Since r143295 visibleContentRect() receives an enum, not a boolean.
Created attachment 192899 [details] Patch
Comment on attachment 192899 [details] Patch Ok.
Comment on attachment 192899 [details] Patch Clearing flags on attachment: 192899 Committed r145792: <http://trac.webkit.org/changeset/145792>
All reviewed patches have been landed. Closing bug.