Bug 994912 - Add support for event-based notifications to media streams. r=roc,bz
Bug 994912 - Add support for promises and event-based notifications to camera. r=mikeh r=bz
Bug 997564 - Implement Engineering Mode Web API. sr=sicking r=fabrice
Bug 997564 - Use async way to fire an error. r=fabrice
Bug 997564 - add special handling to internal-system-engineering-mode webactivity. r=fabrice,pauljt