This reverts commit r7807.  TBR=kmillikin@chromium.org.

BUG=
TEST=

Review URL: http://codereview.chromium.org/6928061

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7810 ce2b1a6d-e550-0410-aec6-3dcde31c8c00