Make mediaPlayerRequestFullscreen() user gesture bypass explicit

mediaPlayerRequestFullscreen() is only ever called from Chromium's
BrowserMediaPlayerManager::OnProtectedSurfaceRequested() when the
--disable-gesture-requirement-for-media-fullscreen flag is used.

Make this behavior explicit, limiting it to just this case instead of
disabling it even for script-initiated fullscreen requests.

This will allow removing the mediaFullscreenRequiresUserGesture setting
once Chromium has been updated.

BUG=355439
TEST=LayoutTests/media/media-player-request-fullscreen.html

Review URL: https://codereview.chromium.org/209693003

git-svn-id: svn://svn.chromium.org/blink/trunk@170080 bbb929c8-8fbe-4397-9dbb-9b2b20218538
7 files changed
tree: 9ef18e05f67584aef7d11940cae1049bc019ccff
  1. third_party/