Create a DefaultPrefStore to hold registered application-default preference v...

chrome/browser/prefs/pref_notifier.cc

 // Copyright (c) 2010 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.
 
 #include "chrome/browser/prefs/pref_notifier.h"
 
 #include "base/stl_util-inl.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/policy/configuration_policy_pref_store.h"
 #include "chrome/browser/prefs/pref_service.h"
@@ skipping 20 matching lines @@
       LOG(WARNING) << "pref observer found at shutdown " << it->first;
     }
   }
 
   STLDeleteContainerPairSecondPointers(pref_observers_.begin(),
                                        pref_observers_.end());
   pref_observers_.clear();
 }
 
 void PrefNotifier::OnPreferenceSet(const char* pref_name,
-                                   PrefNotifier::PrefStoreType new_store,
-                                   const Value* old_value) {
-  if (pref_value_store_->PrefHasChanged(pref_name, new_store, old_value))
+                                   PrefNotifier::PrefStoreType new_store) {
+  if (pref_value_store_->PrefHasChanged(pref_name, new_store))
     FireObservers(pref_name);
 }
 
-void PrefNotifier::OnUserPreferenceSet(const char* pref_name,
-                                       const Value* old_value) {
-  OnPreferenceSet(pref_name, PrefNotifier::USER_STORE, old_value);
+void PrefNotifier::OnUserPreferenceSet(const char* pref_name) {
+  OnPreferenceSet(pref_name, PrefNotifier::USER_STORE);
 }
 
 void PrefNotifier::FireObservers(const char* path) {
   DCHECK(CalledOnValidThread());
 
   // Convert path to a std::string because the Details constructor requires a
   // class.
   std::string path_str(path);
   PrefObserverMap::iterator observer_iterator = pref_observers_.find(path_str);
   if (observer_iterator == pref_observers_.end())
@@ skipping 72 matching lines @@
       ChromeThread::PostTask(
           ChromeThread::UI, FROM_HERE,
           NewRunnableMethod(
               pref_value_store_,
               &PrefValueStore::RefreshPolicyPrefs,
               ConfigurationPolicyPrefStore::CreateManagedPolicyPrefStore(),
               ConfigurationPolicyPrefStore::CreateRecommendedPolicyPrefStore(),
               callback));
   }
 }