De-virtual-ize CachedResource::isImage() by using type(). Also replace some explicit type() checks with call to isImage().
Created attachment 222719 [details] Patch v1
Comment on attachment 222719 [details] Patch v1 r=me
Comment on attachment 222719 [details] Patch v1 Clearing flags on attachment: 222719 Committed r163111: <http://trac.webkit.org/changeset/163111>
All reviewed patches have been landed. Closing bug.