R=ulan@chromium.org
TBR=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/120783004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18465 ce2b1a6d-e550-0410-aec6-3dcde31c8c00