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

Merge "Rework how notification posts are logged to statsd" into udc-dev am: 485c0dd3 am: 53c34f8e

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



Change-Id: I88fb74d14763dfde818b75e811b28bd5f2a6409d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>