GitLab

Also increase the time the test is allowed to wait for a video frame. 

TEST= 
BUG=94134

Review URL: http://codereview.chromium.org/7757002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@98691 0039d316-1c4b-4281-b951-d872f2087c98