Merge "Rework how notification posts are logged to statsd" into udc-dev am: 485c0dd3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22289567



Change-Id: I17f69f24602e8a8f56a161772405aea472e26215
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>