Bug 984498 - Plumb audiochannel type from AudioContext to MediaStreamGraph. r=roc, a=1.3+
Bug 984498 - Add new a parameter(audiochannel type) to AudioContext API. r=roc, a=1.3+
Bug 1002986 - Do NOT ack the received system message until being about to handle it. r=gene, a=1.4+
Bug 993930 - Do not assume TabChild::mInnerSize being (0, 0) means it's never been initialized. r=kats, a=1.4+