[webview_flutter] "Video playback policy Auto media playback" drive test failing often and blocking tree

[vashworth]

This test fails seemingly pretty often and is currently blocking the tree. Seems like it's causing the device to die or something

00:53 +0: loading /b/s/w/ir/x/w/packages/packages/webview_flutter/webview_flutter/example/integration_test/webview_flutter_test.dart                                                                   
...
01:01 +6: Video playback policy Auto media playback                                                                                                                                                    adb: device offline
 adb uninstall failed: ProcessException: Process exited abnormally with exit code 1:
 adb: device offline
   Command: /b/s/w/ir/cache/android/sdk/platform-tools/adb -s emulator-5554 uninstall io.flutter.plugins.webviewflutterexample

https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20stable/1200/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20stable/1201/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20stable/1202/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20stable/1203/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20stable/1204/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20master/1199/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20master/1197/overview
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux_android%20android_platform_tests_shard_6%20stable/1192/overview

[vashworth]

If Video playback policy Auto media playback is skipped, Video playback policy Video plays inline will then also fail with same error

https://ci.chromium.org/ui/p/flutter/builders/try/Linux_android%20android_platform_tests_shard_1%20master/8233/overview
https://ci.chromium.org/ui/p/flutter/builders/try/Linux_android%20android_platform_tests_shard_1%20master/8232/overview

[vashworth]

Temporarily skipping all Video playback policy tests to unblock tree: flutter/packages#6747