Make NotificationCenter / Notification suspendable so that pages using it can enter the PageCache. NotificationCenter can safely be suspended if there are no pending permission requests. Notification can safely be suspended if it is either idle or closed. Radar: <rdar://problem/19923085>
Created attachment 247586 [details] Patch
Comment on attachment 247586 [details] Patch r=me
Comment on attachment 247586 [details] Patch Clearing flags on attachment: 247586 Committed r180871: <http://trac.webkit.org/changeset/180871>
All reviewed patches have been landed. Closing bug.