Bug 1054208 - Assert priority only on non-Nuwa process. r=gsvelto
Bug 968109 - Add new constructor to support recording from any web audio node. r=roc,smaug
Bug 968109 - Add test for recording audio node output. r=roc
Bug 1059052 - centralize state transitions of MediaDecoderStateMachine. r=cpearce
Bug 1059023 - Do not compose layer hidden under the opaque layer. r=mattwoodrow