GitLab

The group was finally renamed in the experiment configuration so
renaming it here again.

Bug: 687364
Change-Id: I314b2993f27342054bbb423c80e16d2e7a8f886f
Reviewed-on: https://chromium-review.googlesource.com/1105390Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Carlos Knippschild <carlosk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568472}