Regarding the @-webkit-filter rule, window.WebKitCSSFilterRule is currently undefined.
Created attachment 186910 [details] Patch for Review
Comment on attachment 186910 [details] Patch for Review Thanks Dean! Setting cq+.
Comment on attachment 186910 [details] Patch for Review Clearing flags on attachment: 186910 Committed r142149: <http://trac.webkit.org/changeset/142149>
All reviewed patches have been landed. Closing bug.