[Mac] HLS <video> will not fire 'progress' events, only 'stalled'.
<rdar://problem/19726925>
Created attachment 246084 [details] Patch
Comment on attachment 246084 [details] Patch r=me.
Comment on attachment 246084 [details] Patch Clearing flags on attachment: 246084 Committed r179699: <http://trac.webkit.org/changeset/179699>
All reviewed patches have been landed. Closing bug.