Until recently, it sometimes did.

BUG=

Change-Id: I8785c1865909e6f46693b71c9146d4fa17114fce
Reviewed-on: https://chromium-review.googlesource.com/444188
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43291}