Re-enable UILayoutTest.MediaUILayoutTest
Re-enable UILayoutTest.MediaUILayoutTest

Media UI layout tests broke because of a WebKit change. This was fixed in
WebKit r79630, so re-enabling the tests now.

BUG=73287
TEST=ui_tests
TBR=scherkus

Review URL: http://codereview.chromium.org/6588019

git-svn-id: http://src.chromium.org/svn/trunk/src@76134 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b03cdef99bb58271fc4c1549c987bac9c8e8ee79
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