Merge "Add empty implementation of ShadeController" into udc-qpr-dev am: 2bc18136

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23918549



Change-Id: I3f7b99851b9fa29112f9897a9766f65f56e1f2e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>