Mac fullscreen: prevent mouse clicks on overlay from passing through to content.
Mac fullscreen: prevent mouse clicks on overlay from passing through to content.

Also make it so that double-clicks on overlay should (theoretically) minimize.

BUG=36108
TEST=Enter fullscreen mode. With content having links or similar (e.g., NTP bookmark bar), click at various locations on the (slide-down) overlay bar. Clicks should not pass through. Mouse cursor should not reflect web content underneath.

Review URL: http://codereview.chromium.org/646004

git-svn-id: http://src.chromium.org/svn/trunk/src@39382 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ee0ab059f21d6c0477e0a47af68ab2dfc79d72ab
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser