Merge "Do not show animation background with wallpaper transition" into tm-dev...

Merge "Do not show animation background with wallpaper transition" into tm-dev am: dc19fc3b am: ca209036

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17665554



Change-Id: I9fb1f5c71d52f895438f4fc4482cbdf4745aa705
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>