Merge "Only apply transient visibility for root task" into udc-dev am:...

Merge "Only apply transient visibility for root task" into udc-dev am: deaed7c7 am: 1b7654b6 am: b609014c am: 66c59f65

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23557640



Change-Id: Id3eaddc6d62c73dcbc0a3f81c2a5900f88cf293f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>