Merge "Send update config change when letterbox is moved" into udc-dev am:...

Merge "Send update config change when letterbox is moved" into udc-dev am: 40ae027d am: ec5e05af am: e69af0c9 am: 225ad71f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22893140



Change-Id: I95396477c23a734902d057256439f4a993657732
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>