After this CL, we will enable cpplint checks for this directory on
presubmit: https://chromium-review.googlesource.com/647807

R=mstarzinger@chromium.org

Change-Id: Ie85e876a7245cc5c8d5bf9348c8841040a8edbe9
Reviewed-on: https://chromium-review.googlesource.com/647552Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47791}