Turn back spoken feedback setting into a system-wide (non-per-user) preference

chrome/browser/chromeos/policy/recommendation_restorer.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_POLICY_RECOMMENDATION_RESTORER_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_RECOMMENDATION_RESTORER_H_
 
 #include <string>
 
 #include "ash/wm/user_activity_observer.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/prefs/pref_change_registrar.h"
+#include "base/prefs/pref_service.h"
 #include "base/timer/timer.h"
 #include "components/browser_context_keyed_service/browser_context_keyed_service.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Profile;
 
 namespace policy {
 
 // Observes a set of prefs in the login profile. If any of the prefs has a
@@ skipping 18 matching lines @@
                        const content::NotificationDetails& details) OVERRIDE;
 
   // ash::UserActivityObserver:
   virtual void OnUserActivity(const ui::Event* event) OVERRIDE;
 
   // If a recommended value and a user setting exist for |pref_name|, clears the
   // user setting so that the recommended value can take effect. If
   // |allow_delay| is |true| and the login screen is being shown, a timer is
   // started that will clear the setting when the user becomes idle for one
   // minute. Otherwise, the setting is cleared immediately.
-  void Restore(bool allow_delay, const std::string& pref_name);
+  //
+  // RestoreGlobalPref for the global pref, RestoreUserPref for user pref.
+  void RestoreGlobalPref(bool allow_delay, const std::string& pref_name);
+  void RestoreUserPref(bool allow_delay, const std::string& pref_name);
 
  private:
   friend class RecommendationRestorerTest;
 
+  void RestorePrefInternal(bool allow_delay,
+                           PrefService* pref,
+                           const std::string& pref_name);
   void RestoreAll();
 
   void StartTimer();
   void StopTimer();
 
   PrefChangeRegistrar pref_change_registrar_;
+  PrefChangeRegistrar global_pref_change_registrar_;
   content::NotificationRegistrar notification_registrar_;
 
   bool logged_in_;
 
   base::OneShotTimer<RecommendationRestorer> restore_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(RecommendationRestorer);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_RECOMMENDATION_RESTORER_H_