This improves the ability to debug focus manager issues. It's not meant to be used by developers unless they're debugging problems with the focus manager itself.

Fix a bug in CupertinoTextField where resizeToAvoidBottomInset didn't work.

This reverts commit 92ef2b9c.

This requires either runApp() or
WidgetsFlutterBinding.ensureInitialized() to have been called before
using any MethodChannels. Plugins broadly rely on MethodChannels and
right now there's no general requirements that they be constructed
within the runApp call, so the ecosystem breakages from this are broader
than originally thought. Reverting for now.

Vibrate when starting scrollbar dragging.

* Add checkColor to CheckboxListTile

* Create second paint for drawing check and dash

* Add activeColor test for Checkbox
Co-Authored-By: Shi-Hao Hong <shihaohong@google.com>

This reverts commit 3a2d3081.

TimelineEvents may not be sent if there aren't enough to form a group.
Hence we should always use ExtensionEvent as the trigger.

See also https://github.com/flutter/flutter/pull/37503

This reverts commit b39e315e.

[web][upstream] Don't register exit/saveCompilationTrace for web platform since they are not available (#37812)

* Don't register N/A services exit/saveCompilationTrace for web platform

This PR fixes an issue where MouseRegion crashes when being passed with closures instead of methods.

It changes how a RenderMouseRegion handles its MouseTrackingAnnotation.

Instead of creating a new annotation every time it becomes active and destroys it when deactivated, it now creates an annotation during the constructor and holds onto it until the end of its lifecycle.
Instead of directly passing the argument callbacks to the annotation, it proxies them using methods.

Fix an issue where MouseRegion will render its children twice.

(Breaking Change) Move some hardcoded pixel values to reusable constants.

See https://github.com/flutter/flutter/issues/37423

Guard removePointer with addTearDown to avoid cascading test crash.

Provide a new ThemeData.from() method that constructs a Theme based off the colors in a given ColorScheme.

* [web][upstream] Fix debugPrintStack for web platform

Fixes: https://github.com/flutter/flutter/issues/37488

* Upstream web support for IterableProperty<double>

This PR creates a new material widget for the Banner component. This includes a theme as well. This widget can be dropped into any application, ideally at the top of a listview or scrollview.