Merge "Create window decors for leaf tasks & skip non-leafs" into tm-qpr-dev...

Merge "Create window decors for leaf tasks & skip non-leafs" into tm-qpr-dev am: 5c3b3d0a am: 8fd663fb

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



Change-Id: Ib4ef611aec65a483ecbf6a3698629777a61e27f5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>