Merge "DO NOT MERGE Check caller for sending media key to global priority session am: c282c4f106 am: 868d586c98 am: ff1c1993b7 am: 35e95d82d7  -s ours am: 2ccdbce954 am: aff8ee6351" into nyc-mr1-dev-plus-aosp
am: b380c545d2  -s ours

Change-Id: I7c8ea406eba7b6d2e975fb2af28fde286ba2da21