Bug 857690 - Introduce xpc::ZoneStatsExtras and xpc::CompartmentStatsExtras. r=njn
Backed out changesets 715fce49a07b and abbc05319449 (bug 851916) for B2G mochitest-2 orange.

--HG--
rename : dom/imptests/webapps/DOMCore/tests/submissions/Ms2ger/ChildNode-remove.js => dom/imptests/webapps/DOMCore/tests/submissions/Ms2ger/test_ChildNode-remove.js
Bug 841228 - Defect - Hover state on buttons (like the bookmark star) persists after you tap the button. r=jimm
Bug 842130 - Fix fullscreen video which currently isn't working. r=mbrubeck
Bug 850458 - Add full screen video element to html5 video controls. r=mbrubeck
Bug 855590 - Start page does not refresh app bar Star button state. r=sfoster
Bug 854269 - Pin still selected when pressing Bac or Forward buttons. r=sfoster
Backed out changeset cbed4fe28c54 (bug 858084) for talos bustage.
Bug 847983 - Skip script text nodes for content events; r=masayuki
Bug 847983 - Don't include empty elements at end of range; r=masayuki
Bug 847983 - Try harder to get a valid frame; r=masayuki
Backed out changeset 4081996a7420 (bug 855276) for mochitest-other orange on a CLOSED TREE.