Ignore MediaController in the video fullscreen button logic
There were three problems:
1. When fullScreenEnabled() was false, HTMLMediaElement's
enterFullscreen() was used as a fallback, but that function checks
the setting and does nothing. This has been the case since cleanup
from April 2013, r149489: https://codereview.chromium.org/14670004
2. MediaController's hasVideo() returned true if any of the slave
elements had video, which could show the button for a video element
with no video.
3. The fullscreen button didn't do anything for slaved media elements.
The added tests verify that (1) no fullscreen button is shown when the
fullscreen feature is disabled or (2) when there is no video track, and
(3) that clicking the fullscreen button actually enters fullscreen.
BUG=351661
Review URL: https://codereview.chromium.org/196793021
git-svn-id: svn://svn.chromium.org/blink/trunk@169429 bbb929c8-8fbe-4397-9dbb-9b2b20218538
14 files changed
