Merge "DO NOT MERGE Check caller for sending media key to global priority session" into lmp-dev am: 64b7b1522e  -s ours am: 5abd69e59a am: f7f452fd28 am: 8a168a7c5d  -s ours am: 298c104ae5 am: d9e8bfb8cf am: 8cb7a9fdb0
am: a13096f4c5  -s ours

Change-Id: I5b9a7bb6faae813c9b4f6beeb8f96dfb5ad3cc3b