As discussed on webkit-dev.
Created attachment 41198 [details] Patch v1
Comment on attachment 41198 [details] Patch v1 Oops. Somehow deleted the FrameView destructor!
Created attachment 41200 [details] Patch v1
Comment on attachment 41200 [details] Patch v1 Having the commit-queue land this because I'm working on the next patch in the sequence.
Comment on attachment 41200 [details] Patch v1 Clearing flags on attachment: 41200 Committed r49608: <http://trac.webkit.org/changeset/49608>
All reviewed patches have been landed. Closing bug.