As long as drawsContent is false we should ignore requests for repaints. A full repaint will be requested anyway when drawsContent is set true. This also matches Chromium and CF behavior.
Created attachment 190302 [details] Patch
Comment on attachment 190302 [details] Patch Clearing flags on attachment: 190302 Committed r144078: <http://trac.webkit.org/changeset/144078>
All reviewed patches have been landed. Closing bug.