I meant to do this last weekend, but as discussed on webkit-dev, here's the switch from GStreamer to my stub implementation of Media Foundation-based video.
Created attachment 230424 [details] Patch
Comment on attachment 230424 [details] Patch Looks good to me. r+
Comment on attachment 230424 [details] Patch Clearing flags on attachment: 230424 Committed r167971: <http://trac.webkit.org/changeset/167971>
All reviewed patches have been landed. Closing bug.