R=ishell@chromium.org
BUG=v8:6409

Change-Id: Ic01d4f1a8b251bb5480840d4943d9ebec713b9c1
Reviewed-on: https://chromium-review.googlesource.com/626016Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47534}