Windows: Add an "Open in Adobe Reader" menu item for PDF files in the download shelf.

chrome/browser/download/download_shelf_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_DOWNLOAD_DOWNLOAD_SHELF_CONTEXT_MENU_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SHELF_CONTEXT_MENU_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 34 matching lines @@
   DownloadShelfContextMenu(content::DownloadItem* download_item,
                            content::PageNavigator* navigator);
 
   // Returns the correct menu model depending on the state of the download item.
   // Returns NULL if the download was destroyed.
   ui::SimpleMenuModel* GetMenuModel();
 
   // ui::SimpleMenuModel::Delegate:
   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
+  virtual bool IsCommandIdVisible(int command_id) const OVERRIDE;
   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
   virtual bool GetAcceleratorForCommandId(
       int command_id,
       ui::Accelerator* accelerator) OVERRIDE;
   virtual bool IsItemForCommandIdDynamic(int command_id) const OVERRIDE;
   virtual base::string16 GetLabelForCommandId(int command_id) const OVERRIDE;
 
  private:
   // Detaches self from |download_item_|. Called when the DownloadItem is
   // destroyed or when this object is being destroyed.
   void DetachFromDownloadItem();
 
   // content::DownloadItem::Observer
   virtual void OnDownloadDestroyed(content::DownloadItem* download) OVERRIDE;
 
   ui::SimpleMenuModel* GetInProgressMenuModel();
   ui::SimpleMenuModel* GetFinishedMenuModel();
   ui::SimpleMenuModel* GetInterruptedMenuModel();
   ui::SimpleMenuModel* GetMaybeMaliciousMenuModel();
   ui::SimpleMenuModel* GetMaliciousMenuModel();
 
+  int GetAlwaysOpenStringId() const;
+
+#if defined(OS_WIN)
+  bool IsDownloadPdf() const;
+  bool CanOpenPdfInReader() const;
+#endif
+
   // We show slightly different menus if the download is in progress vs. if the
   // download has finished.
   scoped_ptr<ui::SimpleMenuModel> in_progress_download_menu_model_;
   scoped_ptr<ui::SimpleMenuModel> finished_download_menu_model_;
   scoped_ptr<ui::SimpleMenuModel> interrupted_download_menu_model_;
   scoped_ptr<ui::SimpleMenuModel> maybe_malicious_download_menu_model_;
   scoped_ptr<ui::SimpleMenuModel> malicious_download_menu_model_;
 
   // Information source.
   content::DownloadItem* download_item_;
 
   // Used to open tabs.
   content::PageNavigator* navigator_;
 
+#if defined(OS_WIN)
+  bool is_pdf_reader_up_to_date_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(DownloadShelfContextMenu);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SHELF_CONTEXT_MENU_H_