0 0 0 Dart

Remove references to `Window`, and switch usages to `PlatformDispatcher` or `SingletonFlutterWindow` (#69617)

* Remove references to dart:ui.Window, and point usages to PlatformDispatcher or SingletonFlutterWindow, as appropriate

* remove new test platform dispatchers

* Amend documentation

Greg Spencer committed 5y ago

bbc0161669677970ff3a7baf03f0e316e5f58e2a

Parent: 3b7718c

Committed by GitHub <noreply@github.com> on 11/9/2020, 11:26:29 PM