Repository: flutter
Issue: [webview] Android Talk Back cannot focus on widgets via tap if they are over platformview
Labels: platform-android,framework,a: accessibility,a: quality,a: platform-views,f: focus,has reproducible steps,P2,found in release: 2.10,found in release: 2.13,team-android,triaged-android

Internal: b/292548501

## Steps to Reproduce

1. create an App with a fullscreen webView
2. add an `initialUrl` for the webView
3. add an `AppBar` and a `Drawer` to the `Scaffold`
4. add a ListView with eg. 10 `ListTile` and a title `Text`
5. run app on an Android Device
6. start android Talk Back
7. after loading the `initialUrl` open the drawer menu
8. try to select text Items in the drawer menu  

**Expected results:** a selection border is shown around the ListTile, Talk Back is reading the Text

**Actual results:** The WebView is catching the tap events. Tapping the ListTile is not possible.

```
[✓] Flutter (Channel stable, 2.10.3, on macOS 12.3.1 21E258 darwin-x64, locale de-DE)
    • Flutter version 2.10.3 at /Users/mraguse/fvm/versions/2.10.3
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 7e9793dee1 (6 weeks ago), 2022-03-02 11:23:12 -0600
    • Engine revision bd539267b4
    • Dart version 2.16.1
    • DevTools version 2.9.2

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /Users/mraguse/Library/Android/sdk
    • Platform android-31, build-tools 30.0.3
    • ANDROID_HOME = /Users/mraguse/Library/Android/sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.11+0-b60-7590822)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 13.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • CocoaPods version 1.11.3

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2021.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.11+0-b60-7590822)

[✓] VS Code (version 1.66.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.38.1

[✓] Connected device (3 available)
    • iPhone 8 Plus (mobile) • 0B4AFAE1-FAD7-47F2-B2FB-F3D9607EAC99 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-15-4 (simulator)
    • macOS (desktop)        • macos                                • darwin-x64     • macOS 12.3.1 21E258 darwin-x64
    • Chrome (web)           • chrome                               • web-javascript • Google Chrome 100.0.4896.88

[✓] HTTP Host Availability
    • All required HTTP hosts are available

• No issues found!

```

 
```dart
import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';

void main() {
  runApp(
    MaterialApp(
      home: Scaffold(
        appBar: AppBar(),
        drawer: Drawer(
          child: ListView.builder(
            itemCount: 10,
            itemBuilder: (_, __) => const ListTile(
              title: Text('Hallo World'),
            ),
          ),
        ),
        body: const WebView(
          initialUrl: 'https://www.google.de',
        ),
      ),
    ),
  );
}
```