Merge "Improve transition between AOD and lockscreen when media is playing for split shade" into udc-dev am: e132b30b3e am: 714853b93d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23761845

Change-Id: Ibeac8f40d29e147363f58175ae9d5b4ccadac5a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>