GitLab

Add a UKM to track navigations when a user clicks
on something in Kaleidoscope.

BUG=1110373

Doc:  https://docs.google.com/document/d/1RRF7XpUss7vr-qD4ckmOPyiQrfjQUTLip2YTDkXjchY/edit

Change-Id: Ib0afa41e997aec8cee9bcdc010030cc086a6fcff
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2441289
Commit-Queue: Becca Hughes <beccahughes@chromium.org>
Reviewed-by: Brian White <bcwhite@chromium.org>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818143}