GitLab

Uses the ScopedTestEnvironment to switch to using mock time.
This makes the test deterministic

Bug: 960729
Change-Id: If5a9c55bd44127f9bada0eba324618577af3119e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1660338
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Max Morin <maxmorin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#669672}