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This matches the behavior for other platforms, and helps reduce differences in testing.

Bug: 870359
Change-Id: I6c0bd06497d1577a034ee3f52bdf7d144061d28d
Reviewed-on: https://chromium-review.googlesource.com/1159603
Commit-Queue: Eric Roman <eroman@chromium.org>
Reviewed-by: Matt Mueller <mattm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580382}