Merge "Transitions - Add occlusion state" into tm-qpr-dev am: 49889126 am: 766d1ecd

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



Change-Id: I6899e2b605695514b1f4014394eb80cbf4f7abe9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>