isEditablePosition currently triggers synchronous layout but it shouldn't.
Created attachment 224594 [details] Fixes the bug
Comment on attachment 224594 [details] Fixes the bug r=me
Comment on attachment 224594 [details] Fixes the bug Clearing flags on attachment: 224594 Committed r164387: <http://trac.webkit.org/changeset/164387>
All reviewed patches have been landed. Closing bug.