This copies a necessary suppression from Chromium's blacklist.

NOTRY=true
TBR=ishell@chromium.org

Bug: chromium:726584
Change-Id: I7dfa13ad4a929b28bccb782be0a0faa9d29be1eb
Reviewed-on: https://chromium-review.googlesource.com/576001Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46767}