Merge "Reuse and reparent one-level root task to another display" into rvc-dev...
Merge "Reuse and reparent one-level root task to another display" into rvc-dev am: 46f0be1f am: 28bfa974 am: 82093413
Change-Id: If2420d84f5f1ef7da9f624626998fb09948acb29