Merge "Split shade expansion: adjust alpha interpolation to match motion...

Merge "Split shade expansion: adjust alpha interpolation to match motion specs" into tm-qpr-dev am: 186e7cbd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21463824



Change-Id: Id381a1c73cc70df5cb86211133e12dba152f4ca0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>