Merge "Fix launch adjacent behavior if split background" into udc-dev am:...

Merge "Fix launch adjacent behavior if split background" into udc-dev am: 741dd914 am: 700e57e0 am: c6d9fb41 am: 62501dce

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23367664



Change-Id: If557d8851a346424c29248c09410c010658c2412
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>