Merge "DO NOT MERGE Check caller for sending media key to global priority...

Merge "DO NOT MERGE Check caller for sending media key to global priority session" into lmp-dev am: 64b7b152  -s ours am: 5abd69e5 am: f7f452fd am: 8a168a7c  -s ours am: 298c104a am: d9e8bfb8 am: 8cb7a9fd am: a13096f4  -s ours
am: 36aa253b

Change-Id: I93fc78c253458ec31b7ea34e34c3124bf7f557b7