Revert 154457 - Switch from SignedSettings to DeviceSettingsService.

chrome/browser/chromeos/settings/cros_settings.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_SETTINGS_CROS_SETTINGS_H_
 #define CHROME_BROWSER_CHROMEOS_SETTINGS_CROS_SETTINGS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 73 matching lines @@
   // If the pref at the given |path| changes, we call the observer's Observe
   // method with NOTIFICATION_SYSTEM_SETTING_CHANGED.
   void AddSettingsObserver(const char* path,
                            content::NotificationObserver* obs);
   void RemoveSettingsObserver(const char* path,
                               content::NotificationObserver* obs);
 
   // Returns the provider that handles settings with the |path| or prefix.
   CrosSettingsProvider* GetProvider(const std::string& path) const;
 
+  // Forces all providers to reload their caches from the respective backing
+  // stores if they have any.
+  void ReloadProviders();
+
  private:
   friend struct base::DefaultLazyInstanceTraits<CrosSettings>;
-  friend class CrosSettingsTest;
-
-  // Public for testing.
-  CrosSettings();
-  ~CrosSettings();
-
-  // Fires system setting change notification.
-  void FireObservers(const std::string& path);
 
   // List of ChromeOS system settings providers.
   std::vector<CrosSettingsProvider*> providers_;
 
   // A map from settings names to a list of observers. Observers get fired in
   // the order they are added.
   typedef ObserverList<content::NotificationObserver, true>
       NotificationObserverList;
   typedef base::hash_map<std::string, NotificationObserverList*>
       SettingsObserverMap;
   SettingsObserverMap settings_observers_;
 
+  CrosSettings();
+  ~CrosSettings();
+
+  // Fires system setting change notification.
+  void FireObservers(const std::string& path);
+
   DISALLOW_COPY_AND_ASSIGN(CrosSettings);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SETTINGS_CROS_SETTINGS_H_