Merge branch 'master' into fix/pageController_get_value_error

* master: (23 commits)
  Roll pub packages (flutter#150810)
  Remove reference to `MaterialApp` and `showCupertinoModalPopup` from `CupertinoAlertDialog` (flutter#150725)
  Read `AndroidManifest.xml` and emit `manifest-impeller-(enabled|disabled)` analytics (flutter#150791)
  [flutter_tools] Shut down Chromium cleanly using a command sent through the debug protocol (flutter#150645)
  Reland fix inputDecorator hint color on M3 (flutter#150278)
  Roll Flutter Engine from 62e0b5f9c340 to 94023d711db3 (7 revisions) (flutter#150797)
  Fix collapsed InputDecorator minimum height (flutter#150770)
  Add more warm up frame docs (flutter#150464)
  Roll pub packages (flutter#150739)
  Add `focusNode`, `focusColor`, `onFocusChange`, `autofocus` to `CupertinoButton` (flutter#150721)
  Document RenderObject._relayoutBoundary and its invariant; small refactors (flutter#150527)
  Roll Flutter Engine from 6313b1e5afd7 to 62e0b5f9c340 (1 revision) (flutter#150790)
  fix a typo (flutter#150682)
  Fix link in RenderObjectWidget doc comment (flutter#150600)
  Roll Flutter Engine from fbd92055f3a6 to 6313b1e5afd7 (1 revision) (flutter#150781)
  [tool] make `ErrorHandlingFileSystem.deleteIfExists` catch error code 3 (`ERROR_PATH_NOT_FOUND` on Windows) (flutter#150741)
  Roll Packages from 711b4ac2794e to 03f5f6d5660c (21 revisions) (flutter#150779)
  Roll Flutter Engine from afa7ce19bca8 to fbd92055f3a6 (1 revision) (flutter#150777)
  Reland Add tests for form_text_field.1.dart (flutter#150481) (flutter#150696) (flutter#150750)
  Add an example for CupertinoPopupSurface (flutter#150357)
  ...

bin/internal/engine.version

@@ -1 +1 @@
-be7db94196fee940e319363f7ed0c486a780ae50
+94023d711db3f950a235fd84a80a3dde4dd86338

bin/internal/flutter_packages.version

@@ -1 +1 @@
-711b4ac2794e299e8d8926a269f672b1eba56640
+03f5f6d5660cf1dd77586d207845971ce2bebb93

bin/internal/fuchsia-linux.version

@@ -1 +1 @@
-iU-B6rJxy0wUYSmmp1O7ykcFNnD26n1wW_i9UZ8fT4kC
+WUN7NQK04NjF9fRmfM16ILdIhytQAHB7O1631G4HsIEC

dev/bots/check_code_samples.dart

@@ -325,7 +325,6 @@ final Set<String> _knownMissingTests = <String>{
   'examples/api/test/material/flexible_space_bar/flexible_space_bar.0_test.dart',
   'examples/api/test/material/chip/deletable_chip_attributes.on_deleted.0_test.dart',
   'examples/api/test/material/expansion_panel/expansion_panel_list.expansion_panel_list_radio.0_test.dart',
-  'examples/api/test/material/text_form_field/text_form_field.1_test.dart',
   'examples/api/test/material/scrollbar/scrollbar.1_test.dart',
   'examples/api/test/material/search_anchor/search_anchor.0_test.dart',
   'examples/api/test/material/search_anchor/search_anchor.1_test.dart',

dev/tools/gen_defaults/lib/input_decorator_template.dart

@@ -34,9 +34,9 @@ class _${blockName}DefaultsM3 extends InputDecorationTheme {
   @override
   TextStyle? get hintStyle => MaterialStateTextStyle.resolveWith((Set<MaterialState> states) {
     if (states.contains(MaterialState.disabled)) {
-      return TextStyle(color: Theme.of(context).disabledColor);
+      return TextStyle(color: ${componentColor('md.comp.filled-text-field.disabled.supporting-text')});
     }
-    return TextStyle(color: Theme.of(context).hintColor);
+    return TextStyle(color: ${componentColor('md.comp.filled-text-field.supporting-text')});
   });
 
   @override

docs/engine/Life-of-a-Flutter-Frame.md

@@ -18,7 +18,6 @@ Flutter does some minimal housekeeping when a frame is requested, primarily to i
 
 Once a frame is scheduled, Flutter [waits for a vsync][vsyncWaiter] from the operating system to proceed.
 
-
 ## Building the frame
 
 At the heart of Flutter's graphics workflow is the frame [pipeline][pipeline]. The pipeline is responsible for coordinating work between the UI thread, where the application code runs, and the Raster thread, where rasterization and compositing is performed. See the [threading section][engineArchThreading] of the Engine Architecture wiki for more details on threading in the engine.
@@ -41,6 +40,28 @@ Once a surface is acquired, the [LayerTree][layerTree] is rasterized to the surf
 
 The above process is repeated until the pipeline is empty.
 
+## Warm-up frame
+
+Normally, the Flutter framework begins producing a frame when it receives
+a vsync event from the operating system. However, this may not happen for
+several milliseconds after the app starts (or after a hot reload). To make
+use of the time between when the widget tree is first configured and when
+the engine requests an update, the framework schedules a _warm-up frame_
+using [PlatformDispatcher.scheduleWarmUpFrame][scheduleWarmUpFrame].
+
+A warm-up frame may never actually render (as it invokes
+[FlutterView.render][flutterViewRender] outside of the scope of
+[PlatformDispatcher.onBeginFrame][onBeginFrame] or
+[PlatformDispatcher.onDrawFrame][onDrawFrame]), but it will cause the framework
+to go through the steps of building, laying out, and painting, which can
+together take several milliseconds. Thus, when the engine requests a real frame,
+much of the work will already have been completed, and the framework can
+generate the frame with minimal additional effort.
+
+At startup, a warm-up frame can be produced before the Flutter engine has reported the
+initial view metrics using [PlatformDispatcher.onMetricsChanged][onMetricsChanged].
+As a result, the first frame can be produced with a size of zero.
+
 ## Cleaning up frame resources
 
 TODO(cbracken): write this up using [this patch](https://github.com/flutter/engine/pull/38038) as a reminder.
@@ -53,10 +74,13 @@ TODO(cbracken): write this up using [this patch](https://github.com/flutter/engi
 [handleBeginFrame]: https://api.flutter.dev/flutter/scheduler/SchedulerBinding/handleBeginFrame.html
 [layerTree]: https://github.com/flutter/engine/blob/main/flow/layers/layer_tree.h
 [onBeginFrame]: https://api.flutter.dev/flutter/dart-ui/PlatformDispatcher/onBeginFrame.html
+[onDrawFrame]: https://api.flutter.dev/flutter/dart-ui/PlatformDispatcher/onDrawFrame.html
+[onMetricsChanged]: https://api.flutter.dev/flutter/dart-ui/PlatformDispatcher/onMetricsChanged.html
 [pipeline]: https://github.com/flutter/engine/blob/main/shell/common/pipeline.h
 [rasterizer]: https://github.com/flutter/engine/blob/main/shell/common/rasterizer.h
 [renderingPipelineTalk]: https://www.youtube.com/watch?v=UUfXWzp0-DU
 [scene]: https://api.flutter.dev/flutter/dart-ui/Scene-class.html
+[scheduleWarmUpFrame]: https://api.flutter.dev/flutter/dart-ui/PlatformDispatcher/scheduleWarmUpFrame.html
 [surface]: https://github.com/flutter/engine/blob/main/flow/surface.h
 [scheduleFrame]: https://api.flutter.dev/flutter/dart-ui/PlatformDispatcher/scheduleFrame.html
 [vsyncWaiter]: https://github.com/flutter/engine/blob/main/shell/common/vsync_waiter.h

examples/api/lib/cupertino/dialog/cupertino_alert_dialog.0.dart

@@ -23,9 +23,8 @@ class AlertDialogApp extends StatelessWidget {
 class AlertDialogExample extends StatelessWidget {
   const AlertDialogExample({super.key});
 
-  // This shows a CupertinoModalPopup which hosts a CupertinoAlertDialog.
   void _showAlertDialog(BuildContext context) {
-    showCupertinoModalPopup<void>(
+    showCupertinoDialog<void>(
       context: context,
       builder: (BuildContext context) => CupertinoAlertDialog(
         title: const Text('Alert'),

examples/api/lib/cupertino/dialog/cupertino_popup_surface.0.dart

@@ -0,0 +1,105 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/cupertino.dart';
+
+/// Flutter code sample for [CupertinoPopupSurface].
+
+void main() => runApp(const PopupSurfaceApp());
+
+class PopupSurfaceApp extends StatelessWidget {
+  const PopupSurfaceApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const CupertinoApp(
+      home: PopupSurfaceExample(),
+    );
+  }
+}
+
+class PopupSurfaceExample extends StatefulWidget {
+  const PopupSurfaceExample({super.key});
+
+  @override
+  State<PopupSurfaceExample> createState() => _PopupSurfaceExampleState();
+}
+
+class _PopupSurfaceExampleState extends State<PopupSurfaceExample> {
+  bool _shouldPaintSurface = true;
+
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      child: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: <Widget>[
+            Row(
+              mainAxisSize: MainAxisSize.min,
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+              children: <Widget>[
+                const Text('Paint surface'),
+                const SizedBox(width: 16.0),
+                CupertinoSwitch(
+                  value: _shouldPaintSurface,
+                  onChanged: (bool value) => setState(() => _shouldPaintSurface = value),
+                ),
+              ],
+            ),
+            CupertinoButton(
+              onPressed: () => _showPopupSurface(context),
+              child: const Text('Show popup'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  void _showPopupSurface(BuildContext context) {
+    showCupertinoModalPopup<void>(
+      context: context,
+      builder: (BuildContext context) {
+        return CupertinoPopupSurface(
+          isSurfacePainted: _shouldPaintSurface,
+          child: Container(
+            height: 240,
+            padding: const EdgeInsets.all(8.0),
+            child: Column(
+              children: <Widget>[
+                Expanded(
+                  child: Container(
+                    alignment: Alignment.center,
+                    decoration: _shouldPaintSurface
+                        ? null
+                        : BoxDecoration(
+                            color: CupertinoTheme.of(context).scaffoldBackgroundColor,
+                            borderRadius: BorderRadius.circular(8.0),
+                          ),
+                    child: const Text('This is a popup surface.'),
+                  ),
+                ),
+                const SizedBox(height: 8.0),
+                SizedBox(
+                  width: double.infinity,
+                  child: CupertinoButton(
+                    color: _shouldPaintSurface
+                        ? null
+                        : CupertinoTheme.of(context).scaffoldBackgroundColor,
+                    onPressed: () => Navigator.pop(context),
+                    child: const Text(
+                      'Close',
+                      style: TextStyle(color: CupertinoColors.systemBlue),
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+        );
+      },
+    );
+  }
+}

examples/api/test/cupertino/dialog/cupertino_popup_surface.0_test.dart

@@ -0,0 +1,70 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter_api_samples/cupertino/dialog/cupertino_popup_surface.0.dart'
+    as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('CupertinoPopupSurface displays expected widgets in init state',
+      (WidgetTester tester) async {
+    await tester.pumpWidget(const example.PopupSurfaceApp());
+
+    final Finder cupertinoButton = find.byType(CupertinoButton);
+    expect(cupertinoButton, findsOneWidget);
+
+    final Finder cupertinoSwitch = find.byType(CupertinoSwitch);
+    expect(cupertinoSwitch, findsOneWidget);
+  });
+
+  testWidgets('CupertinoPopupSurface is displayed with painted surface',
+      (WidgetTester tester) async {
+    await tester.pumpWidget(const example.PopupSurfaceApp());
+
+    // CupertinoSwitch is toggled on by default.
+    expect(tester.widget<CupertinoSwitch>(find.byType(CupertinoSwitch)).value, isTrue);
+
+    // Tap on the CupertinoButton to show the CupertinoPopupSurface.
+    await tester.tap(find.byType(CupertinoButton));
+    await tester.pumpAndSettle();
+
+    // Make sure CupertinoPopupSurface is showing.
+    final Finder cupertinoPopupSurface = find.byType(CupertinoPopupSurface);
+    expect(cupertinoPopupSurface, findsOneWidget);
+
+    // Confirm that CupertinoPopupSurface is painted with a ColoredBox.
+    final Finder coloredBox = find.descendant(
+      of: cupertinoPopupSurface,
+      matching: find.byType(ColoredBox),
+    );
+    expect(coloredBox, findsOneWidget);
+  });
+
+  testWidgets('CupertinoPopupSurface is displayed without painted surface',
+      (WidgetTester tester) async {
+    await tester.pumpWidget(const example.PopupSurfaceApp());
+
+    // Toggling off CupertinoSwitch and confirm its state.
+    final Finder cupertinoSwitch = find.byType(CupertinoSwitch);
+    await tester.tap(cupertinoSwitch);
+    await tester.pumpAndSettle();
+    expect(tester.widget<CupertinoSwitch>(cupertinoSwitch).value, isFalse);
+
+    // Tap on the CupertinoButton to show the CupertinoPopupSurface.
+    await tester.tap(find.byType(CupertinoButton));
+    await tester.pumpAndSettle();
+
+    // Make sure CupertinoPopupSurface is showing.
+    final Finder cupertinoPopupSurface = find.byType(CupertinoPopupSurface);
+    expect(cupertinoPopupSurface, findsOneWidget);
+
+    // Confirm that CupertinoPopupSurface is not painted with a ColoredBox.
+    final Finder coloredBox = find.descendant(
+      of: cupertinoPopupSurface,
+      matching: find.byType(ColoredBox),
+    );
+    expect(coloredBox, findsNothing);
+  });
+}

examples/api/test/material/text_form_field/text_form_field.1_test.dart

@@ -0,0 +1,58 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_api_samples/material/text_form_field/text_form_field.1.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Pressing space should focus the next field', (WidgetTester tester) async {
+    await tester.pumpWidget(const example.TextFormFieldExampleApp());
+    final Finder textFormField = find.byType(TextFormField);
+
+    expect(textFormField, findsExactly(5));
+
+    final Finder editableText = find.byType(EditableText);
+    expect(editableText, findsExactly(5));
+
+    List<bool> getFocuses() {
+      return editableText.evaluate()
+        .map((Element finderResult) => (finderResult.widget as EditableText).focusNode.hasFocus)
+        .toList();
+    }
+
+    expect(getFocuses(), const <bool>[false, false, false, false, false]);
+
+    await tester.tap(textFormField.first);
+    await tester.pump();
+
+    expect(getFocuses(), const <bool>[true, false, false, false, false]);
+
+    await tester.sendKeyEvent(LogicalKeyboardKey.space);
+    await tester.pump();
+
+    expect(getFocuses(), const <bool>[false, true, false, false, false]);
+
+    await tester.sendKeyEvent(LogicalKeyboardKey.space);
+    await tester.pump();
+
+    expect(getFocuses(), const <bool>[false, false, true, false, false]);
+
+    await tester.sendKeyEvent(LogicalKeyboardKey.space);
+    await tester.pump();
+
+    expect(getFocuses(), const <bool>[false, false, false, true, false]);
+
+    await tester.sendKeyEvent(LogicalKeyboardKey.space);
+    await tester.pump();
+
+    expect(getFocuses(), const <bool>[false, false, false, false, true]);
+
+    await tester.sendKeyEvent(LogicalKeyboardKey.space);
+    await tester.pump();
+
+    expect(getFocuses(), const <bool>[true, false, false, false, false]);
+  });
+}