Replace string16 with base::string16.

chrome/browser/chromeos/file_manager/desktop_notifications.h

 // Copyright 2013 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_FILE_MANAGER_DESKTOP_NOTIFICATIONS_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_DESKTOP_NOTIFICATIONS_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 57 matching lines @@
                                base::TimeDelta delay);
 
   size_t GetNotificationCountForTest() const {
     return notification_map_.size();
   }
 
   bool HasNotificationForTest(const std::string& id) const {
     return notification_map_.find(id) != notification_map_.end();
   }
 
-  string16 GetNotificationMessageForTest(const std::string& id) const;
+  base::string16 GetNotificationMessageForTest(const std::string& id) const;
 
  private:
   class NotificationMessage;
   struct MountRequestsInfo;
 
   typedef std::map<std::string, MountRequestsInfo> MountRequestsMap;
   typedef std::map<std::string, NotificationMessage*> NotificationMap;
 
   // Virtual for mock in unittest.
   virtual void ShowNotificationWithMessage(NotificationType type,
                                            const std::string& path,
-                                           const string16& message);
+                                           const base::string16& message);
   void ShowNotificationById(NotificationType type,
                             const std::string& notification_id,
-                            const string16& message);
+                            const base::string16& message);
   void HideNotificationById(const std::string& notification_id);
   void RemoveNotificationById(const std::string& notification_id);
 
   NotificationMap notification_map_;
   std::set<std::string> hidden_notifications_;
   MountRequestsMap mount_requests_;
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNotifications);
 };
 
 }  // namespace file_manager
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_DESKTOP_NOTIFICATIONS_H_