Unbreak build.

Test/update/commit race condition... >:-(

TBR=ulan@chromium.org

Review URL: https://codereview.chromium.org/123383003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@18450 ce2b1a6d-e550-0410-aec6-3dcde31c8c00