The method doesn't stop media capture, it mutes it, so rename it to _muteMediaCapture.
<rdar://problem/31589204>
Created attachment 306940 [details] Proposed patch.
Comment on attachment 306940 [details] Proposed patch. Clearing flags on attachment: 306940 Committed r215304: <http://trac.webkit.org/changeset/215304>
All reviewed patches have been landed. Closing bug.