Merge "Clear the system bars color when removing the splash screen window."...

Merge "Clear the system bars color when removing the splash screen window." into tm-dev am: 2aac6810

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17493268



Change-Id: I2de9a89990809738a366a509541452bc1f4279ac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>