Sync fork with chromium/7103

[hoxyq]

Re-land of #170, because I've accidentally squashed commits.

Summary

Upgrades the react-native-devtools-frontend fork from chromium/6613 to the upstream chromium/7103 branch.

There were a total of ~51 conflicts, resolved as below:

File conflicts

• .gitignore — Merge changes
• README.md — Keep ours
• CONTRIBUTING.md — Both added, keep ours
• config/gni/devtools_grd_files.gni — Merge changes
• front_end/BUILD.gn — Merge changes
• front_end/core/root/Runtime.ts — Merge changes
• front_end/core/sdk/Connections.ts — Merge changes
  • Preserve object arg variant of onConnectionLost introduced in Report WebSocket connection termination error code and message #156.
• front_end/core/sdk/PageResourceLoader.ts — Merge changes
  • Use upstream renamed enum keys.
• front_end/core/sdk/sdk-meta.ts — Merge changes
  • Keep our skip-stack-frames-pattern default (Restore skip-stack-frames-pattern setting with empty default #137)
• front_end/core/sdk/sdk.ts — Keep both
• front_end/entrypoints/inspector_main/BUILD.gn — Keep both
• front_end/entrypoints/main/BUILD.gn — Keep both
• front_end/entrypoints/main/MainImpl.ts — merge
• front_end/entrypoints/shell/BUILD.gn — Keep both
• front_end/models/source_map_scopes/NamesResolver.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/models/source_map_scopes/NamesResolver.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/models/trace/handlers/RendererHandler.ts — Merge
• front_end/models/trace/handlers/WarningsHandler.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/models/trace/helpers/SyntheticEvents.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/models/trace/insights/DocumentLatency.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/models/trace/insights/InteractionToNextPaint.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/models/trace/lantern/core/NetworkAnalyzer.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/panels/console/ConsolePrompt.ts - Use upstream, then reapply Disable console-eager-eval and Live Expressions panel #164
• front_end/panels/console/ConsoleView.ts - Use upstream, then reapply Disable console-eager-eval and Live Expressions panel #164
• front_end/panels/console/console-meta.ts - Use upstream, then reapply Disable console-eager-eval and Live Expressions panel #164
• front_end/panels/console/consoleView.css — Keep both CSS additions
• front_end/panels/console/ErrorStackParser.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/panels/network/network-meta.ts — Keep ours
• front_end/panels/network/NetworkLogView.ts — Keep our customisations
• front_end/panels/network/NetworkPanel.ts — Keep our customisations
• front_end/panels/profiler/HeapSnapshotView.ts — Merge
  • Preserve our rnPerfMetrics calls.
• front_end/panels/sources/SourcesView.ts — Use upstream
  • Conditionally hidden UI no longer present.
• front_end/panels/sources/UISourceCodeFrame.ts — Keep our customisations
• front_end/panels/timeline/EntriesFilter.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/panels/timeline/Initiators.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/panels/timeline/ModificationsManager.test.ts — Use upstream, then reapply Performance: hide more unsupported features #150
• front_end/panels/timeline/TimelineFlameChartDataProvider.ts — Keep our customisations
• front_end/panels/timeline/TimelinePanel.ts — Merge
  • Preserve our disabled Performance features.
• front_end/panels/timeline/TimelineLandingPage.ts — Deleted upstream
• front_end/panels/timeline/TimingsTrackAppender.ts — Use upstream
• front_end/testing/EnvironmentHelpers.ts — Keep both (experiment keys)
• front_end/third_party/additional_readme_paths.json — Keep both (manifest file)
• front_end/ui/components/input/checkbox.css — Use upstream
• front_end/ui/legacy/ActionRegistration.ts — Keep our extra icons
• front_end/ui/legacy/BUILD.gn — Merge
• front_end/ui/legacy/components/utils/TargetDetachedDialog.ts — Merge changes
  • Preserve object arg variant of connectionLost introduced in Report WebSocket connection termination error code and message #156.
• front_end/ui/legacy/inspectorCommon.css — Use upstream (not modified by us)
• front_end/ui/legacy/remoteDebuggingTerminatedScreen.css — Keep ours
• front_end/ui/legacy/RemoteDebuggingTerminatedScreen.ts — Merged
  • Keep our dialog design, lit-html -> lit.
• front_end/ui/legacy/theme_support/ThemeSupport.ts — Merge
  • Preserve our baseline-greyscale override.
• third_party/node/node.py — Use upstream (includes our fix)

Linter

• 42 errors fixed.
• 20 CSS linter error fixed.
• npm run lint now succeeds.

Tests

• Disabled 3 screenshot tests:
  • 2 in ProtocolMonitor.test.ts, because we changed the order or domains by adding ReactNativeApplication domain, which is always declared first.
  • 1 in UserActionRow.test.ts, because of unknown 2.88% difference. This is used for AI features, which are disabled by default, and which we don't currently support.
  • npm run test -- front_end succeeds on CI. I had to downgrade our Ubuntu because of this - [Bug]: "No usable sandbox!" with user namespace cloning enabled puppeteer/puppeteer#12818, https://issues.chromium.org/issues/373753919.
    • I couldn't make npm run test -- front_end work locally on Mac, for some reason tests inside panels/recorder are failing.

Test plan

Smoke testing

• Welcome
  • All links are clickable ✅
  • [Internal-only] Session ID is displayed ✅
• Console
  • Evaluation from the Console works ✅
  • Ignore lists are respected ✅
  • Eager evaluation is disabled ✅
  • Error stack symbolication works ✅
• Sources
  • Loaded sources are displayed in the tree ✅
  • VM is paused when breakpoint is hit ✅
  • Stepping in / out / over works ✅
  • "Deactivate breakpoints" works ✅
• React DevTools Components
  • The React Tree is loaded ✅
  • Components are highlighted on the screen when hovered over ✅
  • Can click on a component from the Tree and see its attributes ✅
  • Select-to-inspect works - ❌
    • Also broken on main.
• Profiler
  • Can record a session ✅
  • Reload-to-profile works ✅
  • Can download profile ✅
  • Can upload profile ✅
• Performance
  • Can record a session ✅
  • JavaScript Samples displayed correctly and grouped ✅
  • Custom Track integration works ✅
  • In DEV mode, sources of the call frames are symbolicated ✅
• Memory
  • Live metrics are displayed ✅
  • Snapshot recorded successfully ✅
  • Could record allocations on a timeline successfully ✅
  • Allocation sampling works - ❌
    • Also broken on main.
  • Detached elements - ❌ (New feature, new CDP request, unsupported)
    • Will hide in a separate PR
• Other
  • [FB-only] Send feedback button is visible on the panel toolbar ✅
  • When disconnected, Reconnect button is displayed ✅
  • Reloading via Cmd + R works - ✅

Upstreaming plan

• This commit should be sent as a patch to the upstream devtools-frontend repo. I've reviewed the contribution guide.
• This commit is React Native-specific and cannot be upstreamed.