The following layout test is flaky on GTK
It is timing out intermittently: http://webkit-test-results.appspot.com/dashboards/flakiness_dashboard.html#revision=152440&tests=media%2Fmedia-element-play-after-eos.html
Same behavior (timing out sometimes) for the test: media/video-duration-known-after-eos.html
The media/media-element-play-after-eos.html test isn't flaky anymore in the most recent 4000 commits, and the media/video-duration-known-after-eos.html test is already tracked (and skipped) in bug 198827.
*** This bug has been marked as a duplicate of bug 198827 ***