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

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

Index: chrome/browser/ui/webui/options2/cookies_view_handler2.h
diff --git a/chrome/browser/ui/webui/options2/cookies_view_handler2.h b/chrome/browser/ui/webui/options2/cookies_view_handler2.h
index 19e41105477890c8b1e6ee8e6b5562b300621430..fe36cc5e098b1701f66ffd7773c395ba06bbba29 100644
--- a/chrome/browser/ui/webui/options2/cookies_view_handler2.h
+++ b/chrome/browser/ui/webui/options2/cookies_view_handler2.h
@@ -1,4 +1,4 @@
-// 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.
 
@@ -11,6 +11,8 @@
 #include "chrome/browser/cookies_tree_model.h"
 #include "chrome/browser/ui/webui/options2/options_ui2.h"
 
+class CookiesTreeModelUtil;
+
 namespace options2 {
 
 class CookiesViewHandler : public OptionsPageUIHandler,
@@ -57,7 +59,7 @@ class CookiesViewHandler : public OptionsPageUIHandler,
 
   // 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_;
@@ -65,6 +67,8 @@ class CookiesViewHandler : public OptionsPageUIHandler,
   // Flag to indicate whether there is a batch update in progress.
   bool batch_update_;
 
+  scoped_ptr<CookiesTreeModelUtil> model_util_;
+
   DISALLOW_COPY_AND_ASSIGN(CookiesViewHandler);
 };