Bug 264517 - Move the _LAYOUT variant of COMPUTED_STYLE_MAP_ENTRY into a property bit. r=dbaron
Bug 867823 - Implement TextTrack Add/RemoveCue. r=rillian

- Updated RemoveCue to throw NotFoundError if the cue being removed is
not in the cue list.
- Updated AddCue to not add cues that are already in the list. This is
done by reference comparing.
Bug 868611 - Implement HTMLTrackElement::UnbindFromTree. r=rillian

Update HTMLTrackElement::UnbindFromTree to remove its TextTrack from
its HTMLMediaElement's list of TextTracks.
Bug 912379 - Unwrap before translating StopIteration. r=mrbkap

The current setup means that we have different cache behavior for StopIteration
depending on whether we're wrapping StopIteration itself or a CCW to one. We
need to maintain cache invariants for optimizations now, so this is verboten.
Shuffle some code.
Bug 912959 - libxul.so link fails - ToNumberSlow() is built as a hidden symbol. r=luke
Bug 917945 - Part 1: Expose TextTrackRegion* as VTTRegion*. r=rillian, r=bz

--HG--
rename : dom/webidl/TextTrackRegion.webidl => dom/webidl/VTTRegion.webidl
rename : dom/webidl/TextTrackRegionList.webidl => dom/webidl/VTTRegionList.webidl
Bug 917945 - Part 2: Add RegionId attribute to VTTCue. r=rillian
Bug 917945 - Part 3: Add VTTRegions to its TextTrack upon receiving them. r=rillian, r=bz
Bug 918942 - Add label in DrawWindowOverlay to diagnose potential ANR dead locks. r=jmuizelaar