Merge "Prevent alpha transitions from clipping out-of-bounds clocks" into udc-dev am: 5623c50b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23149088



Change-Id: If0a47059c767839b8731268450998d39ff68010f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>