Merge "Notify the keepalive is stopped after the slot has been released" am:...

Merge "Notify the keepalive is stopped after the slot has been released" am: 6d7c1854 am: b5e1fecc am: 09ab7ad3 am: 4295a632 am: fcc06d41

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1112851

Change-Id: I86b9c01f99eaa9497acbd4e3e481c7330cf05667