Merge "Don‘t consider adjacent launch root if the existing task is't on top"...

Merge "Don‘t consider adjacent launch root if the existing task is't on top" into udc-dev am: 6f0bcaf4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23129198



Change-Id: Ie47173a47091a4e04aeb83cfc625be9ea8f6742e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>