GitLab

Adds logging for first run and sign-in flows.

Bug: 971989
Change-Id: Ieec769b0db013959396be3ee533eb84f206cb9cb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2087403
Commit-Queue: Nohemi Fernandez <fernandex@chromium.org>
Reviewed-by: Jérôme Lebel <jlebel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#749673}