Allow files without a video track to AirPlay.
<rdar://problem/21932187>
Created attachment 258204 [details] Proposed patch
Created attachment 258206 [details] Updated patch that might compile.
Comment on attachment 258206 [details] Updated patch that might compile. Clearing flags on attachment: 258206 Committed r187892: <http://trac.webkit.org/changeset/187892>
All reviewed patches have been landed. Closing bug.