Modern media controls are affected by a rendering bug (https://bugs.webkit.org/show_bug.cgi?id=163592) that we need to work around.
<rdar://problem/28826022>
Created attachment 291956 [details] Patch
Comment on attachment 291956 [details] Patch Clearing flags on attachment: 291956 Committed r207488: <http://trac.webkit.org/changeset/207488>
All reviewed patches have been landed. Closing bug.