[MSE][Mac] Destroy the AVStreamDataParser when the SourceBuffer is removed from its MediaSource.
Created attachment 231105 [details] Patch
Created attachment 231158 [details] Patch Re-attaching now that bug #132698 is fixed.
Comment on attachment 231158 [details] Patch Clearing flags on attachment: 231158 Committed r168536: <http://trac.webkit.org/changeset/168536>
All reviewed patches have been landed. Closing bug.