Bug 975681 - Mochitest for MathML mfrac. r=fredw
Bug 975681 - Reftests for MathML mfrac. r=fredw
Bug 986439 - Don't use nsNullPrincipalURI for referrer. r=bz
Bug 986439 - Enable tests that now pass with e10s. r=bz
Bug 989210 - Consistently make cycle collector to deal with TextTrackManager's member variables. r=reyre