GitLab

Add field trial testing conf since we plan
to launch this through finch.

BUG=1024351

Change-Id: I7912c1733f453fd43222f7fd2908d4120aaa3476
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2140196
Commit-Queue: Becca Hughes <beccahughes@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#762131}