Merge "Statsd notif logs: important conversations." into rvc-dev am: b79e69c33c am: fc0f7c6449 am: c4396084a6

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

Change-Id: I7ae7cf891fe6fa7a5be0b3a7fbb3bf7d1dd43c9a
tree: b1813bc390e8609d20f32b09d96a15c737185834
  1. stats/