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: fcf5a9c7

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

Change-Id: Iab99f9374d201a217922842094273014a2f4f6fe