Merge "Add the connection state change handle for the volume control profile"...

Merge "Add the connection state change handle for the volume control profile" into udc-dev am: 2a37e27c am: 186f55e7 am: 9be97f06 am: 67895079

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23276876



Change-Id: I0b069a81c38b295ce43687f58548ce2db90edcb8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>