This method always returns an object so let's make it a MutableStylePropertySet&.
Created attachment 214453 [details] Patch
Comment on attachment 214453 [details] Patch Attachment 214453 [details] did not pass efl-ews (efl): Output: http://webkit-queues.appspot.com/results/3446019
Created attachment 214455 [details] Patch
Comment on attachment 214455 [details] Patch Clearing flags on attachment: 214455 Committed r157575: <http://trac.webkit.org/changeset/157575>
All reviewed patches have been landed. Closing bug.