clean-up: Use an id instead of memory pointer string in webui.

chrome/browser/ui/webui/options2/cookies_view_handler2.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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_UI_WEBUI_OPTIONS2_COOKIES_VIEW_HANDLER2_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_COOKIES_VIEW_HANDLER2_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/cookies_tree_model.h"
 #include "chrome/browser/ui/webui/options2/options_ui2.h"
 
+class CookiesTreeModelUtil;
+
 namespace options2 {
 
 class CookiesViewHandler : public OptionsPageUIHandler,
                            public CookiesTreeModel::Observer {
  public:
   CookiesViewHandler();
   virtual ~CookiesViewHandler();
 
   // OptionsPageUIHandler implementation.
   virtual void GetLocalizedValues(
@@ skipping 26 matching lines @@
 
   // Remove selected sites data.
   void Remove(const base::ListValue* args);
 
   // Get the tree node using the tree path info in |args| and call
   // SendChildren to pass back children nodes data to WebUI.
   void LoadChildren(const base::ListValue* args);
 
   // Get children nodes data and pass it to 'CookiesView.loadChildren' to
   // update the WebUI.
-  void SendChildren(CookieTreeNode* parent);
+  void SendChildren(const CookieTreeNode* parent);
 
   // The Cookies Tree model
   scoped_ptr<CookiesTreeModel> cookies_tree_model_;
 
   // Flag to indicate whether there is a batch update in progress.
   bool batch_update_;
 
+  scoped_ptr<CookiesTreeModelUtil> model_util_;
+
   DISALLOW_COPY_AND_ASSIGN(CookiesViewHandler);
 };
 
 }  // namespace options2
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_COOKIES_VIEW_HANDLER2_H_