This reverts commit 50d42122.

This reverts commit e43fd1c5.

* fix duration event of timeline summary

* Revert "fix duration event of timeline summary"

This reverts commit 699aa45ed3d115f8bbea95cf6d37116b442db399.

* fix duration event of timeline summary

This reverts commit cc1c9649.

This reverts commit 1ef0eadb.

* Support Flutter Driver test for Flutter Web application.

* Support Flutter Driver test for Flutter Web application.

* Fix documentation issues.

* Support Flutter Driver test for Flutter Web application.

* Fix documentation.

* Remove unused file from dartdoc check.

* Sync to date.

* Revert change to dartdoc.

* Address comments.

* Apply suggestions from code review
Co-Authored-By: Jonah Williams <jonahwilliams@google.com>

* Update copyrights.

* Update allowed list for browsers.

* Verify command line arguments for Drive command is correctly parsed.

* Make waitUntilFirstFrameRasterized throw unimplementedError for Flutter Web Driver.

* Add comment for why sync WebDriver is used.

* Update documentations.

* Add more unit tests and update documentation.

* Configure test.dart so that web_extension_test will be executed with --platform=chrome.

* Revert unnecessary changes.

* Add new file path for Windows to blacklist.

* Reconstruct the structure of flutter_driver/test/src folder to remove filtering logic in dev/bots/test.dart/

* Fix path to web_extension_test.dart.

* Add instructions for how to use WebFlutterDriver.

* Update getLayerTree to use sendCommand instead of _sendCommand.

* Update pubspec files.

* implicit-casts:false in flutter_driver

* address review comments

* Simplify logging code in flutter_driver

It appears nobody is benefitting from this logic, so we may as well not pay the cost.

* Make all of the driver interface public.

This is the second attempt at this; it should be better than before because the Logger interface, which conflicted in various places, no longer exists.

See #45733 for original attempt.

This reverts commit 0ce9206e (PR #45924).

* Update project.pbxproj files to say Flutter rather than Chromium

Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright.

* Update the copyright notice checker to require a standard notice on all files

* Update copyrights on Dart files. (This was a mechanical commit.)

* Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine.

Some were already marked "The Flutter Authors", not clear why. Their
dates have been normalized. Some were missing the blank line after the
license. Some were randomly different in trivial ways for no apparent
reason (e.g. missing the trailing period).

* Clean up the copyrights in non-Dart files. (Manual edits.)

Also, make sure templates don't have copyrights.

* Fix some more ORGANIZATIONNAMEs

This adds a Semantics node to the Focus and FocusScope widgets, setting the focused and focusable attributes so that the accessibility subsystem can be told when a control has the input focus.

Includes an engine roll to flutter/engine@77252d2, and the following 8 engine changes:

flutter/engine@77252d2 Greg Spencer Add missing focusable testing info (flutter/engine#13013)
flutter/engine@0e42a29 skia-flutter-.. Roll src/third_party/skia 54548626a977..e27a503a0a21 (1 commits) (flutter/engine#13024)
flutter/engine@6b56ed7 gaaclarke Refactor: FlutterDartProject (flutter/engine#13006)
flutter/engine@393480c skia-flutter-.. Roll src/third_party/skia 77dde599c98a..54548626a977 (1 commits) (flutter/engine#13023)
flutter/engine@080b89d skia-flutter-.. Roll src/third_party/skia 2b1a25a4d324..77dde599c98a (1 commits) (flutter/engine#13021)
flutter/engine@90b0f30 Ben Konyi Roll src/third_party/dart f4a72bfc64..bb04f145b2 (18 commits) (flutter/engine#13020)
flutter/engine@049fb89 skia-flutter-.. Roll fuchsia/sdk/core/linux-amd64 from q_uYX... to cknsi... (flutter/engine#13019)
flutter/engine@6925b2a skia-flutter-.. Roll fuchsia/sdk/core/mac-amd64 from wuAtw... to u0JpE... (flutter/engine#13018)

Related Issues
Addresses #40101

Landing on red in order to fix the build: it's red because of the needed engine roll.

* Simplified the serialization/deserialization logic of the Descendant/Ancestor matchers

* Added a composable waitForCondition Driver/extension API.

This reverts commit df2db4e5.

* Added SerializableWaitCondition for communicating between driver script on host and extension on device.

This reverts commit 8edc3f76.

Fixes https://github.com/flutter/flutter/issues/36091.

Previously, a sendRequest will be sent even if the peer is closed during
a driver test. That will cause a time out without any error information.
Such issue is unreproducible on my Mac Book Pro, but 100% reproducible
on our new Mac mini (2018).

The closing issue is tracked in https://github.com/flutter/flutter/issues/36268

Additional to this fix, we should also patch the jason_rpc_2 so the peer
will throw exception if sendRequest is attempted while the connection is
closed.

**Test**:
tiles_scroll_perf_iphonexs__timeline_summary failed without this patch.
It will pass after this patch.

I'm not sure how to add a unit test for this. Please let me know if you have
some ideas.

This patch will generate the following warning log on the new Mac Mini
```
flutter: Observatory listening on http://127.0.0.1:50192/cZPDF4sW7MM=/  
Installing and launching...                                        10.2s
00:00 +0: scrolling performance test (setUpAll)
[info ] FlutterDriver: Connecting to Flutter application at http://127.0.0.1:1069/cZPDF4sW7MM=/
[trace] FlutterDriver: Isolate found with number: 3684677742843303
[trace] FlutterDriver: Isolate is paused at start.
[trace] FlutterDriver: Attempting to resume isolate
[trace] FlutterDriver: Waiting for service extension
[info ] FlutterDriver: Connected to Flutter application.
00:00 +0: scrolling performance test complex_layout_scroll_perf
[warning] FlutterDriver: Instance of '_WebSocketImpl' is closed with an unexpected code 1005
[warning] FlutterDriver: Peer connection is closed! Trying to restore the connection...
00:10 +1: scrolling performance test tiles_scroll_perf
[warning] FlutterDriver: Instance of '_WebSocketImpl' is closed with an unexpected code 1005
[warning] FlutterDriver: Peer connection is closed! Trying to restore the connection...
00:20 +2: scrolling performance test (tearDownAll)
00:20 +2: All tests passed!
Stopping application instance.
```

* Use the new service protocol message names
  clearVMTimeline
  setVMTimelineFlags
  getVMTimeline
  getVMTimelineFlags

* Fix clearTimeline at another spot.

Default `semanticsEnabled` to true for `testWidgets` and fix associated bugs

* some space formattings

* always use blocks in if-else if a block is used

* format spaces in for and while

* allow multiline if conditions

* fix missing space

* Add semantic label finders

* fix indentof statements in BlockFunctionBody

* fix indentof statements in BlockFunctionBody in tests

* add trailing commas on list/map/parameters

* add trailing commas on Invocation with nb of arg>1

* add commas for widget containing widgets

* add trailing commas if instantiation contains trailing comma

* revert bad change