Merge "Determine if the activity is the topmost one" into rvc-dev am:...
Merge "Determine if the activity is the topmost one" into rvc-dev am: b4d5aef6 am: c7343394 am: f2cfb002 am: f0893dd7 am: c0a39ee6
Change-Id: Idb7835505328044e81aa2bdd2071b5ac9e07f256