Merge "Implement tuning of brightness thresholds for idle" into tm-qpr-dev am: 84e2c20b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19745676



Change-Id: I535dc8515de5569e2b4c41dabf97b556646803b4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>