Show icons for custom menuitems in contextmenu.

content/public/common/menu_item.h

 // Copyright 2013 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_PUBLIC_COMMON_MENU_ITEM_H_
 #define CONTENT_PUBLIC_COMMON_MENU_ITEM_H_
 
 #include <vector>
 
 #include "base/strings/string16.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/web/WebMenuItemInfo.h"
+#include "url/gurl.h"
 
 namespace content {
 
 // Container for information about entries in an HTML select popup menu and
 // custom entries of the context menu.
 struct CONTENT_EXPORT MenuItem {
   enum Type {
     OPTION           = blink::WebMenuItemInfo::Option,
     CHECKABLE_OPTION = blink::WebMenuItemInfo::CheckableOption,
     GROUP            = blink::WebMenuItemInfo::Group,
     SEPARATOR        = blink::WebMenuItemInfo::Separator,
     SUBMENU  // This is currently only used by Pepper, not by WebKit.
   };
 
   MenuItem();
   MenuItem(const MenuItem& item);
   ~MenuItem();
 
   base::string16 label;
-  base::string16 icon;
+  GURL icon;
   base::string16 tool_tip;
   Type type;
   unsigned action;
   bool rtl;
   bool has_directional_override;
   bool enabled;
   bool checked;
   std::vector<MenuItem> submenu;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_MENU_ITEM_H_