Removing PrefObserver usage, batch 4.

chrome/browser/extensions/component_loader.cc

 // 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.
 
 #include "chrome/browser/extensions/component_loader.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/path_service.h"
@@ skipping 59 matching lines @@
 ComponentLoader::ComponentLoader(ExtensionServiceInterface* extension_service,
                                  PrefService* prefs,
                                  PrefService* local_state)
     : prefs_(prefs),
       local_state_(local_state),
       extension_service_(extension_service) {
   pref_change_registrar_.Init(prefs);
 
   // This pref is set by policy. We have to watch it for change because on
   // ChromeOS, policy isn't loaded until after the browser process is started.
-  pref_change_registrar_.Add(prefs::kEnterpriseWebStoreURL, this);
+  pref_change_registrar_.Add(
+      prefs::kEnterpriseWebStoreURL,
+      base::Bind(&ComponentLoader::AddOrReloadEnterpriseWebStore,
+                 base::Unretained(this)));
 }
 
 ComponentLoader::~ComponentLoader() {
   ClearAllRegistered();
 }
 
 const Extension* ComponentLoader::GetScriptBubble() const {
   if (script_bubble_id_.empty())
     return NULL;
 
@@ skipping 301 matching lines @@
   // the browser process has started.
   AddOrReloadEnterpriseWebStore();
 
 #if defined(USE_ASH)
   AddChromeApp();
 #endif
 
   AddScriptBubble();
 }
 
-void ComponentLoader::OnPreferenceChanged(PrefServiceBase* service,
-                                          const std::string& pref_name) {
-  DCHECK_EQ(std::string(prefs::kEnterpriseWebStoreURL), pref_name);
-  AddOrReloadEnterpriseWebStore();
-}
-
 // static
 void ComponentLoader::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterStringPref(prefs::kEnterpriseWebStoreURL,
                             std::string() /* default_value */,
                             PrefService::UNSYNCABLE_PREF);
   prefs->RegisterStringPref(prefs::kEnterpriseWebStoreName,
                             std::string() /* default_value */,
                             PrefService::UNSYNCABLE_PREF);
 }
 
 }  // namespace extensions