Use PrefChangeRegistrar everywhere

chrome/browser/tab_contents/tab_contents.h

 // 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.
 
 #ifndef CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include "build/build_config.h"
 
 #include <deque>
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/cancelable_request.h"
 #include "chrome/browser/dom_ui/dom_ui_factory.h"
 #include "chrome/browser/download/save_package.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
 #include "chrome/browser/fav_icon_helper.h"
 #include "chrome/browser/find_bar_controller.h"
 #include "chrome/browser/find_notification_details.h"
 #include "chrome/browser/jsmessage_box_client.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/browser/password_manager/password_manager_delegate.h"
 #include "chrome/browser/renderer_host/render_view_host_delegate.h"
 #include "chrome/browser/tab_contents/constrained_window.h"
 #include "chrome/browser/tab_contents/language_state.h"
 #include "chrome/browser/tab_contents/navigation_controller.h"
 #include "chrome/browser/tab_contents/navigation_entry.h"
 #include "chrome/browser/tab_contents/page_navigator.h"
 #include "chrome/browser/tab_contents/render_view_host_manager.h"
 #include "chrome/browser/tab_contents/tab_specific_content_settings.h"
 #include "chrome/common/notification_registrar.h"
@@ skipping 1013 matching lines @@
 
   // Manages creation and swapping of render views.
   RenderViewHostManager render_manager_;
 
   // Stores random bits of data for others to associate with this object.
   PropertyBag property_bag_;
 
   // Registers and unregisters us for notifications.
   NotificationRegistrar registrar_;
 
+  // Registers and unregisters for pref notifications.
+  PrefChangeRegistrar pref_change_registrar_;
+
   // Handles print preview and print job for this contents.
   scoped_ptr<printing::PrintViewManager> printing_;
 
   // SavePackage, lazily created.
   scoped_refptr<SavePackage> save_package_;
 
   // AutocompleteHistoryManager, lazily created.
   scoped_ptr<AutocompleteHistoryManager> autocomplete_history_manager_;
 
   // AutoFillManager, lazily created.
@@ skipping 202 matching lines @@
 
   // See description in RenderViewHostDelegate::SetDisplayingPDFContent.
   bool displaying_pdf_content_;
 
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_