GitLab

Disable the test on ChromeOS due to flaky.

Tbr: petewil@chromium.org
Bug: 938755
Change-Id: I99eb58c46f53ae6cac8c2925171b7c3e838e15b8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1506119Reviewed-by: Owen Min <zmin@chromium.org>
Commit-Queue: Owen Min <zmin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#638217}