Merge "Define ConnectivityDiagnosticsCallback IBinder impl." am: 54600d7b00 am: f94fb42850 am: 1d7b1dddd4

Change-Id: I5a77211d1f940166c02c4aac31c9add9466c76b1
tree: d52383040ebbcd4ace7fc69a066a43c0e76d9953
  1. core/
  2. services/
  3. tests/