Merge "Searching and resuming the visible child Tasks behind invisible one"...

Merge "Searching and resuming the visible child Tasks behind invisible one" into tm-qpr-dev am: 3b378dfe

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20674699



Change-Id: I596995f82d045e4b5e4350b4a85e0fe12d89753e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>