Merge "Prepare to log post_duration_millis to statsd" into udc-dev am: d6c040c7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23114956



Change-Id: I3c2a3ec1a296dad4402b44fc476d9ac609c28d99
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>