Merge "Use activity-exit animation for translucent-only close" into udc-dev am: d31c9412

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23439461



Change-Id: Ib45e6844c9f7a9825cb5583628affbbf4258e3dc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>