Attr is a friend class of Element and does some pretty hairy stuff to invoke attribute modification callbacks.
This could easily be cleaned up.
Created attachment 189756 [details]
Comment on attachment 189756 [details]
Clearing flags on attachment: 189756
Committed r143834: <http://trac.webkit.org/changeset/143834>
All reviewed patches have been landed. Closing bug.
Re-opened since this is blocked by bug 113530