Stop setting --enable-overlay-fullscreen-video on Android
Previously, --enable-overlay-fullscreen-video was used to enable the
blink runtime feature OverlayFullscreenVideo which enabled video to be
efficiently {over,under}-layed on Android. This was set by default on
Android and for layout tests on other platforms. Now the WebMediaPlayer
decides whether overlay fullscreen mode will be used. The blink runtime
feature is renamed to ForceOverlayFullscreenVideo to be used as an
override for running the overlay fullscreen layout tests on non-android
platforms.
This relies on blink changes:
* https://codereview.chromium.org/1254613003
* https://codereview.chromium.org/1278583004
A follow up change will remove the OverlayFullscreenVideo runtime
feature and corresponding command line flag.
BUG=511376,507834
TEST=virtual/android/fullscreen layout tests, manual
Review URL: https://codereview.chromium.org/1286583002
Cr-Commit-Position: refs/heads/master@{#343064}
9 files changed
