Merge "Add elevation to dream home controls button." into udc-dev am:...

Merge "Add elevation to dream home controls button." into udc-dev am: 22490466 am: 7cab53bf am: fe4e1770 am: 94927234

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23003559



Change-Id: I5bf5f1bd68f71097a020611410cd132aafd9a832
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>