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

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



Change-Id: Ic050c7e943fdedf1856864d5234ebc2b33342930
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>