Merge "Merge "Scale just progress of brightness slider" into sc-dev am:...

Merge "Merge "Scale just progress of brightness slider" into sc-dev am: afc4b264 am: a2738ee7" into sc-v2-dev-plus-aosp am: 15227251

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14648732

Change-Id: I0b3810376bc74b81df0e827af3df9ce1b8855269