Created attachment 213167 [details] Repro Computing widows can generate an infinite loop in certain cases.
I think it would be useful to have a brief description of at least one case where this happens.
Created attachment 213278 [details] Patch
Comment on attachment 213278 [details] Patch r=me
Comment on attachment 213278 [details] Patch Clearing flags on attachment: 213278 Committed r156881: <http://trac.webkit.org/changeset/156881>
All reviewed patches have been landed. Closing bug.