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

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



Change-Id: I483d84c3b07bd65b10aa0c5ae2130cfd27c1e9aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>