R=hpayer@chromium.org
BUG=v8:6792,chromium:774108

Change-Id: I202993ddf5bb11d238ed173197657c6546dd4a37
Reviewed-on: https://chromium-review.googlesource.com/789865Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49675}