Merge "Add overlayfinishing state." into tm-qpr-dev am: 7c24fe78 am: b4079321

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21336521



Change-Id: I964a2662a82145906ddc2f968986d1ac09c40046
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>