Merge "Start dim animations on pending vs sync transaction" into rvc-dev am:...

Merge "Start dim animations on pending vs sync transaction" into rvc-dev am: bb414bfe am: 40704774 am: 3712df59

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11923901

Change-Id: I043ff382993caac3b62102728d351c987cb4fe8a