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

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



Change-Id: I5087d5e17b3fa458c0d93543e38f9861a4cd9029
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>