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And add a few test suites that need that arg to run.

Bug: 840967
Change-Id: I9954a08cc22f7237b0e0d2093214b544b6f3d897
Reviewed-on: https://chromium-review.googlesource.com/1162863Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581031}