Replace string16 with base::string16.

chrome/browser/chromeos/login/user_manager_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 67 matching lines @@
   virtual User* GetLoggedInUser() OVERRIDE;
   virtual const User* GetActiveUser() const OVERRIDE;
   virtual User* GetActiveUser() OVERRIDE;
   virtual const User* GetPrimaryUser() const OVERRIDE;
   virtual User* GetUserByProfile(Profile* profile) const OVERRIDE;
   virtual Profile* GetProfileByUser(const User* user) const OVERRIDE;
   virtual void SaveUserOAuthStatus(
       const std::string& user_id,
       User::OAuthTokenStatus oauth_token_status) OVERRIDE;
   virtual void SaveUserDisplayName(const std::string& user_id,
-                                   const string16& display_name) OVERRIDE;
-  virtual string16 GetUserDisplayName(
+                                   const base::string16& display_name) OVERRIDE;
+  virtual base::string16 GetUserDisplayName(
       const std::string& user_id) const OVERRIDE;
   virtual void SaveUserDisplayEmail(const std::string& user_id,
                                     const std::string& display_email) OVERRIDE;
   virtual std::string GetUserDisplayEmail(
       const std::string& user_id) const OVERRIDE;
   virtual void UpdateUserAccountData(
       const std::string& user_id,
       const UserAccountData& account_data) OVERRIDE;
   virtual bool IsCurrentUserOwner() const OVERRIDE;
   virtual bool IsCurrentUserNew() const OVERRIDE;
@@ skipping 342 matching lines @@
   scoped_ptr<MultiProfileUserController> multi_profile_user_controller_;
   scoped_ptr<MultiProfileFirstRunNotification>
       multi_profile_first_run_notification_;
 
   DISALLOW_COPY_AND_ASSIGN(UserManagerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_