Merge "Statsd notif logs: important conversations." into rvc-dev am:...

Merge "Statsd notif logs: important conversations." into rvc-dev am: 263c7f9b am: 9f2ca756 am: 8097bc3a am: 4a74f45b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11931359

Change-Id: I00690007bfb51c6d91212a4cb1fc5e144d323d7c