[automerger skipped] Merge "Support animation parts fading out" am: 21819ef3...

[automerger skipped] Merge "Support animation parts fading out" am: 21819ef3 am: 648a4c2e am: 85898616 am: 660268ab -s ours

am skip reason: Change-Id I9b200ee7107ef9b3dc8d711658ed1042b83739c2 with SHA-1 6925e1bd is in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1466262

Change-Id: I43f34ce71a5a8dd822d8cf9ba204d92391d13689