Merge "AdbService sends callback on adb debugging enabled / disabled." am: 6efa908b95 am: 870e9c266b am: c978bf0e0a am: 2e5ca8a73f

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1775965

Change-Id: I52e83d9fedd19d0391c51d9e56c434d85bd6268e