Added default implementations of GetAcceleratorForCommandId.

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 <memory>
 
 #include "base/compiler_specific.h"
@@ skipping 25 matching lines @@
 
   // 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:
   bool IsCommandIdEnabled(int command_id) const override;
   bool IsCommandIdChecked(int command_id) const override;
   bool IsCommandIdVisible(int command_id) const override;
   void ExecuteCommand(int command_id, int event_flags) override;
-  bool GetAcceleratorForCommandId(int command_id,
-                                  ui::Accelerator* accelerator) const override;
   bool IsItemForCommandIdDynamic(int command_id) const override;
   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
   void OnDownloadDestroyed(content::DownloadItem* download) override;
@@ skipping 15 matching lines @@
   std::unique_ptr<ui::SimpleMenuModel> malicious_download_menu_model_;
 
   // Information source.
   content::DownloadItem* download_item_;
   std::unique_ptr<DownloadCommands> download_commands_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadShelfContextMenu);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_SHELF_CONTEXT_MENU_H_