Merge "Remove precision loss on brightness slider." into rvc-dev am: b204ade3 am: 3eff280e am: 1a850eaa

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11595231

Change-Id: I5b7b496caf4429d5ec1855b9079ea5c9219ba24a