LayoutTest media/modern-media-controls/mute-button/mute-button.html is a flaky timeout https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK1%20(Tests)/r209243%20(10066)/results.html https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=media%2Fmodern-media-controls%2Fmute-button%2Fmute-button.html
Timed out once since turning modern media controls on by default.
This test is still flaky on macOS WK1. Reopening.
<rdar://problem/30809600>
Created attachment 303209 [details] Patch
Comment on attachment 303209 [details] Patch Clearing flags on attachment: 303209 Committed r213289: <http://trac.webkit.org/changeset/213289>
All reviewed patches have been landed. Closing bug.