Adding a new property is surprisingly difficult if you are trying to get garbage collection behavior right.
Created attachment 214190 [details] proposed patch
Comment on attachment 214190 [details] proposed patch Attachment 214190 [details] did not pass efl-ews (efl): Output: http://webkit-queues.appspot.com/results/3945864
Comment on attachment 214190 [details] proposed patch Attachment 214190 [details] did not pass efl-wk2-ews (efl-wk2): Output: http://webkit-queues.appspot.com/results/3946927
Comment on attachment 214190 [details] proposed patch r=me with build happiness
Created attachment 214196 [details] patch for EWS
Windows build failed, but it's doesn't appear to be because of this patch.
Comment on attachment 214196 [details] patch for EWS Rejecting attachment 214196 [details] from commit-queue. Failed to run "['/Volumes/Data/EWS/WebKit/Tools/Scripts/webkit-patch', '--status-host=webkit-queues.appspot.com', '--bot-id=webkit-cq-01', 'validate-changelog', '--check-oops', '--non-interactive', 214196, '--port=mac']" exit_code: 1 cwd: /Volumes/Data/EWS/WebKit ChangeLog entry in LayoutTests/ChangeLog contains OOPS!. Full output: http://webkit-queues.appspot.com/results/3951874
Created attachment 214203 [details] patch for landing
Comment on attachment 214203 [details] patch for landing Clearing flags on attachment: 214203 Committed r157430: <http://trac.webkit.org/changeset/157430>
All reviewed patches have been landed. Closing bug.