[CTTE] The WebPageProxy's WebPageGroup is never null so it should be stored in a Ref
Created attachment 218100 [details] Patch
Comment on attachment 218100 [details] Patch Attachment 218100 [details] did not pass efl-wk2-ews (efl-wk2): Output: http://webkit-queues.appspot.com/results/39058237
Committed r159896: <http://trac.webkit.org/changeset/159896>