Merge "Revert: Revert: Migrate unfold animation to Shell transitions [Part 3]"...

Merge "Revert: Revert: Migrate unfold animation to Shell transitions [Part 3]" into tm-qpr-dev am: 8c8cf03d am: 94697161

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18751998



Change-Id: Ib3f5237d27c3d0010d856f69654f2057267abab7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>