Merge "Do not show window decor for PIP" into udc-qpr-dev am: 60b4156d am: a1f58e85

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23700160



Change-Id: I97ba6e561f6e916994600f2e955757e7c49b5140
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>