Merge "Starting Unit Tests for Metrics" into udc-dev am: b42ac693

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23331943



Change-Id: Ic1028e9c6d5948af6433718646c31143d0b83951
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>