These directories probably just did not exist when the cpplint paths
were defined.

R=machenbach@chromium.org
CC=mstarzinger@chromium.org

Change-Id: Ia6b641b3c106d86ceafb0c70b44ca241b4c80642
Reviewed-on: https://chromium-review.googlesource.com/647807Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47786}