Missing default focus when navigating to a page with no SemanticsNode that sets namesRoute:true (#20516)

* Hint the VM when a layer or picture goes out of scope

* update chrome version, should be merged after recipe changes

* changing directory to use chrome driver in LUCI

* changing directory path's order

* add cipd packages's chrome version for mac

* addressing reviewer comments

* more documentation. update readme

* remove late since it didn't build. remove distinction in paths for local and LUCI.

* addressing reviewer comments. (non-null fields needs rechanging)

* addressing reviewer comments. adding 2.6 on files missing the notation

Skia is removing the ctors on these structs so removing them.

Adds APIs for runners to delegate WindowProc handlers into the Flutter
engine, and for plugins to register as possible delegates.

This allows for plugins to alter top-level window behavior in ways that
can only be done from the WindowProc, such as resize control. This
functionality remains entirely on the native side, so is synchronous.

Part of https://github.com/flutter/flutter/issues/53168

* Remove doc comments in copied web interfaces

* Whitespace changes to improve readability

* rename "compositor"/"surface" to "canvaskit"/"html"; document conventions

This converts the ci/format.sh script to a Dart script that uses process_runner and isolates to multi-process the clang-format, diffs, and grepping needed to do the formatting changes.

It also will (by default) only check the formatting of changed files.

The user can optionally check all files (--all-files) or do only some types of checks with --check. --verbose prints the versions of the tools used for Clang format and Java format.

Specifying --fix will cause any formatting errors that would have been detected to be fixed.

* Revert harfbuzz 2.7.0, which broke Khmer rendering

This reverts commit 0b330467.

Bug:
  https://github.com/flutter/flutter/issues/55326

* change from build_runner to dart2js

* add internalBootstrapBrowserTest to some of the tests

* add internalBootstrapBrowserTest to all remaining tests

* make tests build in paralel. Total time dropped from 586 to 177 seconds for 8 core MacBook

* change isolates with pool

* fixing analysis errors

* skipping canvaskit tests for ios-safari

* copy image files to the build directory

* adding internalBootstrapBrowserTest to newly added tests

* add internalBootstrapBrowserTest to faling path iterator test

* necessary changes to make chrome windows work

* in windows test in chrome instead of edge. our edge code was for legacy edge

* do not run golden unit tests on Windows LUCI bots for now

* addressing reviewer comments. Adding a method for deciding when to run integration tests.

* remove lines that I forgot to remove

* fixing analysis error. add issue for todo

* add bootstap to a test file

* adding bootstrap to another test

* add internalBootstrapBrowserTest to a golden test

* return test result in bat file. use archieve package to unzip

* fixing logs for chrome_installer

* use archieve and archieve entity instead of dynamic

* adding comments for windows platform archieve part

* addressing reviewer comments

* change readme file