This reverts commit r21700 due to Windows compile warnings.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/318763007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00