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 am: 83c4acd0 am: 11822af4

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



Change-Id: I33afc25a01b2504e3624d4a6c48bdf1c67e9cf24
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>