R=jarin@chromium.org

Bug: v8:178
Change-Id: I4b77e96072d5b8b70df21477bba8cdbf573d184c
Reviewed-on: https://chromium-review.googlesource.com/908289Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51174}