fix mac build after 16548
fix mac build after 16548

TBR=bmeurer@chromium.org,yurys@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23452023

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@16550 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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