Merge "Move wallpaper local color extraction to background" into tm-qpr-dev am: 2ba1d91c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21340154



Change-Id: I2ac4baee7ee79d4dc325ddef84d46b2eefb3c66f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>