GitLab

This CL adds a test for
https://chromium-review.googlesource.com/c/chromium/src/+/1367864.

It modifies an existing, but disabled test to do this, so it's possible
this test was flakey or otherwise had issues, so this is being landed
separately from the main CL so we can diagnose it separately.

Bug: 734209
Change-Id: I7bf8a14f0d126a62e8ac4c5815d4b1802e27b3e6
Reviewed-on: https://chromium-review.googlesource.com/c/1384940Reviewed-by: Nasko Oskov <nasko@chromium.org>
Commit-Queue: James MacLean <wjmaclean@chromium.org>
Cr-Commit-Position: refs/heads/master@{#618307}