Bug 926289 - Part 1: Add recording type and request URL in recording-device-events. r=khuey, a=koi+
Bug 926289 - Part 2: Carry recording type and request URL in recording-device-events in gUM API. r=jesup, a=koi+
Bug 926289 - Part 3: Carry recording type and request URL in recording-device-events in Camera API. r=mikeh, a=koi+
Bug 926289 - Part 4: Separate recording status for each process. r=vingtetun, r=jesup, a=koi+