Fix x64 compilation error in r4673. Review URL: http://codereview.chromium.org/2129010
Fix x64 compilation error in r4673.
Review URL: http://codereview.chromium.org/2129010

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@4674 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh