Update for Flutter 3.10 beta (#1746)

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I updated/added relevant documentation (doc comments with `///`).
- [ ] All existing and new tests are passing.

---------

Co-authored-by: David Iglesias <ditman@gmail.com>
Co-authored-by: Mark Thompson <2554588+MarkTechson@users.noreply.github.com>
Co-authored-by: John Ryan <ryjohn@google.com>

experimental/material_3_demo/lib/constants.dart

@@ -37,12 +37,18 @@ enum ColorSeed {
 }
 
 enum ColorImageProvider {
-  leaves('Leaves', 'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_1.png'),
-  peonies('Peonies', 'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_2.png'),
-  bubbles('Bubbles', 'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_3.png'),
-  seaweed('Seaweed', 'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_4.png'),
-  seagrapes('Sea Grapes', 'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_5.png'),
-  petals('Petals', 'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_6.png');
+  leaves('Leaves',
+      'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_1.png'),
+  peonies('Peonies',
+      'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_2.png'),
+  bubbles('Bubbles',
+      'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_3.png'),
+  seaweed('Seaweed',
+      'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_4.png'),
+  seagrapes('Sea Grapes',
+      'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_5.png'),
+  petals('Petals',
+      'https://flutter.github.io/assets-for-api-docs/assets/material/content_based_color_scheme_6.png');
 
   const ColorImageProvider(this.label, this.url);
   final String label;

experimental/material_3_demo/lib/main.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/material.dart';
-import 'package:flutter/scheduler.dart';
 
 import 'constants.dart';
 import 'home.dart';
@@ -32,7 +31,7 @@ class _AppState extends State<App> {
   bool get useLightMode {
     switch (themeMode) {
       case ThemeMode.system:
-        return SchedulerBinding.instance.window.platformBrightness ==
+        return View.of(context).platformDispatcher.platformBrightness ==
             Brightness.light;
       case ThemeMode.light:
         return true;

experimental/material_3_demo/pubspec.yaml

@@ -8,7 +8,7 @@ publish_to: "none"
 version: 1.0.0+1
 
 environment:
-  sdk: '>=2.19.5 <4.0.0'
+  sdk: ^3.0.0-0
 
 dependencies:
   flutter:

experimental/material_3_demo/test/color_screen_test.dart

@@ -15,7 +15,7 @@ void main() {
       'Color palettes screen shows correctly when color icon is clicked '
       'on NavigationBar', (tester) async {
     widgetSetup(tester, 449);
-    addTearDown(tester.binding.window.clearPhysicalSizeTestValue);
+    addTearDown(tester.view.resetPhysicalSize);
     await tester.pumpWidget(const App());
 
     expect(find.text('Light ColorScheme'), findsNothing);
@@ -44,7 +44,7 @@ void main() {
       'on NavigationRail', (tester) async {
     widgetSetup(
         tester, 1200); // NavigationRail shows only when width is > 1000.
-    addTearDown(tester.binding.window.clearPhysicalSizeTestValue);
+    addTearDown(tester.view.resetPhysicalSize);
     await tester.pumpWidget(const App());
     await tester.pumpAndSettle();
     expect(find.text('Light ColorScheme'), findsNothing);

experimental/material_3_demo/test/component_screen_test.dart

@@ -37,7 +37,8 @@ void main() {
     expect(find.widgetWithText(FloatingActionButton, 'Create'), findsOneWidget);
 
     // Icon buttons
-    expect(find.widgetWithIcon(IconButton, Icons.settings_outlined), findsNWidgets(8));
+    expect(find.widgetWithIcon(IconButton, Icons.settings_outlined),
+        findsNWidgets(8));
 
     // Segmented buttons
     expect(find.byType(SegmentedButton<Calendar>), findsOneWidget);
@@ -350,8 +351,7 @@ void main() {
 void widgetSetup(WidgetTester tester, double windowWidth,
     {double? windowHeight}) {
   final height = windowHeight ?? 846;
-  tester.binding.window.devicePixelRatioTestValue = (2);
-  final dpi = tester.binding.window.devicePixelRatio;
-  tester.binding.window.physicalSizeTestValue =
-      Size(windowWidth * dpi, height * dpi);
+  tester.view.devicePixelRatio = 2;
+  final dpi = tester.view.devicePixelRatio;
+  tester.view.physicalSize = Size(windowWidth * dpi, height * dpi);
 }

experimental/material_3_demo/test/elevation_screen_test.dart

@@ -15,7 +15,7 @@ void main() {
       'Surface Tones screen shows correctly when the corresponding icon is '
       'selected on NavigationBar', (tester) async {
     widgetSetup(tester, 449);
-    addTearDown(tester.binding.window.clearPhysicalSizeTestValue);
+    addTearDown(tester.view.resetPhysicalSize);
     await tester.pumpWidget(const App());
 
     expect(find.text('Surface Tint Color Only'), findsNothing);
@@ -40,7 +40,7 @@ void main() {
       'selected on NavigationRail', (tester) async {
     widgetSetup(
         tester, 1200); // NavigationRail shows only when width is > 1000.
-    addTearDown(tester.binding.window.clearPhysicalSizeTestValue);
+    addTearDown(tester.view.resetPhysicalSize);
     await tester.pumpWidget(const App());
     expect(find.text('Surface Tint Color Only'), findsNothing);
     Finder tintIconOnRail = find.descendant(

experimental/material_3_demo/test/typography_screen_test.dart

@@ -15,7 +15,7 @@ void main() {
       'Typography screen shows correctly when the corresponding icon is '
       'selected on NavigationBar', (tester) async {
     widgetSetup(tester, 449);
-    addTearDown(tester.binding.window.clearPhysicalSizeTestValue);
+    addTearDown(tester.view.resetPhysicalSize);
     await tester.pumpWidget(const App());
 
     expect(find.text('Display Large'), findsNothing);
@@ -39,7 +39,7 @@ void main() {
       'selected on NavigationRail', (tester) async {
     widgetSetup(
         tester, 1200); // NavigationRail shows only when width is > 1000.
-    addTearDown(tester.binding.window.clearPhysicalSizeTestValue);
+    addTearDown(tester.view.resetPhysicalSize);
     await tester.pumpWidget(const App());
     expect(find.text('Display Large'), findsNothing);
     Finder textIconOnRail = find.descendant(