Revert "Inject current FlutterView into tree and make available via…

… `View.of(context)` (flutter#116924)" (flutter#117214)

This reverts commit a34e419.

packages/flutter/lib/src/widgets/binding.dart

@@ -19,7 +19,6 @@ import 'framework.dart';
 import 'platform_menu_bar.dart';
 import 'router.dart';
 import 'service_extensions.dart';
-import 'view.dart';
 import 'widget_inspector.dart';
 
 export 'dart:ui' show AppLifecycleState, Locale;
@@ -897,22 +896,6 @@ mixin WidgetsBinding on BindingBase, ServicesBinding, SchedulerBinding, GestureB
   @override
   bool get framesEnabled => super.framesEnabled && _readyToProduceFrames;
 
-  /// Used by [runApp] to wrap the provided `rootWidget` in the default [View].
-  ///
-  /// The [View] determines into what [FlutterView] the app is rendered into.
-  /// For backwards-compatibility reasons, this method currently chooses
-  /// [window] (which is a [FlutterView]) as the rendering target. This will
-  /// change in a future version of Flutter.
-  ///
-  /// The `rootWidget` widget provided to this method must not already be
-  /// wrapped in a [View].
-  Widget wrapWithDefaultView(Widget rootWidget) {
-    return View(
-      view: window,
-      child: rootWidget,
-    );
-  }
-
   /// Schedules a [Timer] for attaching the root widget.
   ///
   /// This is called by [runApp] to configure the widget tree. Consider using
@@ -1031,9 +1014,8 @@ mixin WidgetsBinding on BindingBase, ServicesBinding, SchedulerBinding, GestureB
 ///  * [WidgetsBinding.handleBeginFrame], which pumps the widget pipeline to
 ///    ensure the widget, element, and render trees are all built.
 void runApp(Widget app) {
-  final WidgetsBinding binding = WidgetsFlutterBinding.ensureInitialized();
-  binding
-    ..scheduleAttachRootWidget(binding.wrapWithDefaultView(app))
+  WidgetsFlutterBinding.ensureInitialized()
+    ..scheduleAttachRootWidget(app)
     ..scheduleWarmUpFrame();
 }
 

packages/flutter/lib/widgets.dart

@@ -148,11 +148,8 @@ export 'src/widgets/transitions.dart';
 export 'src/widgets/tween_animation_builder.dart';
 export 'src/widgets/unique_widget.dart';
 export 'src/widgets/value_listenable_builder.dart';
-// TODO(goderbauer): Enable once clean-up in google3 is done.
-// export 'src/widgets/view.dart';
 export 'src/widgets/viewport.dart';
 export 'src/widgets/visibility.dart';
 export 'src/widgets/widget_inspector.dart';
 export 'src/widgets/widget_span.dart';
 export 'src/widgets/will_pop_scope.dart';
-export 'src/widgets/window.dart';

packages/flutter/test/material/debug_test.dart

@@ -8,7 +8,7 @@ import 'package:flutter_test/flutter_test.dart';
 
 void main() {
   testWidgets('debugCheckHasMaterial control test', (WidgetTester tester) async {
-    await tester.pumpWidget(const Center(child: Chip(label: Text('label'))));
+    await tester.pumpWidget(const Chip(label: Text('label')));
     final dynamic exception = tester.takeException();
     expect(exception, isFlutterError);
     final FlutterError error = exception as FlutterError;
@@ -25,7 +25,7 @@ void main() {
     expect(error.diagnostics[3], isA<DiagnosticsProperty<Element>>());
     expect(error.diagnostics[4], isA<DiagnosticsBlock>());
     expect(
-      error.toStringDeep(), startsWith(
+      error.toStringDeep(),
       'FlutterError\n'
       '   No Material widget found.\n'
       '   Chip widgets require a Material widget ancestor within the\n'
@@ -42,13 +42,12 @@ void main() {
       '   The specific widget that could not find a Material ancestor was:\n'
       '     Chip\n'
       '   The ancestors of this widget were:\n'
-      '     Center\n'
-      // End of ancestor chain omitted, not relevant for test.
-    ));
+      '     [root]\n',
+    );
   });
 
   testWidgets('debugCheckHasMaterialLocalizations control test', (WidgetTester tester) async {
-    await tester.pumpWidget(const Center(child: BackButton()));
+    await tester.pumpWidget(const BackButton());
     final dynamic exception = tester.takeException();
     expect(exception, isFlutterError);
     final FlutterError error = exception as FlutterError;
@@ -65,7 +64,7 @@ void main() {
     expect(error.diagnostics[4], isA<DiagnosticsProperty<Element>>());
     expect(error.diagnostics[5], isA<DiagnosticsBlock>());
     expect(
-      error.toStringDeep(), startsWith(
+      error.toStringDeep(),
       'FlutterError\n'
       '   No MaterialLocalizations found.\n'
       '   BackButton widgets require MaterialLocalizations to be provided\n'
@@ -79,9 +78,8 @@ void main() {
       '   ancestor was:\n'
       '     BackButton\n'
       '   The ancestors of this widget were:\n'
-      '     Center\n'
-      // End of ancestor chain omitted, not relevant for test.
-    ));
+      '     [root]\n',
+    );
   });
 
   testWidgets('debugCheckHasScaffold control test', (WidgetTester tester) async {
@@ -235,7 +233,6 @@ void main() {
       '     HeroControllerScope\n'
       '     ScrollConfiguration\n'
       '     MaterialApp\n'
-      '     View-[GlobalObjectKey TestWindow#00000]\n'
       '     [root]\n'
       '   Typically, the Scaffold widget is introduced by the MaterialApp\n'
       '   or WidgetsApp widget at the top of your application widget tree.\n'
@@ -380,7 +377,6 @@ void main() {
       '     Scaffold-[LabeledGlobalKey<ScaffoldState>#00000]\n'
       '     MediaQuery\n'
       '     Directionality\n'
-      '     View-[GlobalObjectKey TestWindow#00000]\n'
       '     [root]\n'
       '   Typically, the ScaffoldMessenger widget is introduced by the\n'
       '   MaterialApp at the top of your application widget tree.\n'

packages/flutter/test/material/scaffold_test.dart

@@ -2458,7 +2458,6 @@ void main() {
       '     Scaffold\n'
       '     MediaQuery\n'
       '     Directionality\n'
-      '     View-[GlobalObjectKey TestWindow#e6136]\n'
       '     [root]\n'
       '   Typically, the ScaffoldMessenger widget is introduced by the\n'
       '   MaterialApp at the top of your application widget tree.\n',

packages/flutter/test/material/text_field_test.dart

@@ -7431,6 +7431,7 @@ void main() {
     final dynamic exception = tester.takeException();
     expect(exception, isFlutterError);
     expect(exception.toString(), startsWith('No Material widget found.'));
+    expect(exception.toString(), endsWith(':\n  $textField\nThe ancestors of this widget were:\n  [root]'));
   });
 
   testWidgets('TextField loses focus when disabled', (WidgetTester tester) async {