Bug 996465 - Extract code running state machine cycles into a class. r=cpearce
Bug 996465 - Add ability to delay running state machine cycles for synchronization between decoding/main and state machine threads. r=cpearce
Bug 996465 - Enable test_fragment_play.html. r=cpearce
Bug 1034477 - Save stacks that cross contexts in js::SavedStacks. r=shu
Bug 1035045 - Handle packets by the protocol buffer. r=kamidphish

Use google protocol buffer to handle our package in LayerScope.
Note: LayerScopePacket.pb.h and LayerScopePacket.pb.cc were
generated by version 2.4.1.
Bug 1035396 - Make Linux USS reporting 2x faster. r=nbp, r=njn
Bug 1037363 - Unbreak WebRTC on BSDs after bug 1036049. r=jesup