* remove the extra values which was overshadowing the test result

* increase difference. canvaskit gives different results

* increase difference more. firefox gave 1.7 diff. add comments

Limit heap growth to half of totalMem by default, with the option to set it higher or lower in the AndroidManifest

This reverts commit d37b8621, relanding #22267, now that flutter/flutter#70252 has landed to prevent the problems it had the first time.

Here is the original PR description:

For some reason (probably a bad merge on my part), the return values for locale and locales are not the same on web as they are on other platforms for the PlatformDispatcher and SingletonFlutterWindow classes. The web versions are non-nullable and the others are nullable.

This converts them to be the same (non-nullable) values

Instead of synchronousResizing flag which in some cases seems to be set too early, synchronous resizing is postponed until framework produces a frame so ResizeSynchronizer knows for sure that the engine is up and running.

FontLanguageListCache.cpp uses the ICU constant FALSE of type UBool, but
does not #include <umachine.h> where it is defined.

This makes the code brittle with respect to header file reorganization,
and I found this while trying to roll ICU version 68.1 to Flutter
engine.

For https://github.com/flutter/flutter/issues/70349

* Revert "Remove GetExternalViewEmbedder from surface (#22272)"

This reverts commit 5419f70f.

* Revert "Rasterizer is initialized with an external view embedder (#22405)"

This reverts commit f95df42e.

This reverts commit dc886418.

Revert "[Android Text Input] Make the editing state listenable and allow batch edits  (#21534)" (#22434)

* testing running the tests on all build modes

* don't run debug mode on other browsers

* fix platform message test failures

* some cleanup. change dispose platform channel message

* adding flags to control the integration tests better with felt

* running tests by target name, selecting web rendering backend

* fix conditions

* carrying some conditions to helper methods. Adding comments

* create a blocked list for failing canvaskit test

* parse parameters before all integration tests

* Give better warning to developers for tests that are blocked for CI

* address some reviwer comments (more remains)

* remove named parameters

* also run with auto mode

* add verbose option

* reduce the number of tests running. skip url_test for now

For some reason (probably a bad merge on my part), the return values for locale and locales are not the same on web as they are on other platforms for the PlatformDispatcher and SingletonFlutterWindow classes. The web versions are non-nullable and the others are nullable.

This converts them to be the same (non-nullable) values.

* Revert "Revert "support uri intent launcher in android (#21275)" (#22298)"

This reverts commit f61cbc05.

* reland support uri launch for android

* refactor

* update

* fix test

* addressing comments

* addressing comments

* revert throw error