Bug 1038855, part 1 - Use an nsRefPtr for AsyncPanZoomController::mSharedFrameMetricsBuffer. r=bjacob
Bug 1038855, part 2 - Use an nsRefPtr for CompositorChild::SharedFrameMetricsData::mBuffer. r=bjacob
Bug 1038855, part 3 - Use an nsRefPtr for CrossProcessMutex::mSharedBuffer. r=bjacob