When go back/forward, if the page was in page cache, it would have no chance to send favicon. So we'll send it in commitLoad right after send the blank icon.
Created attachment 153395 [details] Patch
Comment on attachment 153395 [details] Patch Clearing flags on attachment: 153395 Committed r123179: <http://trac.webkit.org/changeset/123179>
All reviewed patches have been landed. Closing bug.