Move directory creation functions to base namespace.

chrome/browser/chromeos/login/managed/locally_managed_user_creation_controller.cc

Index: chrome/browser/chromeos/login/managed/locally_managed_user_creation_controller.cc
diff --git a/chrome/browser/chromeos/login/managed/locally_managed_user_creation_controller.cc b/chrome/browser/chromeos/login/managed/locally_managed_user_creation_controller.cc
index f8fc7aff0857814a681ed6ce21e21bc4333c5553..80006dc5b51aa0dbe50eee1e4d7acf1b227e6f07 100644
--- a/chrome/browser/chromeos/login/managed/locally_managed_user_creation_controller.cc
+++ b/chrome/browser/chromeos/login/managed/locally_managed_user_creation_controller.cc
@@ -39,7 +39,7 @@ bool StoreManagedUserFiles(const std::string& token,
                            const base::FilePath& base_path) {
   if (!base::SysInfo::IsRunningOnChromeOS()) {
     // If running on desktop, cryptohome stub does not create home directory.
-    file_util::CreateDirectory(base_path);
+    base::CreateDirectory(base_path);
   }
   base::FilePath token_file = base_path.Append(kManagedUserTokenFilename);
   int bytes = file_util::WriteFile(token_file, token.c_str(), token.length());