Mark svg/zoom/page/zoom-zoom-coords.xhtml as flaky on Mac.

BUG=311469
TBR=pdr

Review URL: https://codereview.chromium.org/45943003

git-svn-id: svn://svn.chromium.org/blink/trunk@160738 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Removing behavior restriction if video enters fullscreen through user gesture

Many of mobile sites rely on the single user gesture to remove playback restrictions and fullscreen restriction
https://codereview.chromium.org/26143002 consumes the gesture event on fullscreen change, which makes youtube broken.
This Cl fixes the problem by removing all the behavior restrictions upon entering fullscreen through user gesture.

BUG=306226

Review URL: https://codereview.chromium.org/42513002

git-svn-id: svn://svn.chromium.org/blink/trunk@160739 bbb929c8-8fbe-4397-9dbb-9b2b20218538