RenderCounter has a willBeDestroyed() hook, but it doesn't actually need it. It was done that way originally because there were no guarantees about calling RenderObject::view() in a renderer destructor. These days that's not a problem. Even if you are the RenderView. For real.
Created attachment 240863 [details] Patch
Comment on attachment 240863 [details] Patch Clearing flags on attachment: 240863 Committed r175485: <http://trac.webkit.org/changeset/175485>
All reviewed patches have been landed. Closing bug.