REGRESSION (r141281): Navigating to this HTTP Live Streaming (application/vnd.apple.mpegurl) URL downloads a file instead of playing it in the browser
Created attachment 186101 [details] Patch
<rdar://problem/13133595>
Created attachment 186102 [details] Patch Swapped order of src,dest in concatenateHashSets.
Committed r141630: <http://trac.webkit.org/changeset/141630>