Bug 744745 - Prevent overlay being made transparent from site CSS. r=jaws,a=akeybl
Bug 792274 - Don't setup mediastreams in RecreateDecodedStream() if we did not have a mediastream before. r=roc, a=bajaj
Bug 822858. r=billm, a=bajaj
Bug 818009 - canActivate: only click-to-play-type plugins are valid. r=jaws, ba=akeybl