BUG=v8:6565
R=machenbach@chromium.org

Change-Id: I2bd9b65fd7f991899e365354e262e62e78d1e852
Reviewed-on: https://chromium-review.googlesource.com/568679Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47361}