Merge "Transitions - Add occlusion state" into tm-qpr-dev am: 49889126c4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20787426

Change-Id: I96a27ea8a60157fd558529714cdd28ffcc50f90d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>