REGRESSION (r218757): Touch Bar's media scrubber timeline runs from 00:00 to 00:00 and has no playhead
<rdar://problem/33064925>
Created attachment 314278 [details] Patch
<rdar://problem/33067203>
Comment on attachment 314278 [details] Patch Clearing flags on attachment: 314278 Committed r219011: <http://trac.webkit.org/changeset/219011>
All reviewed patches have been landed. Closing bug.