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: 8724c53e am: 818ca275 am: 2e62172b

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



Change-Id: Ie66a8efa86e1941ef9379c9705e76854f4f792bb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>