Backed out changeset e2e27a2e5113 (bug 858723) for mochitest-other failures.
Bug 862092 - "Assertion failure: target->isNative() == obj->isNative()" adopting a <select>. r=bz.

--HG--
extra : rebase_source : 1905aa3aa956a599e9ce1de8866f7dc58feb73be
Bug 708814 -  Introduce a new function "onFullscreenChange" which is called when mozfullscreenchange event takes place and add a timer for hiding videocontrol when fullscreen starts. r=jaws
Bug 861718 - Friendly error about PeerConnection missing in Offline mode. r=jesup
Backed out changeset 409285b3f69c (bug 862092) for mochitest-2 failures on a CLOSED TREE.