Add enable-video-fullscreen switch.

Corresponding Webkit patch to make this work is here:
https://bugs.webkit.org/show_bug.cgi?id=40317

BUG=16735
TEST=webkitSupportsFullscreen() js call should return true with switch.
(Requires webkit patch)

Review URL: http://codereview.chromium.org/2775001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@49539 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed