Merge "Unregister user listener when observers are inactive" into rvc-dev am:...
Merge "Unregister user listener when observers are inactive" into rvc-dev am: 38b57e5d am: 46f03e21 am: 8d2be6cc am: 898ec7d7
Change-Id: I0c59a7d5bc9faf291a32dd0b7ef83a30670d2467