Merge "Don't bring child to top if fullscreen task open" into udc-dev am: bb4a8549 am: a51dcce3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23510399



Change-Id: I8dda67a2247cce357a984269c98c81d4da3b854c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>