Merge "Create window decors for leaf tasks & skip non-leafs" into tm-qpr-dev am: 5c3b3d0a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20583356



Change-Id: I9111354a6df7edb58e1a3cba0e05b46103149213
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>