Merge "[flexiglass] Scalable scene transition definitions in Flexiglass." into udc-qpr-dev am: c1adfb3028

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24405059

Change-Id: I44faca58dd94dd030b5ce9dc5abf0678c822b3e4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>