Merge "Create windowless starting surface on opening target." into udc-qpr-dev...

Merge "Create windowless starting surface on opening target." into udc-qpr-dev am: 72fe73d7 am: 9d4443d8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23905243



Change-Id: Id31bb01c4926acbf84a7d3272c45ff26e2836caa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>