Show icons for custom menuitems in contextmenu.

components/renderer_context_menu/views/toolkit_delegate_views.h

 // Copyright 2014 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 COMPONENTS_RENDERER_CONTEXT_MENU_RENDER_TOOLKIT_DELEGATE_VIEWS_H_
 #define COMPONENTS_RENDERER_CONTEXT_MENU_RENDER_TOOLKIT_DELEGATE_VIEWS_H_
 
 #include "components/renderer_context_menu/render_view_context_menu_base.h"
 #include "ui/base/ui_base_types.h"
 
@@ skipping 22 matching lines @@
                  ui::MenuSourceType type);
 
  private:
   // ToolkitDelegate:
   void Init(ui::SimpleMenuModel* menu_model) override;
   void Cancel() override;
   void UpdateMenuItem(int command_id,
                       bool enabled,
                       bool hidden,
                       const base::string16& title) override;
+  void SetIcon(int command_id, const gfx::ImageSkia& icon) override;
 
   scoped_ptr<views::MenuModelAdapter> menu_adapter_;
   scoped_ptr<views::MenuRunner> menu_runner_;
 
   // Weak. Owned by menu_runner_;
   views::MenuItemView* menu_view_;
 
   DISALLOW_COPY_AND_ASSIGN(ToolkitDelegateViews);
 };
 
 #endif  // COMPONENTS_RENDERER_CONTEXT_MENU_RENDER_TOOLKIT_DELEGATE_VIEWS_H_