GitLab

Add overall interaction metrics (with actions) and individual
metrics for each of the checks.

Bug: 1078782
Change-Id: Ic778e9ef54e9f358e28eab5b4b7ac30a7ad5d99d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2442531Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Commit-Queue: Sean Harrison <harrisonsean@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812912}