Print preview: Disable the right context menu items in print preview.

chrome/browser/tab_contents/render_view_context_menu.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 CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/observer_list.h"
 #include "base/string16.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/extensions/extension_menu_manager.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_observer.h"
 #include "content/public/common/page_transition_types.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "webkit/glue/context_menu.h"
 #include "webkit/glue/window_open_disposition.h"
 
 class ExtensionMenuItem;
+class PrintPreviewContextMenuObserver;
 class Profile;
 class RenderViewHost;
 class TabContents;
 class SpellingMenuObserver;
 class SpellCheckerSubMenuObserver;
 
 namespace gfx {
 class Point;
 }
 
@@ skipping 225 matching lines @@
   ui::SimpleMenuModel protocol_handler_submenu_model_;
   ScopedVector<ui::SimpleMenuModel> extension_menu_models_;
   scoped_refptr<ProtocolHandlerRegistry> protocol_handler_registry_;
 
   // An observer that handles spelling-menu items.
   scoped_ptr<SpellingMenuObserver> spelling_menu_observer_;
 
   // An observer that handles a 'spell-checker options' submenu.
   scoped_ptr<SpellCheckerSubMenuObserver> spellchecker_submenu_observer_;
 
+  // An observer that disables menu items when print preview is active.
+  scoped_ptr<PrintPreviewContextMenuObserver> print_preview_menu_observer_;
+
   // Our observers.
   mutable ObserverList<RenderViewContextMenuObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewContextMenu);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_H_