Merge "Move wallpaper transition leashes to the back" into udc-dev am: f11d33ba

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23269401



Change-Id: I79f5219e01b610a2d16af5211d51f41f9a5f4db6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>