The fix for webkit.org/b/113231 disables the code that extends user-interaction based autostarting.
<rdar://problem/13497740>
Created attachment 200908 [details] Patch
Comment on attachment 200908 [details] Patch Clearing flags on attachment: 200908 Committed r149682: <http://trac.webkit.org/changeset/149682>
All reviewed patches have been landed. Closing bug.