be used to provide default permissioning to devices without first calling
   for permission to devices via `navigator.hid.requestDevice`.  Additionally,
@@ -84,11 +82,8 @@ There are several additional APIs for working with the Web Serial API:
 
 * The [`serial-port-added`](../api/session.md#event-serial-port-added)
   and [`serial-port-removed`](../api/session.md#event-serial-port-removed) events
-  on the Session can be used to handle devices being plugged in or unplugged
-  when handling the `select-serial-port` event.
-  **Note:** These events only fire until the callback from `select-serial-port`
-  is called.  They are not intended to be used as a generic serial port
-  listener.
+  on the Session can be used to handle devices being plugged in or unplugged during the
+  `navigator.serial.requestPort` process.
 * [`ses.setDevicePermissionHandler(handler)`](../api/session.md#sessetdevicepermissionhandlerhandler)
   can be used to provide default permissioning to devices without first calling
   for permission to devices via `navigator.serial.requestPort`.  Additionally,

docs/tutorial/electron-timelines.md

@@ -1,101 +1,30 @@
-# Electron Releases
+# Electron Release Timelines
 
-Electron frequently releases major versions alongside every other Chromium release.
-This document focuses on the release cadence and version support policy.
-For a more in-depth guide on our git branches and how Electron uses semantic versions,
-check out our [Electron Versioning](./electron-versioning.md) doc.
+Special notes:
 
-## Timeline
-
-| Electron | Alpha | Beta | Stable | Chrome | Node | Supported |
-| ------- | ----- | ------- | ------ | ------ | ---- | ---- |
-| 2.0.0 | -- | 2018-Feb-21 | 2018-May-01 | M61 | v8.9 | 🚫 |
-| 3.0.0 | -- | 2018-Jun-21 | 2018-Sep-18 | M66 | v10.2 | 🚫 |
-| 4.0.0 | -- | 2018-Oct-11 | 2018-Dec-20 | M69 | v10.11 | 🚫 |
-| 5.0.0 | -- | 2019-Jan-22 | 2019-Apr-24 | M73 | v12.0 | 🚫 |
-| 6.0.0 | -- | 2019-May-01 | 2019-Jul-30 | M76 | v12.4 | 🚫 |
-| 7.0.0 | -- | 2019-Aug-01 | 2019-Oct-22 | M78 | v12.8 | 🚫 |
-| 8.0.0 | -- | 2019-Oct-24 | 2020-Feb-04 | M80 | v12.13 | 🚫 |
-| 9.0.0 | -- | 2020-Feb-06 | 2020-May-19 | M83 | v12.14 | 🚫 |
-| 10.0.0 | -- | 2020-May-21 | 2020-Aug-25 | M85 | v12.16 | 🚫 |
-| 11.0.0 | -- | 2020-Aug-27 | 2020-Nov-17 | M87 | v12.18 | 🚫 |
-| 12.0.0 | -- | 2020-Nov-19 | 2021-Mar-02 | M89 | v14.16 | 🚫 |
-| 13.0.0 | -- | 2021-Mar-04 | 2021-May-25 | M91 | v14.16 | 🚫 |
-| 14.0.0 | -- | 2021-May-27 | 2021-Aug-31 | M93 | v14.17 | 🚫 |
-| 15.0.0 | 2021-Jul-20 | 2021-Sep-01 | 2021-Sep-21 | M94 | v16.5 | 🚫 |
-| 16.0.0 | 2021-Sep-23 | 2021-Oct-20 | 2021-Nov-16 | M96 | v16.9 | 🚫 |
-| 17.0.0 | 2021-Nov-18 | 2022-Jan-06 | 2022-Feb-01 | M98 | v16.13 | ✅ |
-| 18.0.0 | 2022-Feb-03 | 2022-Mar-03 | 2022-Mar-29 | M100 | v16.13 | ✅ |
-| 19.0.0 | 2022-Mar-31 | 2022-Apr-26 | 2022-May-24 | M102 | v16.14 | ✅ |
-| 20.0.0 | 2022-May-26 | 2022-Jun-21 | 2022-Aug-02 | M104 | TBD | ✅ |
-
-**Notes:**
-
-* The `-alpha.1`, `-beta.1`, and `stable` dates are our solid release dates.
-* We strive for weekly alpha/beta releases, but we often release more than scheduled.
+* The `-beta.1` and `stable` dates are our solid release dates.
+* We strive for weekly beta releases, however we often release more betas than scheduled.
 * All dates are our goals but there may be reasons for adjusting the stable deadline, such as security bugs.
+* Take a look at the [5.0.0 Timeline blog post](https://electronjs.org/blog/electron-5-0-timeline) for info about publicizing our release dates.
+* Since Electron 6.0, we've been targeting every other Chromium version and releasing our stable on the same day as Chrome stable. You can reference Chromium's release schedule [here](https://chromiumdash.appspot.com/schedule). See [Electron's new release cadence blog post](https://www.electronjs.org/blog/12-week-cadence) for more details on our release schedule.
+* Starting in Electron 16.0, we will release on an 8-week cadence. See [Electron's new 8-week cadence blog post](https://www.electronjs.org/blog/8-week-cadence) for more details.
 
-**Historical changes:**
-
-* Since Electron 5, Electron has been publicizing its release dates ([see blog post](https://electronjs.org/blog/electron-5-0-timeline)).
-* Since Electron 6, Electron major versions have been targeting every other Chromium major version. Each Electron stable should happen on the same day as Chrome stable ([see blog post](https://www.electronjs.org/blog/12-week-cadence)).
-* Since Electron 16, Electron has been releasing major versions on an 8-week cadence in accordance to Chrome's change to a 4-week release cadence ([see blog post](https://www.electronjs.org/blog/8-week-cadence)).
-
-:::info Chrome release dates
-
-Chromium has the own public release schedule [here](https://chromiumdash.appspot.com/schedule).
-
-:::
-
-## Version support policy
-
-:::info
-
-Beginning in September 2021 (Electron 15), the Electron team
-will temporarily support the latest **four** stable major versions. This
-extended support is intended to help Electron developers transition to
-the [new 8-week release cadence](https://electronjs.org/blog/8-week-cadence),
-and will continue until the release of Electron 19. At that time,
-the Electron team will drop support back to the latest three stable major versions.
-
-:::
-
-The latest three *stable* major versions are supported by the Electron team.
-For example, if the latest release is 6.1.x, then the 5.0.x as well
-as the 4.2.x series are supported. We only support the latest minor release
-for each stable release series. This means that in the case of a security fix,
-6.1.x will receive the fix, but we will not release a new version of 6.0.x.
-
-The latest stable release unilaterally receives all fixes from `main`,
-and the version prior to that receives the vast majority of those fixes
-as time and bandwidth warrants. The oldest supported release line will receive
-only security fixes directly.
-
-### Breaking API changes
-
-When an API is changed or removed in a way that breaks existing functionality, the
-previous functionality will be supported for a minimum of two major versions when
-possible before being removed. For example, if a function takes three arguments,
-and that number is reduced to two in major version 10, the three-argument version would
-continue to work until, at minimum, major version 12. Past the minimum two-version
-threshold, we will attempt to support backwards compatibility beyond two versions
-until the maintainers feel the maintenance burden is too high to continue doing so.
-
-### End-of-life
-
-When a release branch reaches the end of its support cycle, the series
-will be deprecated in NPM and a final end-of-support release will be
-made. This release will add a warning to inform that an unsupported
-version of Electron is in use.
-
-These steps are to help app developers learn when a branch they're
-using becomes unsupported, but without being excessively intrusive
-to end users.
-
-If an application has exceptional circumstances and needs to stay
-on an unsupported series of Electron, developers can silence the
-end-of-support warning by omitting the final release from the app's
-`package.json` `devDependencies`. For example, since the 1-6-x series
-ended with an end-of-support 1.6.18 release, developers could choose
-to stay in the 1-6-x series without warnings with `devDependency` of
-`"electron": 1.6.0 - 1.6.17`.
+| Electron | Alpha | Beta | Stable | Chrome | Node |
+| ------- | ----- | ------- | ------ | ------ | ---- |
+| 2.0.0 | -- | 2018-Feb-21 | 2018-May-01 | M61 | v8.9 |
+| 3.0.0 | -- | 2018-Jun-21 | 2018-Sep-18 | M66 | v10.2 |
+| 4.0.0 | -- | 2018-Oct-11 | 2018-Dec-20 | M69 | v10.11 |
+| 5.0.0 | -- | 2019-Jan-22 | 2019-Apr-24 | M73 | v12.0 |
+| 6.0.0 | -- | 2019-May-01 | 2019-Jul-30 | M76 | v12.4 |
+| 7.0.0 | -- | 2019-Aug-01 | 2019-Oct-22 | M78 | v12.8 |
+| 8.0.0 | -- | 2019-Oct-24 | 2020-Feb-04 | M80 | v12.13 |
+| 9.0.0 | -- | 2020-Feb-06 | 2020-May-19 | M83 | v12.14 |
+| 10.0.0 | -- | 2020-May-21 | 2020-Aug-25 | M85 | v12.16 |
+| 11.0.0 | -- | 2020-Aug-27 | 2020-Nov-17 | M87 | v12.18 |
+| 12.0.0 | -- | 2020-Nov-19 | 2021-Mar-02 | M89 | v14.16 |
+| 13.0.0 | -- | 2021-Mar-04 | 2021-May-25 | M91 | v14.16 |
+| 14.0.0 | -- | 2021-May-27 | 2021-Aug-31 | M93 | v14.17 |
+| 15.0.0 | 2021-Jul-20 | 2021-Sep-01 | 2021-Sep-21 | M94 | v16.5 |
+| 16.0.0 | 2021-Sep-23 | 2021-Oct-20 | 2021-Nov-16 | M96 | v16.9 |
+| 17.0.0 | 2021-Nov-18 | 2022-Jan-06 | 2022-Feb-01 | M98 | v16.13 |
+| 18.0.0 | 2022-Feb-03 | 2022-Mar-03 | 2022-Mar-29 | M100 | TBD |

docs/tutorial/electron-versioning.md

@@ -48,7 +48,7 @@ Stabilization branches are branches that run parallel to `main`, taking in only
 
 Since Electron 8, stabilization branches are always **major** version lines, and named against the following template `$MAJOR-x-y` e.g. `8-x-y`.  Prior to that we used **minor** version lines and named them as `$MAJOR-$MINOR-x` e.g. `2-0-x`.
 
-We allow for multiple stabilization branches to exist simultaneously, one for each supported version. For more details on which versions are supported, see our [Electron Releases](./electron-timelines.md) doc.
+We allow for multiple stabilization branches to exist simultaneously, one for each supported version. For more details on which versions are supported, see our [Electron Release Timelines](./electron-timelines.md) doc.
 
 ![Multiple Stability Branches](../images/versioning-sketch-2.png)
 
@@ -107,15 +107,6 @@ A few examples of how various SemVer ranges will pick up new releases:
 
 ![Semvers and Releases](../images/versioning-sketch-7.png)
 
-### Backport request process
-
-All supported release lines will accept external pull requests to backport
-fixes previously merged to `main`, though this may be on a case-by-case
-basis for some older supported lines. All contested decisions around release
-line backports will be resolved by the
-[Releases Working Group](https://github.com/electron/governance/tree/main/wg-releases)
-as an agenda item at their weekly meeting the week the backport PR is raised.
-
 ## Feature flags
 
 Feature flags are a common practice in Chromium, and are well-established in the web-development ecosystem. In the context of Electron, a feature flag or **soft branch** must have the following properties:

docs/tutorial/in-app-purchases.md

@@ -116,7 +116,7 @@ inAppPurchase.getProducts(PRODUCT_IDS).then(products => {
     console.log(`The price of ${product.localizedTitle} is ${product.formattedPrice}.`)
   })
 
-  // Ask the user which product they want to purchase.
+  // Ask the user which product he/she wants to purchase.
   const selectedProduct = products[0]
   const selectedQuantity = 1
 

docs/tutorial/process-model.md

@@ -40,7 +40,7 @@ to `require` modules and use all of Node.js APIs.
 
 ### Window management
 
-The primary purpose of the main process is to create and manage application windows with the
+The main process' primary purpose is to create and manage application windows with the
 [`BrowserWindow`][browser-window] module.
 
 Each instance of the `BrowserWindow` class creates an application window that loads

docs/tutorial/quick-start.md

@@ -66,7 +66,7 @@ Your `package.json` file should look something like this:
 Then, install the `electron` package into your app's `devDependencies`.
 
 ```sh npm2yarn
-npm install --save-dev electron
+$ npm install --save-dev electron
 ```
 
 > Note: If you're encountering any issues with installing Electron, please
@@ -403,7 +403,7 @@ app.on('window-all-closed', () => {
 ```js
 // preload.js
 
-// All the Node.js APIs are available in the preload process.
+// All of the Node.js APIs are available in the preload process.
 // It has the same sandbox as a Chrome extension.
 window.addEventListener('DOMContentLoaded', () => {
   const replaceText = (selector, text) => {

docs/tutorial/sandbox.md

@@ -157,7 +157,7 @@ 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.
 
-[sandbox]: https://chromium.googlesource.com/chromium/src/+/main/docs/design/sandbox.md
+[sandbox]: https://chromium.googlesource.com/chromium/src/+/master/docs/design/sandbox.md
 [issue-28466]: https://github.com/electron/electron/issues/28466
 [browser-window]: ../api/browser-window.md
 [enable-sandbox]: ../api/app.md#appenablesandbox

docs/tutorial/security.md

@@ -99,7 +99,7 @@ You should at least follow these steps to improve the security of your applicati
 
 1. [Only load secure content](#1-only-load-secure-content)
 2. [Disable the Node.js integration in all renderers that display remote content](#2-do-not-enable-nodejs-integration-for-remote-content)
-3. [Enable context isolation in all renderers](#3-enable-context-isolation)
+3. [Enable context isolation in all renderers that display remote content](#3-enable-context-isolation-for-remote-content)
 4. [Enable process sandboxing](#4-enable-process-sandboxing)
 5. [Use `ses.setPermissionRequestHandler()` in all sessions that load remote content](#5-handle-session-permission-requests-from-remote-content)
 6. [Do not disable `webSecurity`](#6-do-not-disable-websecurity)
@@ -225,7 +225,7 @@ do consume Node.js modules or features. Preload scripts continue to have access
 to `require` and other Node.js features, allowing developers to expose a custom
 API to remotely loaded content via the [contextBridge API](../api/context-bridge.md).
 
-### 3. Enable Context Isolation
+### 3. Enable Context Isolation for remote content
 
 :::info
 This recommendation is the default behavior in Electron since 12.0.0.
@@ -279,12 +279,11 @@ security-conscious developers might want to assume the very opposite.
 
 ```js title='main.js (Main Process)'
 const { session } = require('electron')
-const URL = require('url').URL
 
 session
   .fromPartition('some-partition')
   .setPermissionRequestHandler((webContents, permission, callback) => {
-    const parsedUrl = new URL(webContents.getURL())
+    const url = webContents.getURL()
 
     if (permission === 'notifications') {
       // Approves the permissions request
@@ -292,7 +291,7 @@ session
     }
 
     // Verify URL
-    if (parsedUrl.protocol !== 'https:' || parsedUrl.host !== 'example.com') {
+    if (!url.startsWith('https://example.com/')) {
       // Denies the permissions request
       return callback(false)
     }
@@ -563,6 +562,7 @@ app.on('web-contents-created', (event, contents) => {
   contents.on('will-attach-webview', (event, webPreferences, params) => {
     // Strip away preload scripts if unused or verify their location is legitimate
     delete webPreferences.preload
+    delete webPreferences.preloadURL
 
     // Disable Node.js integration
     webPreferences.nodeIntegration = false
@@ -724,41 +724,6 @@ Migrate your app one major version at a time, while referring to Electron's
 [Breaking Changes][breaking-changes] document to see if any code needs to
 be updated.
 
-### 17. Validate the `sender` of all IPC messages
-
-You should always validate incoming IPC messages `sender` property to ensure you
-aren't performing actions or sending information to untrusted renderers.
-
-#### Why?
-
-All Web Frames can in theory send IPC messages to the main process, including
-iframes and child windows in some scenarios.  If you have an IPC message that returns
-user data to the sender via `event.reply` or performs privileged actions that the renderer
-can't natively, you should ensure you aren't listening to third party web frames.
-
-You should be validating the `sender` of **all** IPC messages by default.
-
-#### How?
-
-```js title='main.js (Main Process)'
-// Bad
-ipcMain.handle('get-secrets', () => {
-  return getSecrets();
-});
-
-// Good
-ipcMain.handle('get-secrets', (e) => {
-  if (!validateSender(e.senderFrame)) return null;
-  return getSecrets();
-});
-
-function validateSender(frame) {
-  // Value the host of the URL using an actual URL parser and an allowlist
-  if ((new URL(frame.url)).host === 'electronjs.org') return true;
-  return false;
-}
-```
-
 [breaking-changes]: ../breaking-changes.md
 [browser-window]: ../api/browser-window.md
 [browser-view]: ../api/browser-view.md

docs/tutorial/support.md

@@ -1,5 +1,128 @@
-# This doc has moved!
+# Electron Support
 
-* For information on supported releases, see the [Electron Releases](./electron-timelines.md) doc.
-* For community support on Electron, see the [Community page](https://www.electronjs.org/community).
-* For platform support info, see the [README](https://github.com/electron/electron/blob/main/README.md).
+## Finding Support
+
+If you have a security concern,
+please see the [security document](https://github.com/electron/electron/tree/main/SECURITY.md).
+
+If you're looking for programming help,
+for answers to questions,
+or to join in discussion with other developers who use Electron,
+you can interact with the community in these locations:
+
+* [Electron's Discord server](https://discord.com/invite/APGC3k5yaH) has channels for:
+  * Getting help
+  * Ecosystem apps like [Electron Forge](https://github.com/electron-userland/electron-forge) and [Electron Fiddle](https://github.com/electron/fiddle)
+  * Sharing ideas with other Electron app developers
+  * And more!
+* [`electron`](https://discuss.atom.io/c/electron) category on the Atom forums
+* `#electron` channel on [Atom's Slack](https://discuss.atom.io/t/join-us-on-slack/16638?source_topic_id=25406)
+* [`electron-ru`](https://telegram.me/electron_ru) *(Russian)*
+* [`electron-br`](https://electron-br.slack.com) *(Brazilian Portuguese)*
+* [`electron-kr`](https://electron-kr.github.io/electron-kr) *(Korean)*
+* [`electron-jp`](https://electron-jp.slack.com) *(Japanese)*
+* [`electron-tr`](https://electron-tr.herokuapp.com) *(Turkish)*
+* [`electron-id`](https://electron-id.slack.com) *(Indonesia)*
+* [`electron-pl`](https://electronpl.github.io) *(Poland)*
+
+If you'd like to contribute to Electron,
+see the [contributing document](https://github.com/electron/electron/blob/main/CONTRIBUTING.md).
+
+If you've found a bug in a [supported version](#supported-versions) of Electron,
+please report it with the [issue tracker](../development/issues.md).
+
+[awesome-electron](https://github.com/sindresorhus/awesome-electron)
+is a community-maintained list of useful example apps,
+tools and resources.
+
+## Supported Versions
+
+_**Note:** Beginning in September 2021 with Electron 15, the Electron team
+will temporarily support the latest **four** stable major versions. This
+extended support is intended to help Electron developers transition to
+the [new eight week release cadence](https://electronjs.org/blog/8-week-cadence), and will continue until May 2022, with
+the release of Electron 19. At that time, the Electron team will drop support
+back to the latest three stable major versions._
+
+The latest three *stable* major versions are supported by the Electron team.
+For example, if the latest release is 6.1.x, then the 5.0.x as well
+as the 4.2.x series are supported.  We only support the latest minor release
+for each stable release series.  This means that in the case of a security fix
+6.1.x will receive the fix, but we will not release a new version of 6.0.x.
+
+The latest stable release unilaterally receives all fixes from `main`,
+and the version prior to that receives the vast majority of those fixes
+as time and bandwidth warrants. The oldest supported release line will receive
+only security fixes directly.
+
+All supported release lines will accept external pull requests to backport
+fixes previously merged to `main`, though this may be on a case-by-case
+basis for some older supported lines. All contested decisions around release
+line backports will be resolved by the [Releases Working Group](https://github.com/electron/governance/tree/main/wg-releases) as an agenda item at their weekly meeting the week the backport PR is raised.
+
+When an API is changed or removed in a way that breaks existing functionality, the
+previous functionality will be supported for a minimum of two major versions when
+possible before being removed. For example, if a function takes three arguments,
+and that number is reduced to two in major version 10, the three-argument version would
+continue to work until, at minimum, major version 12. Past the minimum two-version
+threshold, we will attempt to support backwards compatibility beyond two versions
+until the maintainers feel the maintenance burden is too high to continue doing so.
+
+### Currently supported versions
+
+* 18.x.y
+* 17.x.y
+* 16.x.y
+* 15.x.y
+
+### End-of-life
+
+When a release branch reaches the end of its support cycle, the series
+will be deprecated in NPM and a final end-of-support release will be
+made. This release will add a warning to inform that an unsupported
+version of Electron is in use.
+
+These steps are to help app developers learn when a branch they're
+using becomes unsupported, but without being excessively intrusive
+to end users.
+
+If an application has exceptional circumstances and needs to stay
+on an unsupported series of Electron, developers can silence the
+end-of-support warning by omitting the final release from the app's
+`package.json` `devDependencies`. For example, since the 1-6-x series
+ended with an end-of-support 1.6.18 release, developers could choose
+to stay in the 1-6-x series without warnings with `devDependency` of
+`"electron": 1.6.0 - 1.6.17`.
+
+## Supported Platforms
+
+Following platforms are supported by Electron:
+
+### macOS
+
+Only 64bit binaries are provided for macOS, and the minimum macOS version
+supported is macOS 10.11 (El Capitan).
+
+Native support for Apple Silicon (`arm64`) devices was added in Electron 11.0.0.
+
+### Windows
+
+Windows 7 and later are supported, older operating systems are not supported
+(and do not work).
+
+Both `ia32` (`x86`) and `x64` (`amd64`) binaries are provided for Windows.
+[Native support for Windows on Arm (`arm64`) devices was added in Electron 6.0.8.](windows-arm.md).
+Running apps packaged with previous versions is possible using the ia32 binary.
+
+### Linux
+
+The prebuilt binaries of Electron are built on Ubuntu 18.04.
+
+Whether the prebuilt binary can run on a distribution depends on whether the
+distribution includes the libraries that Electron is linked to on the building
+platform, so only Ubuntu 18.04 is guaranteed to work, but following platforms
+are also verified to be able to run the prebuilt binaries of Electron:
+
+* Ubuntu 14.04 and newer
+* Fedora 24 and newer
+* Debian 8 and newer

docs/tutorial/window-customization.md

@@ -115,9 +115,9 @@ const win = new BrowserWindow({
 })
 ```
 
-On Windows, you can also specify additional parameters. The color of the overlay and its symbols can be specified by setting `titleBarOverlay` to an object and using the `color` and `symbolColor` properties respectively. The height of the overlay can also be specified with the `height` property.
-
-If a color option is not specified, the color will default to its system color for the window control buttons. Similarly, if the height option is not specified it will default to the default height:
+On Windows, you can also specify the color of the overlay and its symbols by setting
+`titleBarOverlay` to an object with the `color` and `symbolColor` properties. If an option
+is not specified, the color will default to its system color for the window control buttons:
 
 ```javascript title='main.js'
 // on Windows
@@ -126,8 +126,7 @@ const win = new BrowserWindow({
   titleBarStyle: 'hidden',
   titleBarOverlay: {
     color: '#2f3241',
-    symbolColor: '#74b1be',
-    height: 60
+    symbolColor: '#74b1be'
   }
 })
 ```
@@ -136,10 +135,6 @@ const win = new BrowserWindow({
 > color and dimension values from a renderer using a set of readonly
 > [JavaScript APIs][overlay-javascript-apis] and [CSS Environment Variables][overlay-css-env-vars].
 
-### Limitations
-
-* Transparent colors are currently not supported. Progress updates for this feature can be found in PR [#33567](https://github.com/electron/electron/issues/33567).
-
 ## Create transparent windows
 
 By setting the `transparent` option to `true`, you can make a fully transparent window.

docs/tutorial/windows-taskbar.md

@@ -41,9 +41,10 @@ as quoted from [MSDN][msdn-jumplist]:
 > confuse the user who does not expect that portion of the destination list to
 > change.
 
-![Taskbar JumpList](../images/windows-taskbar-jumplist.png)
+![IE](https://i-msdn.sec.s-msft.com/dynimg/IC420539.png)
 
-> NOTE: The screenshot above is an example of general tasks for Microsoft Edge
+> NOTE: The screenshot above is an example of general tasks of
+Internet Explorer
 
 Unlike the dock menu in macOS which is a real menu, user tasks in Windows work
 like application shortcuts. For example, when a user clicks a task, the program
@@ -108,7 +109,7 @@ As quoted from [MSDN][msdn-thumbnail]:
 > For example, Windows Media Player might offer standard media transport controls
 > such as play, pause, mute, and stop.
 
-![Thumbnail toolbar](../images/windows-taskbar-thumbnail-toolbar.png)
+![player](https://i-msdn.sec.s-msft.com/dynimg/IC420540.png)
 
 > NOTE: The screenshot above is an example of thumbnail toolbar of Windows
 Media Player
@@ -175,7 +176,7 @@ As quoted from [MSDN][msdn-icon-overlay]:
 > network status, messenger status, or new mail. The user should not be
 > presented with constantly changing overlays or animations.
 
-![Overlay on taskbar button](../images/windows-taskbar-icon-overlay.png)
+![Overlay on taskbar button](https://i-msdn.sec.s-msft.com/dynimg/IC420441.png)
 
 > NOTE: The screenshot above is an example of overlay on a taskbar button
 

electron_paks.gni

@@ -19,12 +19,14 @@ template("electron_repack_percent") {
     # All sources should also have deps for completeness.
     sources = [
       "$root_gen_dir/components/components_resources_${percent}_percent.pak",
+      "$root_gen_dir/content/app/resources/content_resources_${percent}_percent.pak",
       "$root_gen_dir/third_party/blink/public/resources/blink_scaled_resources_${percent}_percent.pak",
       "$root_gen_dir/ui/resources/ui_resources_${percent}_percent.pak",
     ]
 
     deps = [
       "//components/resources",
+      "//content/app/resources",
       "//third_party/blink/public:scaled_resources_${percent}_percent",
       "//ui/resources",
     ]
@@ -52,8 +54,6 @@ template("electron_extra_paks") {
                            ])
     output = "${invoker.output_dir}/resources.pak"
     sources = [
-      "$root_gen_dir/chrome/browser_resources.pak",
-      "$root_gen_dir/chrome/common_resources.pak",
       "$root_gen_dir/chrome/dev_ui_browser_resources.pak",
       "$root_gen_dir/components/components_resources.pak",
       "$root_gen_dir/content/browser/resources/media/media_internals_resources.pak",
@@ -65,12 +65,11 @@ template("electron_extra_paks") {
       "$root_gen_dir/net/net_resources.pak",
       "$root_gen_dir/third_party/blink/public/resources/blink_resources.pak",
       "$root_gen_dir/third_party/blink/public/resources/inspector_overlay_resources.pak",
+      "$root_gen_dir/ui/resources/webui_resources.pak",
       "$target_gen_dir/electron_resources.pak",
     ]
     deps = [
       "//chrome/browser:dev_ui_browser_resources",
-      "//chrome/browser:resources",
-      "//chrome/common:resources",
       "//components/resources",
       "//content:content_resources",
       "//content:dev_ui_content_resources",
@@ -174,25 +173,19 @@ template("electron_paks") {
     }
 
     source_patterns = [
-      "${root_gen_dir}/chrome/locale_settings_",
       "${root_gen_dir}/chrome/platform_locale_settings_",
-      "${root_gen_dir}/chrome/generated_resources_",
-      "${root_gen_dir}/components/strings/components_locale_settings_",
       "${root_gen_dir}/components/strings/components_strings_",
+      "${root_gen_dir}/third_party/blink/public/strings/blink_accessibility_strings_",
+      "${root_gen_dir}/third_party/blink/public/strings/blink_strings_",
       "${root_gen_dir}/device/bluetooth/strings/bluetooth_strings_",
       "${root_gen_dir}/extensions/strings/extensions_strings_",
       "${root_gen_dir}/services/strings/services_strings_",
-      "${root_gen_dir}/third_party/blink/public/strings/blink_accessibility_strings_",
-      "${root_gen_dir}/third_party/blink/public/strings/blink_strings_",
       "${root_gen_dir}/ui/strings/app_locale_settings_",
       "${root_gen_dir}/ui/strings/ax_strings_",
       "${root_gen_dir}/ui/strings/ui_strings_",
     ]
     deps = [
-      "//chrome/app:generated_resources",
-      "//chrome/app/resources:locale_settings",
       "//chrome/app/resources:platform_locale_settings",
-      "//components/strings:components_locale_settings",
       "//components/strings:components_strings",
       "//device/bluetooth/strings",
       "//extensions/strings",
@@ -208,7 +201,7 @@ template("electron_paks") {
     output_dir = "${invoker.output_dir}/locales"
 
     if (is_mac) {
-      output_locales = locales_as_apple_outputs
+      output_locales = locales_as_mac_outputs
     } else {
       output_locales = platform_pak_locales
     }

electron_resources.grd

@@ -11,8 +11,15 @@
     <output filename="electron_resources.pak" type="data_package" />
   </outputs>
   <release seq="1" allow_pseudo="false">
+    <messages fallback_to_english="true">
+      <!-- TODO(deepak1556): Add translations,
+           check https://www.chromium.org/developers/design-documents/ui-localization -->
+      <part file="electron_strings.grdp" />
+    </messages>
     <includes>
       <include name="IDR_CONTENT_SHELL_DEVTOOLS_DISCOVERY_PAGE" file="${target_gen_dir}/shell_devtools_discovery_page.html" use_base_dir="false" type="BINDATA" />
+      <include name="IDR_PDF_MANIFEST" file="../chrome/browser/resources/pdf/manifest.json" type="BINDATA" />
+      <include name="IDR_CRYPTOTOKEN_MANIFEST" file="../chrome/browser/resources/cryptotoken/manifest.json" type="BINDATA" />
     </includes>
   </release>
 </grit>

electron_strings.grdp

@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="utf-8"?>
+<grit-part>
+  <!-- Windows Caption Buttons -->
+  <message name="IDS_APP_ACCNAME_CLOSE" desc="The accessible name for the Close button.">
+    Close
+  </message>
+  <message name="IDS_APP_ACCNAME_MINIMIZE" desc="The accessible name for the Minimize button.">
+    Minimize
+  </message>
+  <message name="IDS_APP_ACCNAME_MAXIMIZE" desc="The accessible name for the Maximize button.">
+    Maximize
+  </message>
+  <message name="IDS_APP_ACCNAME_RESTORE" desc="The accessible name for the Restore button.">
+    Restore
+  </message>
+
+  <!-- Printing Service -->
+  <message name="IDS_UTILITY_PROCESS_PRINTING_SERVICE_NAME" desc="The name of the utility process used for printing conversions.">
+    Printing Service
+  </message>
+  <message name="IDS_PRINT_INVALID_PRINTER_SETTINGS" desc="Message to display when selected printer is not reachable or its settings are invalid.">
+    The selected printer is not available or not installed correctly. <ph name="BR">&lt;br&gt;</ph> Check your printer or try selecting another printer.
+  </message>
+  <message name="IDS_DEFAULT_PRINT_DOCUMENT_TITLE" desc="Default title for a print document">
+    Untitled Document
+  </message>
+
+  <!-- Desktop Capturer API -->
+  <message name="IDS_DESKTOP_MEDIA_PICKER_SINGLE_SCREEN_NAME" desc="Name for screens in the desktop media picker UI when there is only one monitor.">
+    Entire Screen
+  </message>
+  <message name="IDS_DESKTOP_MEDIA_PICKER_MULTIPLE_SCREEN_NAME" desc="Name for screens in the desktop media picker UI when there are multiple monitors.">
+    {SCREEN_INDEX, plural, =1{Screen #} other{Screen #}}
+  </message>
+
+  <!-- File Select Helper-->
+  <message name="IDS_IMAGE_FILES" desc="The description of the image file extensions in the select file dialog.">
+    Image Files
+  </message>
+  <message name="IDS_AUDIO_FILES" desc="The description of the audio file extensions in the select file dialog.">
+    Audio Files
+  </message>
+  <message name="IDS_VIDEO_FILES" desc="The description of the video file extensions in the select file dialog.">
+    Video Files
+  </message>
+  <message name="IDS_CUSTOM_FILES" desc="The description of the custom file extensions in the select file dialog.">
+    Custom Files
+  </message>
+  <message name="IDS_DEFAULT_DOWNLOAD_FILENAME" desc="Default name for downloaded files when we have no idea what they could be.">
+    download
+  </message>
+
+  <!-- Picture-in-Picture -->
+  <if expr="is_macosx">
+    <message name="IDS_PICTURE_IN_PICTURE_TITLE_TEXT" desc="Title of the Picture-in-Picture window. This appears in the system tray and window header.">
+      Picture in Picture
+    </message>
+  </if>
+  <if expr="not is_macosx">
+    <message name="IDS_PICTURE_IN_PICTURE_TITLE_TEXT" desc="Title of the Picture-in-Picture window. This appears in the system tray and window header.">
+      Picture in picture
+    </message>
+  </if>
+  <message name="IDS_PICTURE_IN_PICTURE_PAUSE_CONTROL_TEXT" desc="Text label of the pause control button. The button appears when the user hovers over the Picture-in-Picture window and the video is currently playing.">
+    Pause
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_PLAY_CONTROL_TEXT" desc="Text label of the play control button. The button appears when the user hovers over the Picture-in-Picture window and the video is currently paused.">
+    Play
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_REPLAY_CONTROL_TEXT" desc="Text label of the replay control button. The button appears when the user hovers over the Picture-in-Picture window and the video is ended.">
+    Play from the beginning
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_BACK_TO_TAB_CONTROL_TEXT" desc="Text label of the back to tab control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Back to video player
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_MUTE_CONTROL_TEXT" desc="Text label of the mute control button. The button appears when the user hovers over the Picture-in-Picture window and the video is currently unmuted.">
+    Mute
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_UNMUTE_CONTROL_TEXT" desc="Text label of the mute control button. The button appears when the user hovers over the Picture-in-Picture window and the video is currently muted.">
+    Unmute
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_SKIP_AD_CONTROL_TEXT" desc="Text label of the skip ad control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Skip Ad
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_MUTE_MICROPHONE_TEXT" desc="Text label of the mute microphone control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Mute microphone
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_UNMUTE_MICROPHONE_TEXT" desc="Text label of the unmute microphone control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Unmute microphone
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_TURN_ON_CAMERA_TEXT" desc="Text label of the turn on camera control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Turn on camera
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_TURN_OFF_CAMERA_TEXT" desc="Text label of the turn off camera control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Turn off camera
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_HANG_UP_TEXT" desc="Text label of the hang up control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Hang up
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_CLOSE_CONTROL_TEXT" desc="Text label of the close control button. The button appears when the user hovers over the Picture-in-Picture window.">
+    Close
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_RESIZE_HANDLE_TEXT" desc="Text label of the resize handle. The button appears when the user hovers over the Picture-in-Picture window.">
+    Resize
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_PLAY_PAUSE_CONTROL_ACCESSIBLE_TEXT" desc="Accessible text label used for the controls button in the Picture-in-Picture window. The button toggles between play and pause controls.">
+    Toggle video to play or pause
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_MUTE_CONTROL_ACCESSIBLE_TEXT" desc="Accessible text label used for the controls button in the Picture-in-Picture window. The button toggles mute state.">
+    Toggle mute
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_NEXT_TRACK_CONTROL_ACCESSIBLE_TEXT" desc="Accessible text label used for the controls button in the Picture-in-Picture window. The button invokes next track action.">
+    Next track
+  </message>
+  <message name="IDS_PICTURE_IN_PICTURE_PREVIOUS_TRACK_CONTROL_ACCESSIBLE_TEXT" desc="Accessible text label used for the controls button in the Picture-in-Picture window. The button invokes previous track action.">
+    Previous track
+  </message>
+  <message name="IDS_SPELLCHECK_DICTIONARY" use_name_for_id="true">
+    en-US
+  </message>
+  <message name="IDS_ACCEPT_LANGUAGES" use_name_for_id="true">
+    en-US,en
+  </message>
+  <if expr="is_win">
+    <message name="IDS_UTILITY_PROCESS_UTILITY_WIN_NAME" desc="The name of the utility process used to handle Windows utility operations.">
+      Windows Utilities
+    </message>
+  </if>
+  <message name="IDS_DOWNLOAD_MORE_ACTIONS"
+          desc="Tooltip of a button on the downloads page that shows a menu with actions like 'Open downloads folder' or 'Clear all'">
+    More actions
+  </message>
+  <!-- Badging -->
+  <message name="IDS_SATURATED_BADGE_CONTENT" desc="The content to display when the application's badge is too large to display to indicate that the badge is more than a given maximum. This string should be as short as possible, preferably only one character beyond the content">
+    <ph name="MAXIMUM_VALUE">$1<ex>99</ex></ph>+
+  </message>
+  <message name="IDS_BADGE_UNREAD_NOTIFICATIONS_SATURATED" desc="The accessibility text which will be read by a screen reader when the notification count is too large to display (e.g. greater than 99).">
+    {MAX_UNREAD_NOTIFICATIONS, plural, =1 {More than 1 unread notification} other {More than # unread notifications}}
+  </message>
+  <message name="IDS_BADGE_UNREAD_NOTIFICATIONS_UNSPECIFIED" desc="The accessibility text which will be read by a screen reader when there are some unspecified number of notifications, or user attention is required">
+    Unread Notifications
+  </message>
+  <message name="IDS_BADGE_UNREAD_NOTIFICATIONS" desc="The accessibility text which will be read by a screen reader when there are notifcatications">
+    {UNREAD_NOTIFICATIONS, plural, =1 {1 Unread Notification} other {# Unread Notifications}}
+  </message>
+  <message name="IDS_HID_CHOOSER_ITEM_WITHOUT_NAME" desc="User option displaying the device IDs for a Human Interface Device (HID) without a device name.">
+        Unknown Device (<ph name="DEVICE_ID">$1<ex>1234:abcd</ex></ph>) </message>
+  <if expr="is_win">
+    <then>
+      <message name="IDS_AX_UNLABELED_IMAGE_ROLE_DESCRIPTION" desc="Accessibility role description for a graphic (image) on a web page or PDF that does not have a description for blind users." is_accessibility_with_no_ui="true">
+        Unlabeled graphic
+      </message>
+    </then>
+    <else>
+      <message name="IDS_AX_UNLABELED_IMAGE_ROLE_DESCRIPTION" desc="Accessibility role description for an image on a web page or PDF that does not have a description for blind users." is_accessibility_with_no_ui="true">
+        Unlabeled image
+      </message>
+    </else>
+  </if>
+</grit-part>

filenames.gni

@@ -105,8 +105,6 @@ filenames = {
     "shell/browser/ui/win/notify_icon.h",
     "shell/browser/ui/win/taskbar_host.cc",
     "shell/browser/ui/win/taskbar_host.h",
-    "shell/browser/win/dark_mode.cc",
-    "shell/browser/win/dark_mode.h",
     "shell/browser/win/scoped_hstring.cc",
     "shell/browser/win/scoped_hstring.h",
     "shell/common/api/electron_api_native_image_win.cc",
@@ -167,8 +165,6 @@ filenames = {
     "shell/browser/ui/cocoa/electron_native_widget_mac.mm",
     "shell/browser/ui/cocoa/electron_ns_window_delegate.h",
     "shell/browser/ui/cocoa/electron_ns_window_delegate.mm",
-    "shell/browser/ui/cocoa/electron_ns_panel.h",
-    "shell/browser/ui/cocoa/electron_ns_panel.mm",
     "shell/browser/ui/cocoa/electron_ns_window.h",
     "shell/browser/ui/cocoa/electron_ns_window.mm",
     "shell/browser/ui/cocoa/electron_preview_item.h",
@@ -570,7 +566,6 @@ filenames = {
     "shell/common/gin_converters/gfx_converter.h",
     "shell/common/gin_converters/guid_converter.h",
     "shell/common/gin_converters/gurl_converter.h",
-    "shell/common/gin_converters/hid_device_info_converter.h",
     "shell/common/gin_converters/image_converter.cc",
     "shell/common/gin_converters/image_converter.h",
     "shell/common/gin_converters/message_box_converter.cc",

filenames.hunspell.gni

@@ -7,16 +7,11 @@ hunspell_dictionaries = [
   "//third_party/hunspell_dictionaries/da-DK-3-0.bdic",
   "//third_party/hunspell_dictionaries/de-DE-3-0.bdic",
   "//third_party/hunspell_dictionaries/el-GR-3-0.bdic",
-  "//third_party/hunspell_dictionaries/en-AU-10-0.bdic",
-  "//third_party/hunspell_dictionaries/en-AU-10-1.bdic",
-  "//third_party/hunspell_dictionaries/en-CA-10-0.bdic",
-  "//third_party/hunspell_dictionaries/en-CA-10-1.bdic",
-  "//third_party/hunspell_dictionaries/en-GB-10-0.bdic",
-  "//third_party/hunspell_dictionaries/en-GB-10-1.bdic",
-  "//third_party/hunspell_dictionaries/en-GB-oxendict-10-0.bdic",
-  "//third_party/hunspell_dictionaries/en-GB-oxendict-10-1.bdic",
-  "//third_party/hunspell_dictionaries/en-US-10-0.bdic",
-  "//third_party/hunspell_dictionaries/en-US-10-1.bdic",
+  "//third_party/hunspell_dictionaries/en-AU-9-0.bdic",
+  "//third_party/hunspell_dictionaries/en-CA-9-0.bdic",
+  "//third_party/hunspell_dictionaries/en-GB-9-0.bdic",
+  "//third_party/hunspell_dictionaries/en-GB-oxendict-9-0.bdic",
+  "//third_party/hunspell_dictionaries/en-US-9-0.bdic",
   "//third_party/hunspell_dictionaries/es-ES-3-0.bdic",
   "//third_party/hunspell_dictionaries/et-EE-3-0.bdic",
   "//third_party/hunspell_dictionaries/fa-IR-9-0.bdic",
@@ -51,7 +46,6 @@ hunspell_dictionaries = [
   "//third_party/hunspell_dictionaries/tg-TG-5-0.bdic",
   "//third_party/hunspell_dictionaries/tr-TR-4-0.bdic",
   "//third_party/hunspell_dictionaries/uk-UA-4-0.bdic",
-  "//third_party/hunspell_dictionaries/uk-UA-5-0.bdic",
   "//third_party/hunspell_dictionaries/vi-VN-3-0.bdic",
   "//third_party/hunspell_dictionaries/xx-XX-3-0.bdic",
 ]

filenames.libcxxabi.gni

@@ -1,5 +1,4 @@
 libcxxabi_headers = [
-  "//buildtools/third_party/libc++abi/trunk/include/CMakeLists.txt",
   "//buildtools/third_party/libc++abi/trunk/include/__cxxabi_config.h",
   "//buildtools/third_party/libc++abi/trunk/include/cxxabi.h",
 ]

lib/browser/api/app.ts

@@ -1,6 +1,6 @@
 import * as fs from 'fs';
 
-import { Menu, deprecate } from 'electron/main';
+import { Menu } from 'electron/main';
 
 const bindings = process._linkedBinding('electron_browser_app');
 const commandLine = process._linkedBinding('electron_common_command_line');
@@ -111,7 +111,3 @@ for (const name of events) {
     webContents.emit(name, event, ...args);
   });
 }
-
-// Deprecation.
-deprecate.event(app, 'gpu-process-crashed', 'child-process-gone');
-deprecate.event(app, 'renderer-process-crashed', 'render-process-gone');

lib/browser/api/native-theme.ts

@@ -1,3 +1,3 @@
-const { nativeTheme } = process._linkedBinding('electron_browser_native_theme');
+const { nativeTheme } = process._linkedBinding('electron_common_native_theme');
 
 module.exports = nativeTheme;

lib/browser/api/net.ts

@@ -36,14 +36,17 @@ const discardableDuplicateHeaders = new Set([
 ]);
 
 class IncomingMessage extends Readable {
-  _shouldPush: boolean = false;
-  _data: (Buffer | null)[] = [];
+  _shouldPush: boolean;
+  _data: (Buffer | null)[];
   _responseHead: NodeJS.ResponseHead;
-  _resume: (() => void) | null = null;
+  _resume: (() => void) | null;
 
   constructor (responseHead: NodeJS.ResponseHead) {
     super();
+    this._shouldPush = false;
+    this._data = [];
     this._responseHead = responseHead;
+    this._resume = null;
   }
 
   get statusCode () {
@@ -195,7 +198,7 @@ class ChunkedBodyStream extends Writable {
     this._downstream = pipe;
     if (this._pendingChunk) {
       const doneWriting = (maybeError: Error | void) => {
-        // If the underlying request has been aborted, we honestly don't care about the error
+        // If the underlying request has been aborted, we honeslty don't care about the error
         // all work should cease as soon as we abort anyway, this error is probably a
         // "mojo pipe disconnected" error (code=9)
         if (this._clientRequest._aborted) return;

lib/browser/api/notification.ts

@@ -1,7 +1,7 @@
 const {
   Notification: ElectronNotification,
   isSupported
-} = process._linkedBinding('electron_browser_notification');
+} = process._linkedBinding('electron_common_notification');
 
 ElectronNotification.isSupported = isSupported;
 

lib/browser/api/screen.ts

@@ -1,6 +1,6 @@
 import { EventEmitter } from 'events';
 
-const { createScreen } = process._linkedBinding('electron_browser_screen');
+const { createScreen } = process._linkedBinding('electron_common_screen');
 
 let _screen: Electron.Screen;
 

lib/browser/api/web-contents.ts

@@ -492,17 +492,13 @@ WebContents.prototype.loadURL = function (url, options) {
   return p;
 };
 
-WebContents.prototype.setWindowOpenHandler = function (handler: (details: Electron.HandlerDetails) => ({action: 'deny'} | {action: 'allow', overrideBrowserWindowOptions?: BrowserWindowConstructorOptions, outlivesOpener?: boolean})) {
+WebContents.prototype.setWindowOpenHandler = function (handler: (details: Electron.HandlerDetails) => ({action: 'allow'} | {action: 'deny', overrideBrowserWindowOptions?: BrowserWindowConstructorOptions})) {
   this._windowOpenHandler = handler;
 };
 
-WebContents.prototype._callWindowOpenHandler = function (event: Electron.Event, details: Electron.HandlerDetails): {browserWindowConstructorOptions: BrowserWindowConstructorOptions | null, outlivesOpener: boolean} {
-  const defaultResponse = {
-    browserWindowConstructorOptions: null,
-    outlivesOpener: false
-  };
+WebContents.prototype._callWindowOpenHandler = function (event: Electron.Event, details: Electron.HandlerDetails): BrowserWindowConstructorOptions | null {
   if (!this._windowOpenHandler) {
-    return defaultResponse;
+    return null;
   }
 
   const response = this._windowOpenHandler(details);
@@ -510,34 +506,28 @@ WebContents.prototype._callWindowOpenHandler = function (event: Electron.Event,
   if (typeof response !== 'object') {
     event.preventDefault();
     console.error(`The window open handler response must be an object, but was instead of type '${typeof response}'.`);
-    return defaultResponse;
+    return null;
   }
 
   if (response === null) {
     event.preventDefault();
     console.error('The window open handler response must be an object, but was instead null.');
-    return defaultResponse;
+    return null;
   }
 
   if (response.action === 'deny') {
     event.preventDefault();
-    return defaultResponse;
+    return null;
   } else if (response.action === 'allow') {
     if (typeof response.overrideBrowserWindowOptions === 'object' && response.overrideBrowserWindowOptions !== null) {
-      return {
-        browserWindowConstructorOptions: response.overrideBrowserWindowOptions,
-        outlivesOpener: typeof response.outlivesOpener === 'boolean' ? response.outlivesOpener : false
-      };
+      return response.overrideBrowserWindowOptions;
     } else {
-      return {
-        browserWindowConstructorOptions: {},
-        outlivesOpener: typeof response.outlivesOpener === 'boolean' ? response.outlivesOpener : false
-      };
+      return {};
     }
   } else {
     event.preventDefault();
     console.error('The window open handler response must be an object with an \'action\' property of \'allow\' or \'deny\'.');
-    return defaultResponse;
+    return null;
   }
 };
 
@@ -572,7 +562,7 @@ const loggingEnabled = () => {
 // Add JavaScript wrappers for WebContents class.
 WebContents.prototype._init = function () {
   const prefs = this.getLastWebPreferences() || {};
-  if (!prefs.nodeIntegration && prefs.preload != null && prefs.sandbox == null) {
+  if (!prefs.nodeIntegration && (prefs.preload != null || prefs.preloadURL != null) && prefs.sandbox == null) {
     deprecate.log('The default sandbox option for windows without nodeIntegration is changing. Presently, by default, when a window has a preload script, it defaults to being unsandboxed. In Electron 20, this default will be changing, and all windows that have nodeIntegration: false (which is the default) will be sandboxed by default. If your preload script doesn\'t use Node, no action is needed. If your preload script does use Node, either refactor it to move Node usage to the main process, or specify sandbox: false in your WebPreferences.');
   }
   // Read off the ID at construction time, so that it's accessible even after
@@ -668,15 +658,14 @@ WebContents.prototype._init = function () {
         disposition
       };
 
-      let result: ReturnType<typeof this._callWindowOpenHandler>;
+      let options: ReturnType<typeof this._callWindowOpenHandler>;
       try {
-        result = this._callWindowOpenHandler(event, details);
+        options = this._callWindowOpenHandler(event, details);
       } catch (err) {
         event.preventDefault();
         throw err;
       }
 
-      const options = result.browserWindowConstructorOptions;
       if (!event.defaultPrevented) {
         openGuestWindow({
           event,
@@ -685,14 +674,12 @@ WebContents.prototype._init = function () {
           referrer,
           postData,
           overrideBrowserWindowOptions: options || {},
-          windowOpenArgs: details,
-          outlivesOpener: result.outlivesOpener
+          windowOpenArgs: details
         });
       }
     });
 
     let windowOpenOverriddenOptions: BrowserWindowConstructorOptions | null = null;
-    let windowOpenOutlivesOpenerOption: boolean = false;
     this.on('-will-add-new-contents' as any, (event: ElectronInternal.Event, url: string, frameName: string, rawFeatures: string, disposition: Electron.HandlerDetails['disposition'], referrer: Electron.Referrer, postData: PostData) => {
       const postBody = postData ? {
         data: postData,
@@ -715,8 +702,7 @@ WebContents.prototype._init = function () {
         throw err;
       }
 
-      windowOpenOutlivesOpenerOption = result.outlivesOpener;
-      windowOpenOverriddenOptions = result.browserWindowConstructorOptions;
+      windowOpenOverriddenOptions = result;
       if (!event.defaultPrevented) {
         const secureOverrideWebPreferences = windowOpenOverriddenOptions ? {
           // Allow setting of backgroundColor as a webPreference even though
@@ -747,10 +733,7 @@ WebContents.prototype._init = function () {
       _userGesture: boolean, _left: number, _top: number, _width: number, _height: number, url: string, frameName: string,
       referrer: Electron.Referrer, rawFeatures: string, postData: PostData) => {
       const overriddenOptions = windowOpenOverriddenOptions || undefined;
-      const outlivesOpener = windowOpenOutlivesOpenerOption;
       windowOpenOverriddenOptions = null;
-      // false is the default
-      windowOpenOutlivesOpenerOption = false;
 
       if ((disposition !== 'foreground-tab' && disposition !== 'new-window' &&
            disposition !== 'background-tab')) {
@@ -770,8 +753,7 @@ WebContents.prototype._init = function () {
           url,
           frameName,
           features: rawFeatures
-        },
-        outlivesOpener
+        }
       });
     });
   }

lib/browser/guest-view-manager.ts

@@ -15,7 +15,6 @@ interface GuestInstance {
 
 const webViewManager = process._linkedBinding('electron_browser_web_view_manager');
 const eventBinding = process._linkedBinding('electron_browser_event');
-const netBinding = process._linkedBinding('electron_browser_net');
 
 const supportedWebViewEvents = Object.keys(webViewEvents);
 
@@ -50,7 +49,7 @@ function makeWebPreferences (embedder: Electron.WebContents, params: Record<stri
   };
 
   if (params.preload) {
-    webPreferences.preload = netBinding.fileURLToFilePath(params.preload);
+    webPreferences.preloadURL = params.preload;
   }
 
   // Security options that guest will always inherit from embedder

lib/browser/guest-window-manager.ts

@@ -5,7 +5,7 @@
  * out-of-process (cross-origin) are created here. "Embedder" roughly means
  * "parent."
  */
-import { BrowserWindow, deprecate } from 'electron/main';
+import { BrowserWindow } from 'electron/main';
 import type { BrowserWindowConstructorOptions, Referrer, WebContents, LoadURLOptions } from 'electron/main';
 import { parseFeatures } from '@electron/internal/browser/parse-features-string';
 
@@ -29,7 +29,7 @@ const getGuestWindowByFrameName = (name: string) => frameNamesToWindow.get(name)
  * user to preventDefault() on the passed event (which ends up calling
  * DestroyWebContents).
  */
-export function openGuestWindow ({ event, embedder, guest, referrer, disposition, postData, overrideBrowserWindowOptions, windowOpenArgs, outlivesOpener }: {
+export function openGuestWindow ({ event, embedder, guest, referrer, disposition, postData, overrideBrowserWindowOptions, windowOpenArgs }: {
   event: { sender: WebContents, defaultPrevented: boolean },
   embedder: WebContents,
   guest?: WebContents,
@@ -38,10 +38,9 @@ export function openGuestWindow ({ event, embedder, guest, referrer, disposition
   postData?: PostData,
   overrideBrowserWindowOptions?: BrowserWindowConstructorOptions,
   windowOpenArgs: WindowOpenArgs,
-  outlivesOpener: boolean,
 }): BrowserWindow | undefined {
   const { url, frameName, features } = windowOpenArgs;
-  const browserWindowOptions = makeBrowserWindowOptions({
+  const { options: browserWindowOptions } = makeBrowserWindowOptions({
     embedder,
     features,
     overrideOptions: overrideBrowserWindowOptions
@@ -78,20 +77,7 @@ export function openGuestWindow ({ event, embedder, guest, referrer, disposition
     ...browserWindowOptions
   });
 
-  if (!guest) {
-    // When we open a new window from a link (via OpenURLFromTab),
-    // the browser process is responsible for initiating navigation
-    // in the new window.
-    window.loadURL(url, {
-      httpReferrer: referrer,
-      ...(postData && {
-        postData,
-        extraHeaders: formatPostDataHeaders(postData as Electron.UploadRawData[])
-      })
-    });
-  }
-
-  handleWindowLifecycleEvents({ embedder, frameName, guest: window, outlivesOpener });
+  handleWindowLifecycleEvents({ embedder, frameName, guest: window });
 
   embedder.emit('did-create-window', window, { url, frameName, options: browserWindowOptions, disposition, referrer, postData });
 
@@ -104,11 +90,10 @@ export function openGuestWindow ({ event, embedder, guest, referrer, disposition
  * too is the guest destroyed; this is Electron convention and isn't based in
  * browser behavior.
  */
-const handleWindowLifecycleEvents = function ({ embedder, guest, frameName, outlivesOpener }: {
+const handleWindowLifecycleEvents = function ({ embedder, guest, frameName }: {
   embedder: WebContents,
   guest: BrowserWindow,
-  frameName: string,
-  outlivesOpener: boolean
+  frameName: string
 }) {
   const closedByEmbedder = function () {
     guest.removeListener('closed', closedByUser);
@@ -116,14 +101,9 @@ const handleWindowLifecycleEvents = function ({ embedder, guest, frameName, outl
   };
 
   const closedByUser = function () {
-    // Embedder might have been closed
-    if (!embedder.isDestroyed() && !outlivesOpener) {
-      embedder.removeListener('current-render-view-deleted' as any, closedByEmbedder);
-    }
+    embedder.removeListener('current-render-view-deleted' as any, closedByEmbedder);
   };
-  if (!outlivesOpener) {
-    embedder.once('current-render-view-deleted' as any, closedByEmbedder);
-  }
+  embedder.once('current-render-view-deleted' as any, closedByEmbedder);
   guest.once('closed', closedByUser);
 
   if (frameName) {
@@ -155,10 +135,6 @@ function emitDeprecatedNewWindowEvent ({ event, embedder, guest, windowOpenArgs,
     ...parseContentTypeFormat(postData)
   } : null;
 
-  if (embedder.listenerCount('new-window') > 0) {
-    deprecate.log('The new-window event is deprecated and will be removed. Please use contents.setWindowOpenHandler() instead.');
-  }
-
   embedder.emit(
     'new-window',
     event,
@@ -187,8 +163,7 @@ function emitDeprecatedNewWindowEvent ({ event, embedder, guest, windowOpenArgs,
       handleWindowLifecycleEvents({
         embedder: event.sender,
         guest: newGuest,
-        frameName,
-        outlivesOpener: false
+        frameName
       });
     }
     return true;
@@ -215,21 +190,23 @@ function makeBrowserWindowOptions ({ embedder, features, overrideOptions }: {
   const { options: parsedOptions, webPreferences: parsedWebPreferences } = parseFeatures(features);
 
   return {
-    show: true,
-    width: 800,
-    height: 600,
-    ...parsedOptions,
-    ...overrideOptions,
-    // Note that for normal code path an existing WebContents created by
-    // Chromium will be used, with web preferences parsed in the
-    // |-will-add-new-contents| event.
-    // The |webPreferences| here is only used by the |new-window| event.
-    webPreferences: makeWebPreferences({
-      embedder,
-      insecureParsedWebPreferences: parsedWebPreferences,
-      secureOverrideWebPreferences: overrideOptions && overrideOptions.webPreferences
-    })
-  } as Electron.BrowserViewConstructorOptions;
+    options: {
+      show: true,
+      width: 800,
+      height: 600,
+      ...parsedOptions,
+      ...overrideOptions,
+      // Note that for normal code path an existing WebContents created by
+      // Chromium will be used, with web preferences parsed in the
+      // |-will-add-new-contents| event.
+      // The |webPreferences| here is only used by the |new-window| event.
+      webPreferences: makeWebPreferences({
+        embedder,
+        insecureParsedWebPreferences: parsedWebPreferences,
+        secureOverrideWebPreferences: overrideOptions && overrideOptions.webPreferences
+      })
+    } as Electron.BrowserViewConstructorOptions
+  };
 }
 
 export function makeWebPreferences ({ embedder, secureOverrideWebPreferences = {}, insecureParsedWebPreferences: parsedWebPreferences = {} }: {
@@ -258,15 +235,6 @@ export function makeWebPreferences ({ embedder, secureOverrideWebPreferences = {
   };
 }
 
-function formatPostDataHeaders (postData: PostData) {
-  if (!postData) return;
-
-  const { contentType, boundary } = parseContentTypeFormat(postData);
-  if (boundary != null) { return `content-type: ${contentType}; boundary=${boundary}`; }
-
-  return `content-type: ${contentType}`;
-}
-
 const MULTIPART_CONTENT_TYPE = 'multipart/form-data';
 const URL_ENCODED_CONTENT_TYPE = 'application/x-www-form-urlencoded';
 

lib/browser/rpc-server.ts

@@ -68,10 +68,6 @@ ipcMainUtils.handleSync(IPC_MESSAGES.BROWSER_SANDBOX_LOAD, async function (event
   };
 });
 
-ipcMainUtils.handleSync(IPC_MESSAGES.BROWSER_NONSANDBOX_LOAD, function (event) {
-  return { preloadPaths: event.sender._getPreloadPaths() };
-});
-
 ipcMainInternal.on(IPC_MESSAGES.BROWSER_PRELOAD_ERROR, function (event, preloadPath: string, error: Error) {
   event.sender.emit('preload-error', event, preloadPath, error);
 });

lib/common/ipc-messages.ts

@@ -3,7 +3,6 @@ export const enum IPC_MESSAGES {
   BROWSER_GET_LAST_WEB_PREFERENCES = 'BROWSER_GET_LAST_WEB_PREFERENCES',
   BROWSER_PRELOAD_ERROR = 'BROWSER_PRELOAD_ERROR',
   BROWSER_SANDBOX_LOAD = 'BROWSER_SANDBOX_LOAD',
-  BROWSER_NONSANDBOX_LOAD = 'BROWSER_NONSANDBOX_LOAD',
   BROWSER_WINDOW_CLOSE = 'BROWSER_WINDOW_CLOSE',
   BROWSER_GET_PROCESS_MEMORY_INFO = 'BROWSER_GET_PROCESS_MEMORY_INFO',
 

lib/renderer/init.ts

@@ -2,7 +2,6 @@ import * as path from 'path';
 import { IPC_MESSAGES } from '@electron/internal/common/ipc-messages';
 
 import type * as ipcRendererInternalModule from '@electron/internal/renderer/ipc-renderer-internal';
-import type * as ipcRendererUtilsModule from '@electron/internal/renderer/ipc-renderer-internal-utils';
 
 const Module = require('module');
 
@@ -39,7 +38,6 @@ require('../common/reset-search-paths');
 require('@electron/internal/common/init');
 
 const { ipcRendererInternal } = require('@electron/internal/renderer/ipc-renderer-internal') as typeof ipcRendererInternalModule;
-const ipcRendererUtils = require('@electron/internal/renderer/ipc-renderer-internal-utils') as typeof ipcRendererUtilsModule;
 
 process.getProcessMemoryInfo = () => {
   return ipcRendererInternal.invoke<Electron.ProcessMemoryInfo>(IPC_MESSAGES.BROWSER_GET_PROCESS_MEMORY_INFO);
@@ -50,8 +48,15 @@ const { hasSwitch, getSwitchValue } = process._linkedBinding('electron_common_co
 const { mainFrame } = process._linkedBinding('electron_renderer_web_frame');
 
 const nodeIntegration = mainFrame.getWebPreference('nodeIntegration');
+const preloadScript = mainFrame.getWebPreference('preload');
+const preloadScripts = mainFrame.getWebPreference('preloadScripts');
 const appPath = hasSwitch('app-path') ? getSwitchValue('app-path') : null;
 
+// The webContents preload script is loaded after the session preload scripts.
+if (preloadScript) {
+  preloadScripts.push(preloadScript);
+}
+
 // Common renderer initialization
 require('@electron/internal/renderer/common-init');
 
@@ -122,9 +127,8 @@ if (nodeIntegration) {
   }
 }
 
-const { preloadPaths } = ipcRendererUtils.invokeSync(IPC_MESSAGES.BROWSER_NONSANDBOX_LOAD);
 // Load the preload scripts.
-for (const preloadScript of preloadPaths) {
+for (const preloadScript of preloadScripts) {
   try {
     Module._load(preloadScript);
   } catch (error) {

lib/renderer/security-warnings.ts

@@ -1,8 +1,7 @@
+import { webFrame } from 'electron';
 import { ipcRendererInternal } from '@electron/internal/renderer/ipc-renderer-internal';
 import { IPC_MESSAGES } from '@electron/internal/common/ipc-messages';
 
-const { mainFrame: webFrame } = process._linkedBinding('electron_renderer_web_frame');
-
 let shouldLog: boolean | null = null;
 
 const { platform, execPath, env } = process;

npm/install.js

@@ -70,8 +70,17 @@ function isInstalled () {
 
 // unzips and makes path.txt point at the correct executable
 function extractFile (zipPath) {
-  return extract(zipPath, { dir: path.join(__dirname, 'dist') })
-    .then(() => fs.promises.writeFile(path.join(__dirname, 'path.txt'), platformPath));
+  return new Promise((resolve, reject) => {
+    extract(zipPath, { dir: path.join(__dirname, 'dist') }, err => {
+      if (err) return reject(err);
+
+      fs.writeFile(path.join(__dirname, 'path.txt'), platformPath, err => {
+        if (err) return reject(err);
+
+        resolve();
+      });
+    });
+  });
 }
 
 function getPlatformPath () {

npm/package.json

@@ -8,11 +8,11 @@
     "postinstall": "node install.js"
   },
   "dependencies": {
-    "@electron/get": "^1.14.1",
+    "@electron/get": "^1.13.0",
     "@types/node": "^16.11.26",
-    "extract-zip": "^2.0.1"
+    "extract-zip": "^1.0.3"
   },
   "engines": {
-    "node": ">= 10.17.0"
+    "node": ">= 8.6"
   }
 }

package.json

@@ -1,11 +1,11 @@
 {
   "name": "electron",
-  "version": "20.0.0-beta.4",
+  "version": "18.3.5",
   "repository": "https://github.com/electron/electron",
   "description": "Build cross platform desktop apps with JavaScript, HTML, and CSS",
   "devDependencies": {
     "@azure/storage-blob": "^12.9.0",
-    "@electron/docs-parser": "^0.12.4",
+    "@electron/docs-parser": "^0.12.3",
     "@electron/typescript-definitions": "^8.9.5",
     "@octokit/auth-app": "^2.10.0",
     "@octokit/rest": "^18.0.3",
@@ -54,7 +54,7 @@
     "lint-staged": "^10.2.11",
     "markdownlint": "^0.21.1",
     "markdownlint-cli": "^0.25.0",
-    "minimist": "^1.2.6",
+    "minimist": "^1.2.5",
     "null-loader": "^4.0.0",
     "pre-flight": "^1.1.0",
     "remark-cli": "^10.0.0",
@@ -77,7 +77,7 @@
   "scripts": {
     "asar": "asar",
     "generate-version-json": "node script/generate-version-json.js",
-    "lint": "node ./script/lint.js && npm run lint:docs",
+    "lint": "node ./script/lint.js && npm run lint:clang-format && npm run lint:docs",
     "lint:js": "node ./script/lint.js --js",
     "lint:clang-format": "python3 script/run-clang-format.py -r -c shell/ || (echo \"\\nCode not formatted correctly.\" && exit 1)",
     "lint:clang-tidy": "ts-node ./script/run-clang-tidy.ts",
@@ -94,7 +94,6 @@
     "gn-typescript-definitions": "npm run create-typescript-definitions && shx cp electron.d.ts",
     "pre-flight": "pre-flight",
     "gn-check": "node ./script/gn-check.js",
-    "gn-format": "python3 script/run-gn-format.py",
     "precommit": "lint-staged",
     "preinstall": "node -e 'process.exit(0)'",
     "prepack": "check-for-leaks",
@@ -125,7 +124,7 @@
     ],
     "*.{gn,gni}": [
       "npm run gn-check",
-      "npm run gn-format"
+      "python3 script/run-gn-format.py"
     ],
     "*.py": [
       "node script/lint.js --py --fix --only --"
@@ -142,8 +141,5 @@
     "DEPS": [
       "node script/gen-hunspell-filenames.js"
     ]
-  },
-  "resolutions": {
-    "nan": "nodejs/nan#16fa32231e2ccd89d2804b3f765319128b20c4ac"
   }
 }

patches/angle/.patches

@@ -0,0 +1,4 @@
+cherry-pick-9768648fffc9.patch
+cherry-pick-801b904aea7d.patch
+cherry-pick-03aa5ae75c29.patch
+cherry-pick-6661eb4900da.patch

patches/angle/cherry-pick-03aa5ae75c29.patch

@@ -0,0 +1,76 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Geoff Lang <geofflang@google.com>
+Date: Wed, 1 Jun 2022 11:22:42 -0400
+Subject: M102: Ignore eglBind/ReleaseTexImage calls for lost contexts.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+eglBindTexImage and eglReleaseTexImage no-op when no context is
+current. Extend this to lost contexts to match the behaviour of making
+a GL call on a lost context.
+
+This avoids potential unexpected bad accesses in the backends.
+
+Bug: chromium:1316578
+Change-Id: I7b309c297e0c803019720733dee2950abb4c4b5f
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3683869
+Reviewed-by: Jamie Madill <jmadill@chromium.org>
+Reviewed-by: Alexis Hétu <sugoi@google.com>
+Reviewed-by: Alexis Hétu <sugoi@chromium.org>
+Commit-Queue: Geoff Lang <geofflang@chromium.org>
+(cherry picked from commit bfab7e60a15dc6f72e34406d3f2a3996cd8d0be2)
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3691180
+
+diff --git a/src/libANGLE/validationEGL.cpp b/src/libANGLE/validationEGL.cpp
+index 7e4b3adb8db7ea32c98228155e0a702796f0da4c..4309fd84e74fbb4a21edfb9b90bfc1fcda5a9d4a 100644
+--- a/src/libANGLE/validationEGL.cpp
++++ b/src/libANGLE/validationEGL.cpp
+@@ -4863,7 +4863,7 @@ bool ValidateBindTexImage(const ValidationContext *val,
+     }
+ 
+     gl::Context *context = val->eglThread->getContext();
+-    if (context)
++    if (context && !context->isContextLost())
+     {
+         gl::TextureType type = egl_gl::EGLTextureTargetToTextureType(surface->getTextureTarget());
+         gl::Texture *textureObject = context->getTextureByType(type);
+diff --git a/src/libGLESv2/egl_stubs.cpp b/src/libGLESv2/egl_stubs.cpp
+index 0554b7f40c65d6a2690380fe7483818886e20533..645f53ba038e3a5ad580eead0d9135cd274c57f8 100644
+--- a/src/libGLESv2/egl_stubs.cpp
++++ b/src/libGLESv2/egl_stubs.cpp
+@@ -61,7 +61,7 @@ EGLBoolean BindTexImage(Thread *thread, Display *display, Surface *eglSurface, E
+                          GetDisplayIfValid(display), EGL_FALSE);
+ 
+     gl::Context *context = thread->getContext();
+-    if (context)
++    if (context && !context->isContextLost())
+     {
+         gl::TextureType type =
+             egl_gl::EGLTextureTargetToTextureType(eglSurface->getTextureTarget());
+@@ -573,15 +573,18 @@ EGLBoolean ReleaseTexImage(Thread *thread, Display *display, Surface *eglSurface
+ {
+     ANGLE_EGL_TRY_RETURN(thread, display->prepareForCall(), "eglReleaseTexImage",
+                          GetDisplayIfValid(display), EGL_FALSE);
+-    gl::Texture *texture = eglSurface->getBoundTexture();
+-
+-    if (texture)
++    gl::Context *context = thread->getContext();
++    if (context && !context->isContextLost())
+     {
+-        ANGLE_EGL_TRY_RETURN(thread, eglSurface->releaseTexImage(thread->getContext(), buffer),
+-                             "eglReleaseTexImage", GetSurfaceIfValid(display, eglSurface),
+-                             EGL_FALSE);
+-    }
++        gl::Texture *texture = eglSurface->getBoundTexture();
+ 
++        if (texture)
++        {
++            ANGLE_EGL_TRY_RETURN(thread, eglSurface->releaseTexImage(thread->getContext(), buffer),
++                                 "eglReleaseTexImage", GetSurfaceIfValid(display, eglSurface),
++                                 EGL_FALSE);
++        }
++    }
+     thread->setSuccess();
+     return EGL_TRUE;
+ }

patches/angle/cherry-pick-6661eb4900da.patch

@@ -0,0 +1,27 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jamie Madill <jmadill@chromium.org>
+Date: Mon, 2 May 2022 15:42:23 -0400
+Subject: Fix validation cache when deleting a Transform Feedback.
+
+Bug: chromium:1320024
+Change-Id: I76ef85a3c65c663c138d8caebd4ef2c0da53cd4f
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3621780
+Commit-Queue: Jamie Madill <jmadill@chromium.org>
+Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
+Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
+(cherry picked from commit 84e42c3b04da9e2c9d93d35bb6f2b1830fef22f4)
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3650697
+Reviewed-by: Geoff Lang <geofflang@chromium.org>
+
+diff --git a/src/libANGLE/Context.cpp b/src/libANGLE/Context.cpp
+index 390f7bc6790abe5d84b05f97160966eca46fee05..86da3fd82fff38c911e8678a1f6c415583b38381 100755
+--- a/src/libANGLE/Context.cpp
++++ b/src/libANGLE/Context.cpp
+@@ -3075,6 +3075,7 @@ void Context::detachTransformFeedback(TransformFeedbackID transformFeedback)
+     if (mState.removeTransformFeedbackBinding(this, transformFeedback))
+     {
+         bindTransformFeedback(GL_TRANSFORM_FEEDBACK, {0});
++        mStateCache.onActiveTransformFeedbackChange(this);
+     }
+ }
+ 

patches/angle/cherry-pick-801b904aea7d.patch

@@ -0,0 +1,238 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jamie Madill <jmadill@chromium.org>
+Date: Fri, 20 May 2022 10:26:15 -0400
+Subject: D3D: Fix race condition with parallel shader compile.
+
+Bug: chromium:1317673
+Change-Id: I0fb7c9a66248852e41e8700e80c295393ef941e8
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3651153
+Reviewed-by: Jie A Chen <jie.a.chen@intel.com>
+Reviewed-by: Lingfeng Yang <lfy@google.com>
+Commit-Queue: Jamie Madill <jmadill@chromium.org>
+(cherry picked from commit 4a20c9143abbf29c649cf643182735e8952089e3)
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3691050
+Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
+
+diff --git a/src/libANGLE/renderer/d3d/ProgramD3D.cpp b/src/libANGLE/renderer/d3d/ProgramD3D.cpp
+index 59fe34fc46a1bfbc7b4be1aad6ad84b6da303b5b..3256357a80d69739661ec1fd32220d3037145875 100644
+--- a/src/libANGLE/renderer/d3d/ProgramD3D.cpp
++++ b/src/libANGLE/renderer/d3d/ProgramD3D.cpp
+@@ -1687,12 +1687,6 @@ class ProgramD3D::GetVertexExecutableTask : public ProgramD3D::GetExecutableTask
+     angle::Result run() override
+     {
+         ANGLE_TRACE_EVENT0("gpu.angle", "ProgramD3D::GetVertexExecutableTask::run");
+-        if (!mProgram->mState.getAttachedShader(gl::ShaderType::Vertex))
+-        {
+-            return angle::Result::Continue;
+-        }
+-
+-        mProgram->updateCachedInputLayoutFromShader();
+ 
+         ANGLE_TRY(mProgram->getVertexExecutableForCachedInputLayout(this, &mExecutable, &mInfoLog));
+ 
+@@ -2147,6 +2141,11 @@ std::unique_ptr<LinkEvent> ProgramD3D::link(const gl::Context *context,
+ 
+         linkResources(resources);
+ 
++        if (mState.getAttachedShader(gl::ShaderType::Vertex))
++        {
++            updateCachedInputLayoutFromShader();
++        }
++
+         return compileProgramExecutables(context, infoLog);
+     }
+ }
+diff --git a/src/tests/gl_tests/ParallelShaderCompileTest.cpp b/src/tests/gl_tests/ParallelShaderCompileTest.cpp
+index bcd88ef01308759085c8244ad2058efe68686f2b..a98aff540c642617bba366b2e238519942d7e349 100644
+--- a/src/tests/gl_tests/ParallelShaderCompileTest.cpp
++++ b/src/tests/gl_tests/ParallelShaderCompileTest.cpp
+@@ -58,9 +58,10 @@ class ParallelShaderCompileTest : public ANGLETest
+         Task(int id) : mID(id) {}
+         virtual ~Task() {}
+ 
+-        virtual bool compile()                                     = 0;
+-        virtual bool isCompileCompleted()                          = 0;
+-        virtual bool link()                                        = 0;
++        virtual bool compile()            = 0;
++        virtual bool isCompileCompleted() = 0;
++        virtual bool link()               = 0;
++        virtual void postLink() {}
+         virtual void runAndVerify(ParallelShaderCompileTest *test) = 0;
+ 
+         bool isLinkCompleted()
+@@ -71,7 +72,7 @@ class ParallelShaderCompileTest : public ANGLETest
+         }
+ 
+       protected:
+-        std::string insertRandomString(const std::string &source)
++        static std::string InsertRandomString(const std::string &source)
+         {
+             RNG rng;
+             std::ostringstream ostream;
+@@ -80,7 +81,7 @@ class ParallelShaderCompileTest : public ANGLETest
+             return ostream.str();
+         }
+ 
+-        GLuint CompileShader(GLenum type, const std::string &source)
++        static GLuint CompileShader(GLenum type, const std::string &source)
+         {
+             GLuint shader = glCreateShader(type);
+ 
+@@ -90,7 +91,14 @@ class ParallelShaderCompileTest : public ANGLETest
+             return shader;
+         }
+ 
+-        bool checkShader(GLuint shader)
++        static void RecompileShader(GLuint shader, const std::string &source)
++        {
++            const char *sourceArray[1] = {source.c_str()};
++            glShaderSource(shader, 1, sourceArray, nullptr);
++            glCompileShader(shader);
++        }
++
++        static bool CheckShader(GLuint shader)
+         {
+             GLint compileResult;
+             glGetShaderiv(shader, GL_COMPILE_STATUS, &compileResult);
+@@ -129,7 +137,7 @@ class ParallelShaderCompileTest : public ANGLETest
+         TaskRunner() {}
+         ~TaskRunner() {}
+ 
+-        void run(ParallelShaderCompileTest *test)
++        void run(ParallelShaderCompileTest *test, unsigned int pollInterval)
+         {
+ 
+             std::vector<std::unique_ptr<T>> compileTasks;
+@@ -151,6 +159,7 @@ class ParallelShaderCompileTest : public ANGLETest
+                     if (task->isCompileCompleted())
+                     {
+                         bool isLinking = task->link();
++                        task->postLink();
+                         ASSERT_TRUE(isLinking);
+                         linkTasks.push_back(std::move(task));
+                         compileTasks.erase(compileTasks.begin() + i);
+@@ -158,7 +167,10 @@ class ParallelShaderCompileTest : public ANGLETest
+                     }
+                     ++i;
+                 }
+-                angle::Sleep(kPollInterval);
++                if (pollInterval != 0)
++                {
++                    angle::Sleep(pollInterval);
++                }
+             }
+ 
+             while (!linkTasks.empty())
+@@ -173,9 +185,16 @@ class ParallelShaderCompileTest : public ANGLETest
+                         linkTasks.erase(linkTasks.begin() + i);
+                         continue;
+                     }
++                    else
++                    {
++                        task->postLink();
++                    }
+                     ++i;
+                 }
+-                angle::Sleep(kPollInterval);
++                if (pollInterval != 0)
++                {
++                    angle::Sleep(pollInterval);
++                }
+             }
+         }
+     };
+@@ -192,9 +211,9 @@ class ParallelShaderCompileTest : public ANGLETest
+         bool compile() override
+         {
+             mVertexShader =
+-                CompileShader(GL_VERTEX_SHADER, insertRandomString(essl1_shaders::vs::Simple()));
++                CompileShader(GL_VERTEX_SHADER, InsertRandomString(essl1_shaders::vs::Simple()));
+             mFragmentShader = CompileShader(GL_FRAGMENT_SHADER,
+-                                            insertRandomString(essl1_shaders::fs::UniformColor()));
++                                            InsertRandomString(essl1_shaders::fs::UniformColor()));
+             return (mVertexShader != 0 && mFragmentShader != 0);
+         }
+ 
+@@ -213,7 +232,7 @@ class ParallelShaderCompileTest : public ANGLETest
+         bool link() override
+         {
+             mProgram = 0;
+-            if (checkShader(mVertexShader) && checkShader(mFragmentShader))
++            if (CheckShader(mVertexShader) && CheckShader(mFragmentShader))
+             {
+                 mProgram = glCreateProgram();
+                 glAttachShader(mProgram, mVertexShader);
+@@ -244,10 +263,25 @@ class ParallelShaderCompileTest : public ANGLETest
+             ASSERT_GL_NO_ERROR();
+         }
+ 
++      protected:
++        void recompile()
++        {
++            RecompileShader(mVertexShader, essl1_shaders::vs::Simple());
++            RecompileShader(mFragmentShader, essl1_shaders::fs::UniformColor());
++        }
++
+       private:
+-        GLColor mColor;
+         GLuint mVertexShader;
+         GLuint mFragmentShader;
++        GLColor mColor;
++    };
++
++    class ClearColorWithDrawRecompile : public ClearColorWithDraw
++    {
++      public:
++        ClearColorWithDrawRecompile(int taskID) : ClearColorWithDraw(taskID) {}
++
++        void postLink() override { recompile(); }
+     };
+ 
+     class ImageLoadStore : public Task
+@@ -268,7 +302,7 @@ void main()
+     imageStore(uImage_2, ivec2(gl_LocalInvocationID.xy), value);
+ })";
+ 
+-            mShader = CompileShader(GL_COMPUTE_SHADER, insertRandomString(kCSSource));
++            mShader = CompileShader(GL_COMPUTE_SHADER, InsertRandomString(kCSSource));
+             return mShader != 0;
+         }
+ 
+@@ -282,7 +316,7 @@ void main()
+         bool link() override
+         {
+             mProgram = 0;
+-            if (checkShader(mShader))
++            if (CheckShader(mShader))
+             {
+                 mProgram = glCreateProgram();
+                 glAttachShader(mProgram, mShader);
+@@ -370,7 +404,18 @@ TEST_P(ParallelShaderCompileTest, LinkAndDrawManyPrograms)
+     ANGLE_SKIP_TEST_IF(!ensureParallelShaderCompileExtensionAvailable());
+ 
+     TaskRunner<ClearColorWithDraw> runner;
+-    runner.run(this);
++    runner.run(this, kPollInterval);
++}
++
++// Tests no crash in case that the Shader starts another compile while the Program being attached
++// to is still linking.
++// crbug.com/1317673
++TEST_P(ParallelShaderCompileTest, LinkProgramAndRecompileShader)
++{
++    ANGLE_SKIP_TEST_IF(!ensureParallelShaderCompileExtensionAvailable());
++
++    TaskRunner<ClearColorWithDrawRecompile> runner;
++    runner.run(this, 0);
+ }
+ 
+ class ParallelShaderCompileTestES31 : public ParallelShaderCompileTest
+@@ -389,7 +434,7 @@ TEST_P(ParallelShaderCompileTestES31, LinkAndDispatchManyPrograms)
+     ANGLE_SKIP_TEST_IF(!ensureParallelShaderCompileExtensionAvailable());
+ 
+     TaskRunner<ImageLoadStore> runner;
+-    runner.run(this);
++    runner.run(this, kPollInterval);
+ }
+ 
+ ANGLE_INSTANTIATE_TEST_ES2(ParallelShaderCompileTest);

patches/angle/cherry-pick-9768648fffc9.patch

@@ -0,0 +1,26 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: SeongHwan Park <ggabu423@gmail.com>
+Date: Tue, 31 May 2022 02:41:32 +0900
+Subject: Fix to invalidate cache when binding Transform Feedback.
+
+Bug: chromium:1330379
+Change-Id: I091116286ac511c50f9abcffa4d3cf350be920b4
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3677115
+Commit-Queue: Jamie Madill <jmadill@chromium.org>
+Reviewed-by: Jamie Madill <jmadill@chromium.org>
+(cherry picked from commit d96cee6685099f6bcc392a4d20d28c8ec484673a)
+Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3691799
+Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
+
+diff --git a/src/libANGLE/Context.cpp b/src/libANGLE/Context.cpp
+index 685b235cc5962c4f55f539e387dda8c7edb023bc..390f7bc6790abe5d84b05f97160966eca46fee05 100755
+--- a/src/libANGLE/Context.cpp
++++ b/src/libANGLE/Context.cpp
+@@ -1323,6 +1323,7 @@ void Context::bindTransformFeedback(GLenum target, TransformFeedbackID transform
+     TransformFeedback *transformFeedback =
+         checkTransformFeedbackAllocation(transformFeedbackHandle);
+     mState.setTransformFeedbackBinding(this, transformFeedback);
++    mStateCache.onActiveTransformFeedbackChange(this);
+ }
+ 
+ void Context::bindProgramPipeline(ProgramPipelineID pipelineHandle)

patches/chromium/.patches

@@ -21,11 +21,15 @@ resource_file_conflict.patch
 scroll_bounce_flag.patch
 mas_blink_no_private_api.patch
 mas_no_private_api.patch
+mas-cfisobjc.patch
 mas-cgdisplayusesforcetogray.patch
+mas-audiodeviceduck.patch
 mas_disable_remote_layer.patch
 mas_disable_remote_accessibility.patch
 mas_disable_custom_window_frame.patch
-mas_avoid_usage_of_private_macos_apis.patch
+mas_avoid_usage_of_abort_report_np.patch
+mas_avoid_usage_of_pthread_fchdir_np.patch
+mas_avoid_usage_of_setapplicationisdaemon_and.patch
 mas_use_public_apis_to_determine_if_a_font_is_a_system_font.patch
 chrome_key_systems.patch
 add_didinstallconditionalfeatures.patch
@@ -54,6 +58,7 @@ feat_add_set_theme_source_to_allow_apps_to.patch
 add_webmessageportconverter_entangleandinjectmessageportchannel.patch
 ignore_rc_check.patch
 remove_usage_of_incognito_apis_in_the_spellchecker.patch
+chore_use_electron_resources_not_chrome_for_spellchecker.patch
 allow_disabling_blink_scheduler_throttling_per_renderview.patch
 hack_plugin_response_interceptor_to_point_to_electron.patch
 feat_add_support_for_overriding_the_base_spellchecker_download_url.patch
@@ -75,6 +80,7 @@ skip_atk_toolchain_check.patch
 worker_feat_add_hook_to_notify_script_ready.patch
 chore_provide_iswebcontentscreationoverridden_with_full_params.patch
 fix_properly_honor_printing_page_ranges.patch
+fix_use_electron_generated_resources.patch
 chore_expose_v8_initialization_isolate_callbacks.patch
 export_gin_v8platform_pageallocator_for_usage_outside_of_the_gin.patch
 fix_export_zlib_symbols.patch
@@ -97,6 +103,7 @@ process_singleton.patch
 fix_expose_decrementcapturercount_in_web_contents_impl.patch
 add_ui_scopedcliboardwriter_writeunsaferawdata.patch
 feat_add_data_parameter_to_processsingleton.patch
+mas_gate_private_enterprise_APIs.patch
 load_v8_snapshot_in_browser_process.patch
 fix_adapt_exclusive_access_for_electron_needs.patch
 fix_aspect_ratio_with_max_size.patch
@@ -105,10 +112,20 @@ fix_crash_when_saving_edited_pdf_files.patch
 port_autofill_colors_to_the_color_pipeline.patch
 build_disable_partition_alloc_on_mac.patch
 fix_non-client_mouse_tracking_and_message_bubbling_on_windows.patch
-build_make_libcxx_abi_unstable_false_for_electron.patch
+remove_incorrect_width_height_adjustments.patch
 introduce_ozoneplatform_electron_can_call_x11_property.patch
 make_gtk_getlibgtk_public.patch
-build_disable_print_content_analysis.patch
+cherry-pick-cf64617c1cc5.patch
+cherry-pick-e2b8856012e0.patch
+cherry-pick-6b66a45021a0.patch
+fix_xkb_keysym_reverse_look_up_for_lacros.patch
 custom_protocols_plzserviceworker.patch
-feat_filter_out_non-shareable_windows_in_the_current_application_in.patch
+pa_support_16kb_pagesize_on_linux_arm64.patch
+cherry-pick-f1504440487f.patch
+cherry-pick-21139756239b.patch
+cherry-pick-2782c7bc5bbe.patch
+cherry-pick-f3d01ff794dc.patch
+cherry-pick-919b1ffe1fe7.patch
+cherry-pick-f1dd785e021e.patch
+cherry-pick-b03797bdb1df.patch
 posix_replace_doubleforkandexec_with_forkandspawn.patch

patches/chromium/accelerator.patch

@@ -10,7 +10,7 @@ This patch makes three changes to Accelerator::GetShortcutText to improve shortc
 3. Ctrl-Shift-= and Ctrl-Plus show up as such
 
 diff --git a/ui/base/accelerators/accelerator.cc b/ui/base/accelerators/accelerator.cc
-index 9fca6ff3e62204095ff0edc6fafce3a61cd2ff5c..089f8b818018a600cc8c90811f09374a1f702d8b 100644
+index 2468b2c5881821d6f8e24a0e7c42243427b384ad..7e44c97edabf5ae012ff4f84d1404d8f223a13fe 100644
 --- a/ui/base/accelerators/accelerator.cc
 +++ b/ui/base/accelerators/accelerator.cc
 @@ -11,6 +11,7 @@
@@ -44,7 +44,7 @@ index 9fca6ff3e62204095ff0edc6fafce3a61cd2ff5c..089f8b818018a600cc8c90811f09374a
    }
  
  #if BUILDFLAG(IS_MAC)
-@@ -447,7 +457,7 @@ std::u16string Accelerator::ApplyLongFormModifiers(
+@@ -451,7 +461,7 @@ std::u16string Accelerator::ApplyLongFormModifiers(
      const std::u16string& shortcut) const {
    std::u16string result = shortcut;
  
@@ -53,7 +53,7 @@ index 9fca6ff3e62204095ff0edc6fafce3a61cd2ff5c..089f8b818018a600cc8c90811f09374a
      result = ApplyModifierToAcceleratorString(result, IDS_APP_SHIFT_KEY);
  
    // Note that we use 'else-if' in order to avoid using Ctrl+Alt as a shortcut.
-@@ -455,7 +465,7 @@ std::u16string Accelerator::ApplyLongFormModifiers(
+@@ -459,7 +469,7 @@ std::u16string Accelerator::ApplyLongFormModifiers(
    // more information.
    if (IsCtrlDown())
      result = ApplyModifierToAcceleratorString(result, IDS_APP_CTRL_KEY);

patches/chromium/add_contentgpuclient_precreatemessageloop_callback.patch

@@ -10,10 +10,10 @@ Allows Electron to restore WER when ELECTRON_DEFAULT_ERROR_MODE is set.
 This should be upstreamed.
 
 diff --git a/content/gpu/gpu_main.cc b/content/gpu/gpu_main.cc
-index e0ff6fae1e96699e7cb54c9e82a3c68a8e95602b..2179a906bb6c93fbfaa8e7b7e64fddfaab034e94 100644
+index 9f840287967b50ec1db3a9d27973429ab231a486..731a279e395a8762a25a115665bff99be428de3d 100644
 --- a/content/gpu/gpu_main.cc
 +++ b/content/gpu/gpu_main.cc
-@@ -241,6 +241,10 @@ int GpuMain(MainFunctionParams parameters) {
+@@ -239,6 +239,10 @@ int GpuMain(MainFunctionParams parameters) {
    // to the GpuProcessHost once the GpuServiceImpl has started.
    viz::GpuServiceImpl::InstallPreInitializeLogHandler();
  
@@ -24,7 +24,7 @@ index e0ff6fae1e96699e7cb54c9e82a3c68a8e95602b..2179a906bb6c93fbfaa8e7b7e64fddfa
    // We are experiencing what appear to be memory-stomp issues in the GPU
    // process. These issues seem to be impacting the task executor and listeners
    // registered to it. Create the task executor on the heap to guard against
-@@ -347,7 +351,6 @@ int GpuMain(MainFunctionParams parameters) {
+@@ -345,7 +349,6 @@ int GpuMain(MainFunctionParams parameters) {
    GpuProcess gpu_process(io_thread_priority);
  #endif
  

patches/chromium/add_didinstallconditionalfeatures.patch

@@ -10,10 +10,10 @@ DidCreateScriptContext is called, not all JS APIs are available in the
 context, which can cause some preload scripts to trip.
 
 diff --git a/content/public/renderer/render_frame_observer.h b/content/public/renderer/render_frame_observer.h
-index d921125d153742dd09e34418c19195a3d61bef1f..5348c3289a94c86bbbc9bb07be26cc56b4986788 100644
+index a92e09dc651a5f1a9bbae2572fad32233afcd46c..f99b652dda817b62615d2b3f00b4ae4b438ec44d 100644
 --- a/content/public/renderer/render_frame_observer.h
 +++ b/content/public/renderer/render_frame_observer.h
-@@ -136,6 +136,8 @@ class CONTENT_EXPORT RenderFrameObserver : public IPC::Listener,
+@@ -129,6 +129,8 @@ class CONTENT_EXPORT RenderFrameObserver : public IPC::Listener,
    virtual void DidHandleOnloadEvents() {}
    virtual void DidCreateScriptContext(v8::Local<v8::Context> context,
                                        int32_t world_id) {}
@@ -23,10 +23,10 @@ index d921125d153742dd09e34418c19195a3d61bef1f..5348c3289a94c86bbbc9bb07be26cc56
                                          int32_t world_id) {}
    virtual void DidClearWindowObject() {}
 diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
-index 831db39365764d4001b8d602b225f157d3562ca8..4aabe0781d9e4150dddce76a50b993d0b8da8068 100644
+index 4473c5e812a4a598f3e2f2bb06f78def5791af24..44c0ec9815aafd61182fd18a9d125e185d7196bc 100644
 --- a/content/renderer/render_frame_impl.cc
 +++ b/content/renderer/render_frame_impl.cc
-@@ -4502,6 +4502,12 @@ void RenderFrameImpl::DidCreateScriptContext(v8::Local<v8::Context> context,
+@@ -4455,6 +4455,12 @@ void RenderFrameImpl::DidCreateScriptContext(v8::Local<v8::Context> context,
      observer.DidCreateScriptContext(context, world_id);
  }
  
@@ -40,11 +40,11 @@ index 831db39365764d4001b8d602b225f157d3562ca8..4aabe0781d9e4150dddce76a50b993d0
                                                 int world_id) {
    for (auto& observer : observers_)
 diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
-index e903ba9ec4f8d32c5d3a6795f0a20f2addf95743..bb9755b981cf96e131e6545f778f73607fabdd02 100644
+index 21b90bbb8fe8ddc03eb20538be423a5396d18eb3..f9c735038f733d990783dd66ffe8c74f824c78f2 100644
 --- a/content/renderer/render_frame_impl.h
 +++ b/content/renderer/render_frame_impl.h
-@@ -604,6 +604,8 @@ class CONTENT_EXPORT RenderFrameImpl
-                           uint32_t ng_call_count) override;
+@@ -597,6 +597,8 @@ class CONTENT_EXPORT RenderFrameImpl
+       blink::WebLocalFrameClient::LazyLoadBehavior lazy_load_behavior) override;
    void DidCreateScriptContext(v8::Local<v8::Context> context,
                                int world_id) override;
 +  void DidInstallConditionalFeatures(v8::Local<v8::Context> context,
@@ -53,10 +53,10 @@ index e903ba9ec4f8d32c5d3a6795f0a20f2addf95743..bb9755b981cf96e131e6545f778f7360
                                  int world_id) override;
    void DidChangeScrollOffset() override;
 diff --git a/third_party/blink/public/web/web_local_frame_client.h b/third_party/blink/public/web/web_local_frame_client.h
-index 595441198b5253e5f36f97303e952e642998be39..1b17db7b9285cb874e74abdd896888c12b288565 100644
+index 3d6e0c0395ff7c92d8908c5151b467beec3a7516..2fadd6d9b2e3747eacea08973d8d3c7aa9c15f26 100644
 --- a/third_party/blink/public/web/web_local_frame_client.h
 +++ b/third_party/blink/public/web/web_local_frame_client.h
-@@ -598,6 +598,9 @@ class BLINK_EXPORT WebLocalFrameClient {
+@@ -599,6 +599,9 @@ class BLINK_EXPORT WebLocalFrameClient {
    virtual void DidCreateScriptContext(v8::Local<v8::Context>,
                                        int32_t world_id) {}
  
@@ -67,10 +67,10 @@ index 595441198b5253e5f36f97303e952e642998be39..1b17db7b9285cb874e74abdd896888c1
    virtual void WillReleaseScriptContext(v8::Local<v8::Context>,
                                          int32_t world_id) {}
 diff --git a/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc b/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc
-index a6ba8411384855c82712960375bc949c5c2bd522..fc86ca807c9c1bda9236160580b094153778e18b 100644
+index aa4b510137d60e6fb924f4f1a6554fe06c19ad75..816b6260020a6cbb6880b0eed197743ccd9002f5 100644
 --- a/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc
 +++ b/third_party/blink/renderer/bindings/core/v8/local_window_proxy.cc
-@@ -207,6 +207,7 @@ void LocalWindowProxy::Initialize() {
+@@ -205,6 +205,7 @@ void LocalWindowProxy::Initialize() {
    }
  
    InstallConditionalFeatures();
@@ -79,10 +79,10 @@ index a6ba8411384855c82712960375bc949c5c2bd522..fc86ca807c9c1bda9236160580b09415
    if (World().IsMainWorld()) {
      GetFrame()->Loader().DispatchDidClearWindowObjectInMainWorld();
 diff --git a/third_party/blink/renderer/core/frame/local_frame_client.h b/third_party/blink/renderer/core/frame/local_frame_client.h
-index 6fb24096d3a5415f59cba2a8a5a6f36fe838dcc1..a4089fb3989ecd37d5b01baeb03c2ac1f4f05b53 100644
+index 0dda1f7cd77c47f7e61ba48dd20429c13679b543..2f73aacda1bafe07775213e232eda56c4b33325b 100644
 --- a/third_party/blink/renderer/core/frame/local_frame_client.h
 +++ b/third_party/blink/renderer/core/frame/local_frame_client.h
-@@ -298,6 +298,8 @@ class CORE_EXPORT LocalFrameClient : public FrameClient {
+@@ -308,6 +308,8 @@ class CORE_EXPORT LocalFrameClient : public FrameClient {
  
    virtual void DidCreateScriptContext(v8::Local<v8::Context>,
                                        int32_t world_id) = 0;
@@ -92,10 +92,10 @@ index 6fb24096d3a5415f59cba2a8a5a6f36fe838dcc1..a4089fb3989ecd37d5b01baeb03c2ac1
                                          int32_t world_id) = 0;
    virtual bool AllowScriptExtensions() = 0;
 diff --git a/third_party/blink/renderer/core/frame/local_frame_client_impl.cc b/third_party/blink/renderer/core/frame/local_frame_client_impl.cc
-index 40042e1fa2622a871d0ed512f1f6fda1cdda56a6..a377548b36712bd4971bae6b4c0afdc5c8fdbdfc 100644
+index 5297ad63f1c76240d57a64cc5ea64cbf8c7e1b95..006da6072db12da1632f9d45ecb5710136573641 100644
 --- a/third_party/blink/renderer/core/frame/local_frame_client_impl.cc
 +++ b/third_party/blink/renderer/core/frame/local_frame_client_impl.cc
-@@ -273,6 +273,13 @@ void LocalFrameClientImpl::DidCreateScriptContext(
+@@ -274,6 +274,13 @@ void LocalFrameClientImpl::DidCreateScriptContext(
      web_frame_->Client()->DidCreateScriptContext(context, world_id);
  }
  
@@ -110,10 +110,10 @@ index 40042e1fa2622a871d0ed512f1f6fda1cdda56a6..a377548b36712bd4971bae6b4c0afdc5
      v8::Local<v8::Context> context,
      int32_t world_id) {
 diff --git a/third_party/blink/renderer/core/frame/local_frame_client_impl.h b/third_party/blink/renderer/core/frame/local_frame_client_impl.h
-index 1f929d9535ca19a2c443e13f2bafce179f5870df..fe7605585501fcc1fd515f1d94fda7e27d5ba632 100644
+index 708414fca139eb8328e425d909a48ca97038e442..48b2a0e129ec166ebd4c9bbd32330b0cc43dbeb2 100644
 --- a/third_party/blink/renderer/core/frame/local_frame_client_impl.h
 +++ b/third_party/blink/renderer/core/frame/local_frame_client_impl.h
-@@ -80,6 +80,8 @@ class CORE_EXPORT LocalFrameClientImpl final : public LocalFrameClient {
+@@ -78,6 +78,8 @@ class CORE_EXPORT LocalFrameClientImpl final : public LocalFrameClient {
  
    void DidCreateScriptContext(v8::Local<v8::Context>,
                                int32_t world_id) override;
@@ -123,10 +123,10 @@ index 1f929d9535ca19a2c443e13f2bafce179f5870df..fe7605585501fcc1fd515f1d94fda7e2
                                  int32_t world_id) override;
  
 diff --git a/third_party/blink/renderer/core/loader/empty_clients.h b/third_party/blink/renderer/core/loader/empty_clients.h
-index a9bd5283d3c65728dd3293abe88ffd02d3eee4fc..f5e4a927f2f5114e62d76fec86d6a5d2d2321166 100644
+index 4b639069d5d9173f0c35fe7656356031ba424a61..3da6699b40bf4f91e6d76a37e5fa8f680f7a7850 100644
 --- a/third_party/blink/renderer/core/loader/empty_clients.h
 +++ b/third_party/blink/renderer/core/loader/empty_clients.h
-@@ -352,6 +352,8 @@ class CORE_EXPORT EmptyLocalFrameClient : public LocalFrameClient {
+@@ -357,6 +357,8 @@ class CORE_EXPORT EmptyLocalFrameClient : public LocalFrameClient {
  
    void DidCreateScriptContext(v8::Local<v8::Context>,
                                int32_t world_id) override {}

patches/chromium/add_ui_scopedcliboardwriter_writeunsaferawdata.patch

@@ -8,7 +8,7 @@ was removed as part of the Raw Clipboard API scrubbing.
 https://bugs.chromium.org/p/chromium/issues/detail?id=1217643
 
 diff --git a/ui/base/clipboard/scoped_clipboard_writer.cc b/ui/base/clipboard/scoped_clipboard_writer.cc
-index 1eb1d0fe4696f26e7de43fc8797c283e9e6db042..766f8d8df866ce7fbc337cecceb715cced39643c 100644
+index 3009acd40eee36bc3d4dd8642f0ce5e6476da973..1d52ce84184a3ca94e4e0f04d331bf56d75e07d0 100644
 --- a/ui/base/clipboard/scoped_clipboard_writer.cc
 +++ b/ui/base/clipboard/scoped_clipboard_writer.cc
 @@ -227,6 +227,16 @@ void ScopedClipboardWriter::WriteEncodedDataTransferEndpointForTesting(

patches/chromium/allow_disabling_blink_scheduler_throttling_per_renderview.patch

@@ -6,10 +6,10 @@ Subject: allow disabling blink scheduler throttling per RenderView
 This allows us to disable throttling for hidden windows.
 
 diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
-index 1f6d9be10432416f591a616805494b5d78975df1..e73f70c62ac2e69c918bdf39bd53f74a47066f4e 100644
+index 56c08919ab626a8a7b3bcb892ee94cdee2a106fc..b85bdf4ed574a149a6502e8d21e54f2ee80777a5 100644
 --- a/content/browser/renderer_host/render_view_host_impl.cc
 +++ b/content/browser/renderer_host/render_view_host_impl.cc
-@@ -665,6 +665,11 @@ void RenderViewHostImpl::SetBackgroundOpaque(bool opaque) {
+@@ -647,6 +647,11 @@ void RenderViewHostImpl::SetBackgroundOpaque(bool opaque) {
    GetWidget()->GetAssociatedFrameWidget()->SetBackgroundOpaque(opaque);
  }
  
@@ -22,24 +22,24 @@ index 1f6d9be10432416f591a616805494b5d78975df1..e73f70c62ac2e69c918bdf39bd53f74a
    return is_active();
  }
 diff --git a/content/browser/renderer_host/render_view_host_impl.h b/content/browser/renderer_host/render_view_host_impl.h
-index 3ccc771a82992ae70c770fa6d2dde92904aa17db..505091e9006f7d41fa8d02e603afef1d10b35bf4 100644
+index 9e32df9f5fd765895c8470c3922a62f754e7d409..9bac2321d65d9e54ce88fffafd72a74803ed2c87 100644
 --- a/content/browser/renderer_host/render_view_host_impl.h
 +++ b/content/browser/renderer_host/render_view_host_impl.h
-@@ -138,6 +138,7 @@ class CONTENT_EXPORT RenderViewHostImpl
-   void EnablePreferredSizeMode() override;
-   void WriteIntoTrace(perfetto::TracedProto<TraceProto> context) const override;
+@@ -135,6 +135,7 @@ class CONTENT_EXPORT RenderViewHostImpl
+   bool IsRenderViewLive() override;
+   void WriteIntoTrace(perfetto::TracedValue context) override;
  
 +  void SetSchedulerThrottling(bool allowed) override;
    void SendWebPreferencesToRenderer();
    void SendRendererPreferencesToRenderer(
        const blink::RendererPreferences& preferences);
 diff --git a/content/public/browser/render_view_host.h b/content/public/browser/render_view_host.h
-index 4d2a4c6746e1dbfc619faf2e16eaa4948d74e372..6c9f190ff595234eca18ff20ca0655da4689b7a2 100644
+index 787077d71c04d571aa825bec0a549c5fad2b8574..4b05b80802ba97a46eed60e509b503fc8375016b 100644
 --- a/content/public/browser/render_view_host.h
 +++ b/content/public/browser/render_view_host.h
-@@ -77,6 +77,9 @@ class CONTENT_EXPORT RenderViewHost {
-   virtual void WriteIntoTrace(
-       perfetto::TracedProto<TraceProto> context) const = 0;
+@@ -74,6 +74,9 @@ class CONTENT_EXPORT RenderViewHost {
+   // Write a representation of this object into a trace.
+   virtual void WriteIntoTrace(perfetto::TracedValue context) = 0;
  
 +  // Disable/Enable scheduler throttling.
 +  virtual void SetSchedulerThrottling(bool allowed) = 0;
@@ -48,10 +48,10 @@ index 4d2a4c6746e1dbfc619faf2e16eaa4948d74e372..6c9f190ff595234eca18ff20ca0655da
    // This interface should only be implemented inside content.
    friend class RenderViewHostImpl;
 diff --git a/content/renderer/render_view_impl.h b/content/renderer/render_view_impl.h
-index 99978b33c294ebe37192baccb29f0a34a25aed17..ef6e9ae24979538b8746aca898d1f302827491d8 100644
+index 4e8d36420d6edc1725a840e1b9f123041d21abe4..dd198cb7bf02e509833c6b4c7d8e5d65d20d46dc 100644
 --- a/content/renderer/render_view_impl.h
 +++ b/content/renderer/render_view_impl.h
-@@ -151,6 +151,8 @@ class CONTENT_EXPORT RenderViewImpl : public blink::WebViewClient,
+@@ -152,6 +152,8 @@ class CONTENT_EXPORT RenderViewImpl : public blink::WebViewClient,
    static WindowOpenDisposition NavigationPolicyToDisposition(
        blink::WebNavigationPolicy policy);
  
@@ -61,10 +61,10 @@ index 99978b33c294ebe37192baccb29f0a34a25aed17..ef6e9ae24979538b8746aca898d1f302
    // ADDING NEW FUNCTIONS? Please keep private functions alphabetized and put
    // it in the same order in the .cc file as it was in the header.
 diff --git a/third_party/blink/public/mojom/page/page.mojom b/third_party/blink/public/mojom/page/page.mojom
-index 39bfc2200e924d0c589cfd07f085f182ef6853a6..bddff6d5ad3f6d08c4dc48e66ebc5319b1a5ec28 100644
+index befd736a9cf362514b9a2ee475dc4a814c85a87b..24b2617f56673a3075697802cf5b574b0c766610 100644
 --- a/third_party/blink/public/mojom/page/page.mojom
 +++ b/third_party/blink/public/mojom/page/page.mojom
-@@ -108,4 +108,7 @@ interface PageBroadcast {
+@@ -97,4 +97,7 @@ interface PageBroadcast {
  
    // Sent to whole page, but should only be used by the main frame.
    SetPageBaseBackgroundColor(skia.mojom.SkColor? color);
@@ -73,10 +73,10 @@ index 39bfc2200e924d0c589cfd07f085f182ef6853a6..bddff6d5ad3f6d08c4dc48e66ebc5319
 +  SetSchedulerThrottling(bool allowed);
  };
 diff --git a/third_party/blink/public/web/web_view.h b/third_party/blink/public/web/web_view.h
-index 5e4032ccf916f969cd669af7d983becddb57c72b..a858c9f2fa609ae756a2e70d0362f2de372dd5be 100644
+index 14d4a00293ab0b11e733676844ce483992d6cd8e..c6c2dbb9dddd1eaa21e8c7b276d871a3898463fa 100644
 --- a/third_party/blink/public/web/web_view.h
 +++ b/third_party/blink/public/web/web_view.h
-@@ -364,6 +364,7 @@ class WebView {
+@@ -368,6 +368,7 @@ class WebView {
    // Scheduling -----------------------------------------------------------
  
    virtual PageScheduler* Scheduler() const = 0;
@@ -85,10 +85,10 @@ index 5e4032ccf916f969cd669af7d983becddb57c72b..a858c9f2fa609ae756a2e70d0362f2de
    // Visibility -----------------------------------------------------------
  
 diff --git a/third_party/blink/renderer/core/exported/web_view_impl.cc b/third_party/blink/renderer/core/exported/web_view_impl.cc
-index 229d9f2112e70f3bbff6e6986ab01c67483a1ae9..0529b4399959a2a2b9b0131dd8736a87fb973b0b 100644
+index b9d5a13bcdf981064f9970fdb8017fed5f93b35e..182f70b2b3bd9cbc6548d4c17caad797e5dad0ce 100644
 --- a/third_party/blink/renderer/core/exported/web_view_impl.cc
 +++ b/third_party/blink/renderer/core/exported/web_view_impl.cc
-@@ -3711,6 +3711,13 @@ PageScheduler* WebViewImpl::Scheduler() const {
+@@ -3668,6 +3668,13 @@ PageScheduler* WebViewImpl::Scheduler() const {
    return GetPage()->GetPageScheduler();
  }
  
@@ -102,7 +102,7 @@ index 229d9f2112e70f3bbff6e6986ab01c67483a1ae9..0529b4399959a2a2b9b0131dd8736a87
  void WebViewImpl::SetVisibilityState(
      mojom::blink::PageVisibilityState visibility_state,
      bool is_initial_state) {
-@@ -3722,7 +3729,8 @@ void WebViewImpl::SetVisibilityState(
+@@ -3679,7 +3686,8 @@ void WebViewImpl::SetVisibilityState(
    }
    GetPage()->SetVisibilityState(visibility_state, is_initial_state);
    GetPage()->GetPageScheduler()->SetPageVisible(
@@ -113,10 +113,10 @@ index 229d9f2112e70f3bbff6e6986ab01c67483a1ae9..0529b4399959a2a2b9b0131dd8736a87
  
  mojom::blink::PageVisibilityState WebViewImpl::GetVisibilityState() {
 diff --git a/third_party/blink/renderer/core/exported/web_view_impl.h b/third_party/blink/renderer/core/exported/web_view_impl.h
-index 2f8e971ab224b36c6e464eb7524dd3d4c6b76f8c..4a9664d0ce5de431d9638e4145a21091cea78fd1 100644
+index 5107ef421138e136b20b25b7bbcc1f0bb246bb66..043266205142e59f88c4c2f2ae6b58bb009f2d9c 100644
 --- a/third_party/blink/renderer/core/exported/web_view_impl.h
 +++ b/third_party/blink/renderer/core/exported/web_view_impl.h
-@@ -418,6 +418,7 @@ class CORE_EXPORT WebViewImpl final : public WebView,
+@@ -420,6 +420,7 @@ class CORE_EXPORT WebViewImpl final : public WebView,
    LocalDOMWindow* PagePopupWindow() const;
  
    PageScheduler* Scheduler() const override;
@@ -124,7 +124,7 @@ index 2f8e971ab224b36c6e464eb7524dd3d4c6b76f8c..4a9664d0ce5de431d9638e4145a21091
    void SetVisibilityState(mojom::blink::PageVisibilityState visibility_state,
                            bool is_initial_state) override;
    mojom::blink::PageVisibilityState GetVisibilityState() override;
-@@ -865,6 +866,8 @@ class CORE_EXPORT WebViewImpl final : public WebView,
+@@ -857,6 +858,8 @@ class CORE_EXPORT WebViewImpl final : public WebView,
    // If true, we send IPC messages when |preferred_size_| changes.
    bool send_preferred_size_changes_ = false;
  

patches/chromium/allow_in-process_windows_to_have_different_web_prefs.patch

@@ -8,10 +8,10 @@ WebPreferences of in-process child windows, rather than relying on
 process-level command line switches, as before.
 
 diff --git a/third_party/blink/common/web_preferences/web_preferences.cc b/third_party/blink/common/web_preferences/web_preferences.cc
-index 6d51f6a77c21b60ab756dbf8d4961b351a2e2b07..26b820b3ce387e01900cec4227ff290113a833c3 100644
+index 30e237f886b41bdf528b2a0e81054d15fb323f1f..43f7920cf6ff12d8a48ddef5440814a42266e8c5 100644
 --- a/third_party/blink/common/web_preferences/web_preferences.cc
 +++ b/third_party/blink/common/web_preferences/web_preferences.cc
-@@ -142,6 +142,19 @@ WebPreferences::WebPreferences()
+@@ -145,6 +145,20 @@ WebPreferences::WebPreferences()
        fake_no_alloc_direct_call_for_testing_enabled(false),
        v8_cache_options(blink::mojom::V8CacheOptions::kDefault),
        record_whole_document(false),
@@ -20,6 +20,7 @@ index 6d51f6a77c21b60ab756dbf8d4961b351a2e2b07..26b820b3ce387e01900cec4227ff2901
 +      is_webview(false),
 +      hidden_page(false),
 +      offscreen(false),
++      preload(base::FilePath::StringType()),
 +      node_integration(false),
 +      node_integration_in_worker(false),
 +      node_integration_in_sub_frames(false),
@@ -32,10 +33,21 @@ index 6d51f6a77c21b60ab756dbf8d4961b351a2e2b07..26b820b3ce387e01900cec4227ff2901
        accelerated_video_decode_enabled(false),
        animation_policy(
 diff --git a/third_party/blink/common/web_preferences/web_preferences_mojom_traits.cc b/third_party/blink/common/web_preferences/web_preferences_mojom_traits.cc
-index 187fd8d9818693262256d5cbddd5e02659ba903d..28e5178361e03d1ac851fa74214931b2332dd9c2 100644
+index d278453a261fe2dd3bacce433e35d50879b555a7..140f8d6273d944bfe36831d27aef757d89240b56 100644
 --- a/third_party/blink/common/web_preferences/web_preferences_mojom_traits.cc
 +++ b/third_party/blink/common/web_preferences/web_preferences_mojom_traits.cc
-@@ -148,6 +148,19 @@ bool StructTraits<blink::mojom::WebPreferencesDataView,
+@@ -22,6 +22,10 @@ bool StructTraits<blink::mojom::WebPreferencesDataView,
+       !data.ReadSansSerifFontFamilyMap(&out->sans_serif_font_family_map) ||
+       !data.ReadCursiveFontFamilyMap(&out->cursive_font_family_map) ||
+       !data.ReadFantasyFontFamilyMap(&out->fantasy_font_family_map) ||
++      // Begin Electron-specific WebPreferences.
++      !data.ReadPreloads(&out->preloads) ||
++      !data.ReadPreload(&out->preload) ||
++      // End Electron-specific WebPreferences.
+       !data.ReadLazyFrameLoadingDistanceThresholdsPx(
+           &out->lazy_frame_loading_distance_thresholds_px) ||
+       !data.ReadLazyImageLoadingDistanceThresholdsPx(
+@@ -151,6 +155,19 @@ bool StructTraits<blink::mojom::WebPreferencesDataView,
        data.fake_no_alloc_direct_call_for_testing_enabled();
    out->v8_cache_options = data.v8_cache_options();
    out->record_whole_document = data.record_whole_document();
@@ -56,7 +68,7 @@ index 187fd8d9818693262256d5cbddd5e02659ba903d..28e5178361e03d1ac851fa74214931b2
    out->accelerated_video_decode_enabled =
        data.accelerated_video_decode_enabled();
 diff --git a/third_party/blink/public/common/web_preferences/web_preferences.h b/third_party/blink/public/common/web_preferences/web_preferences.h
-index 59947bfd3c042e5f7d3993967fece9b519f93472..cb2a53f6147767394585ed371744d8a140aace71 100644
+index 8509f720c5afb816c6cbb2313dd566a24236a790..b9f0f79d96c58a7769939610bb72f8b2bcd3be94 100644
 --- a/third_party/blink/public/common/web_preferences/web_preferences.h
 +++ b/third_party/blink/public/common/web_preferences/web_preferences.h
 @@ -10,6 +10,7 @@
@@ -67,15 +79,17 @@ index 59947bfd3c042e5f7d3993967fece9b519f93472..cb2a53f6147767394585ed371744d8a1
  #include "net/nqe/effective_connection_type.h"
  #include "third_party/blink/public/common/common_export.h"
  #include "third_party/blink/public/mojom/css/preferred_color_scheme.mojom-shared.h"
-@@ -154,6 +155,20 @@ struct BLINK_COMMON_EXPORT WebPreferences {
+@@ -160,6 +161,22 @@ struct BLINK_COMMON_EXPORT WebPreferences {
    blink::mojom::V8CacheOptions v8_cache_options;
    bool record_whole_document;
  
 +  // Begin Electron-specific WebPreferences.
++  std::vector<base::FilePath> preloads;
 +  bool context_isolation;
 +  bool is_webview;
 +  bool hidden_page;
 +  bool offscreen;
++  base::FilePath preload;
 +  bool node_integration;
 +  bool node_integration_in_worker;
 +  bool node_integration_in_sub_frames;
@@ -89,7 +103,7 @@ index 59947bfd3c042e5f7d3993967fece9b519f93472..cb2a53f6147767394585ed371744d8a1
    // only controls whether or not the "document.cookie" field is properly
    // connected to the backing store, for instance if you wanted to be able to
 diff --git a/third_party/blink/public/common/web_preferences/web_preferences_mojom_traits.h b/third_party/blink/public/common/web_preferences/web_preferences_mojom_traits.h
-index bd425a5869477de9095c6a41c683609d065b08c0..c7ba3ff52c9de01028c9e2be214e20cd91cbf309 100644
+index a6291be3e953ceaee1d996e4b30a6ae78916bc7a..c3baf95c5d9b6a6ace56bcde9e1dc8179f18eaa0 100644
 --- a/third_party/blink/public/common/web_preferences/web_preferences_mojom_traits.h
 +++ b/third_party/blink/public/common/web_preferences/web_preferences_mojom_traits.h
 @@ -6,6 +6,7 @@
@@ -100,11 +114,15 @@ index bd425a5869477de9095c6a41c683609d065b08c0..c7ba3ff52c9de01028c9e2be214e20cd
  #include "mojo/public/cpp/bindings/struct_traits.h"
  #include "net/nqe/effective_connection_type.h"
  #include "third_party/blink/public/common/common_export.h"
-@@ -428,6 +429,52 @@ struct BLINK_COMMON_EXPORT StructTraits<blink::mojom::WebPreferencesDataView,
+@@ -441,6 +442,60 @@ struct BLINK_COMMON_EXPORT StructTraits<blink::mojom::WebPreferencesDataView,
      return r.record_whole_document;
    }
  
 +  // Begin Electron-specific WebPreferences.
++  static const std::vector<base::FilePath>& preloads(const blink::web_pref::WebPreferences& r) {
++    return r.preloads;
++  }
++
 +  static bool context_isolation(const blink::web_pref::WebPreferences& r) {
 +    return r.context_isolation;
 +  }
@@ -121,6 +139,10 @@ index bd425a5869477de9095c6a41c683609d065b08c0..c7ba3ff52c9de01028c9e2be214e20cd
 +    return r.offscreen;
 +  }
 +
++  static const base::FilePath& preload(const blink::web_pref::WebPreferences& r) {
++    return r.preload;
++  }
++
 +  static bool node_integration(const blink::web_pref::WebPreferences& r) {
 +    return r.node_integration;
 +  }
@@ -154,7 +176,7 @@ index bd425a5869477de9095c6a41c683609d065b08c0..c7ba3ff52c9de01028c9e2be214e20cd
      return r.cookie_enabled;
    }
 diff --git a/third_party/blink/public/mojom/webpreferences/web_preferences.mojom b/third_party/blink/public/mojom/webpreferences/web_preferences.mojom
-index 738ac646e075f7a37ba2a263c7799a755e63d3fb..40ab2a4b9a1f9de5f201502adebc166a48fccd35 100644
+index 96dd9fd56e44e66c5ea24d9df7c6cbff25409d6c..e0d113b4dee6a72f350b8494448f516be01d0468 100644
 --- a/third_party/blink/public/mojom/webpreferences/web_preferences.mojom
 +++ b/third_party/blink/public/mojom/webpreferences/web_preferences.mojom
 @@ -10,6 +10,7 @@ import "third_party/blink/public/mojom/v8_cache_options.mojom";
@@ -165,15 +187,17 @@ index 738ac646e075f7a37ba2a263c7799a755e63d3fb..40ab2a4b9a1f9de5f201502adebc166a
  
  enum PointerType {
    kPointerNone                              = 1,             // 1 << 0
-@@ -206,6 +207,20 @@ struct WebPreferences {
+@@ -212,6 +213,22 @@ struct WebPreferences {
    V8CacheOptions v8_cache_options;
    bool record_whole_document;
  
 +  // Begin Electron-specific WebPreferences.
++  array<mojo_base.mojom.FilePath> preloads;
 +  bool context_isolation;
 +  bool is_webview;
 +  bool hidden_page;
 +  bool offscreen;
++  mojo_base.mojom.FilePath preload;
 +  bool node_integration;
 +  bool node_integration_in_worker;
 +  bool node_integration_in_sub_frames;

patches/chromium/allow_new_privileges_in_unsandboxed_child_processes.patch

@@ -6,10 +6,10 @@ Subject: allow new privileges in unsandboxed child processes
 This allows unsandboxed renderers to launch setuid processes on Linux.
 
 diff --git a/content/browser/child_process_launcher_helper_linux.cc b/content/browser/child_process_launcher_helper_linux.cc
-index b2b29e715d6e5ea427faf6829e935e91dd87d471..138b5da2e5ae85760faaeeff92168d1070b6f562 100644
+index f60ad777ab7698a4518d3b1b61ade29e7c618a3a..c7781bdb49f8a92aa9ee1d8dd1af03fa9cf2dfe3 100644
 --- a/content/browser/child_process_launcher_helper_linux.cc
 +++ b/content/browser/child_process_launcher_helper_linux.cc
-@@ -54,6 +54,18 @@ bool ChildProcessLauncherHelper::BeforeLaunchOnLauncherThread(
+@@ -53,6 +53,18 @@ bool ChildProcessLauncherHelper::BeforeLaunchOnLauncherThread(
    if (GetProcessType() == switches::kRendererProcess) {
      const int sandbox_fd = SandboxHostLinux::GetInstance()->GetChildSocket();
      options->fds_to_remap.push_back(std::make_pair(sandbox_fd, GetSandboxFD()));
@@ -27,4 +27,4 @@ index b2b29e715d6e5ea427faf6829e935e91dd87d471..138b5da2e5ae85760faaeeff92168d10
 +    }
    }
  
-   for (const auto& remapped_fd : file_data_->additional_remapped_fds) {
+   options->environment = delegate_->GetEnvironment();