TBR=yangguo@chromium.org

Bug: v8:6741
Change-Id: Iefab0451514d95d718ebb0489cc681a82b5ef789
Reviewed-on: https://chromium-review.googlesource.com/778863Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49562}