GitLab

This is designed to attract attention to the system tray icon which
can be hidden in the overflow area.

BUG=246322

Review URL: https://chromiumcodereview.appspot.com/17286015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@208031 0039d316-1c4b-4281-b951-d872f2087c98