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

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



Change-Id: I76ab7730a0366f8e971cdf800218d4b169087edc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>