Kill Node::ancestorElement() and use Node::parentElement() instead. If our parent is not an Element then none of our ancestors will be.
Created attachment 278684 [details] Patch
Comment on attachment 278684 [details] Patch Clearing flags on attachment: 278684 Committed r200741: <http://trac.webkit.org/changeset/200741>
All reviewed patches have been landed. Closing bug.