Patch forthcoming.
Created attachment 191823 [details] the patch
Comment on attachment 191823 [details] the patch r=me
Created attachment 191839 [details] the patch
Comment on attachment 191839 [details] the patch r=me
Landed in http://trac.webkit.org/changeset/144989
Actually, this is wrong.
Rolled out in http://trac.webkit.org/changeset/144991