Don't disconnect WebAVPlayerController from its delegate since there is no way to reconnect it.
Created attachment 278066 [details] Patch
rdar://problem/25879521
Created attachment 278106 [details] Patch
Comment on attachment 278106 [details] Patch Clearing flags on attachment: 278106 Committed r200432: <http://trac.webkit.org/changeset/200432>
All reviewed patches have been landed. Closing bug.