Merge "Added shade bottom corner radius transition for predictive back" into udc-dev am: f74da6cc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23356898



Change-Id: I335c6007bba70b74845e6c8c638143c12dfb8486
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>