Merge "Add getActiveDevices api" into stage-aosp-master am: 7371482df4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15853560

Change-Id: Iec72b027795c2140a5135c44261cc82895d02f00
tree: 6e81884da404b52657f224926e1aac2ddce21635
  1. framework/
  2. service/