Merge "Moves the embedded task to back when it become invisible" into udc-qpr-dev am: c78ab05e0f am: c02ad5a55f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24740518

Change-Id: I7eaba9b1b756bbb0868179283ac86492c7a6cc15
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>