Support touch icon in FaviconHelper

content/browser/tab_contents/tab_contents.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 1064 matching lines @@
 
   // TabContentsSSLHelper, lazily created.
   scoped_ptr<TabContentsSSLHelper> ssl_helper_;
 
   // Handles drag and drop event forwarding to extensions.
   BookmarkDrag* bookmark_drag_;
 
   // Handles downloading favicons.
   scoped_ptr<FaviconHelper> favicon_helper_;
 
+  // Handles downloading touchicons.
+  scoped_ptr<FaviconHelper> touch_icon_helper_;
+
   // Cached web app info data.
   WebApplicationInfo web_app_info_;
 
   // Cached web app icon.
   SkBitmap app_icon_;
 
   // RenderViewHost::ContentSettingsDelegate.
   scoped_ptr<TabSpecificContentSettings> content_settings_delegate_;
 
   // Handles desktop notification IPCs.
@@ skipping 151 matching lines @@
   ObserverList<TabContentsObserver> observers_;
 
   // Content restrictions, used to disable print/copy etc based on content's
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_