Merge "Add debug log for set/remove active device." am: cbb4cd1f8c am:...

Merge "Add debug log for set/remove active device." am: cbb4cd1f8c am: 61663ada am: 85ac3ae6 am: b29ad757 am: 4e57a36b

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1351257

Change-Id: I66e6f219b8e4ab98a62eea2cd64de027f0810f0f