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: c02423f6 am: e5e14d3c

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



Change-Id: I69de799c3b497b3cb1b925658873e0710269ac41
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>