Merge "Defer remove splash screen window until start transaction apply." into...

Merge "Defer remove splash screen window until start transaction apply." into udc-dev am: d9a252dc am: 15326b1a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22608521



Change-Id: I5799a6f280110705ced15d4a8819f4a59ceb0a9d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>