Merge "Migrate unfold animation to Shell transitions [Part 3]" into tm-qpr-dev am: cd6eac33

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17822143



Change-Id: Id9da4b909b1799706180cea75897458eb7228622
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>