Backed out changeset 9f852d187722 (bug 883789)
Bug 882111 - Don't push an interpreter frame when calling into the JITs. r=djvj
bug 882132 fix setting provider icon via worker api, r=felipe
Bug 884628 - Optimize the post-barrier verifier; r=jonco

--HG--
extra : rebase_source : 2390400416c85daecd34d1456ebf737dd2308128
Bug 882858 - Add a "showing" notification to PopupNotifications, r=jaws sr=gavin