Fix printing PDFs through right click on Mac and Linux. Looks like they both...

ui/base/models/simple_menu_model.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 UI_BASE_MODELS_SIMPLE_MENU_MODEL_H_
 #define UI_BASE_MODELS_SIMPLE_MENU_MODEL_H_
 #pragma once
 
 #include <vector>
 
 #include "base/string16.h"
+#include "base/task.h"
 #include "ui/base/models/menu_model.h"
 
 namespace ui {
 
 class ButtonMenuItemModel;
 
 // A simple MenuModel implementation with an imperative API for adding menu
 // items. This makes it easy to construct fixed menus. Menus populated by
 // dynamic data sources may be better off implementing MenuModel directly.
 // The breadth of MenuModel is not exposed through this API.
@@ skipping 109 matching lines @@
   Delegate* delegate() { return delegate_; }
 
  private:
   struct Item;
 
   // Functions for inserting items into |items_|.
   void AppendItem(const Item& item);
   void InsertItemAtIndex(const Item& item, int index);
   void ValidateItem(const Item& item);
 
+  // Notify the delegate that the menu is closed.
+  void OnMenuClosed();
+
   std::vector<Item> items_;
 
   Delegate* delegate_;
 
+  ScopedRunnableMethodFactory<SimpleMenuModel> method_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(SimpleMenuModel);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_MODELS_SIMPLE_MENU_MODEL_H_