Move create() methods from StylePropertySet to MutableStylePropertySet.
Created attachment 197955 [details] Patch
Comment on attachment 197955 [details] Patch Attachment 197955 [details] did not pass efl-ews (efl): Output: http://webkit-queues.appspot.com/results/102260
Comment on attachment 197955 [details] Patch Attachment 197955 [details] did not pass gtk-ews (gtk): Output: http://webkit-queues.appspot.com/results/31454
Created attachment 197984 [details] Patch for landing
Comment on attachment 197984 [details] Patch for landing Clearing flags on attachment: 197984 Committed r148395: <http://trac.webkit.org/changeset/148395>
All reviewed patches have been landed. Closing bug.