Merge "Use UiBackgroundExecutor to set doze screen brightness" into udc-dev am: c21978b1 am: f0e40ae5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22383864



Change-Id: I25c9184fcc8864cb5706145a24e60c5fb57b831b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>