Merge "Attaching broadcast receiver on attach/detach instead of everytime...

Merge "Attaching broadcast receiver on attach/detach instead of everytime visibility changes" into sc-dev am: 27500d78 am: d7a005cf am: c2649fd1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14648155

Change-Id: I9fef1ade8078763b856035c39f3e98b4a82d5335