Standardize usage of virtual/override/final in chrome/browser/download/

chrome/browser/download/download_file_picker.h

 // Copyright (c) 2012 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_FILE_PICKER_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_
 
 #include "base/callback.h"
 #include "ui/shell_dialogs/select_file_dialog.h"
 
@@ skipping 23 matching lines @@
   // as the initial path displayed to the user. |callback| will always be
   // invoked even if |item| is destroyed prior to the file picker completing.
   static void ShowFilePicker(content::DownloadItem* item,
                              const base::FilePath& suggested_path,
                              const FileSelectedCallback& callback);
 
  private:
   DownloadFilePicker(content::DownloadItem* item,
                      const base::FilePath& suggested_path,
                      const FileSelectedCallback& callback);
-  virtual ~DownloadFilePicker();
+  ~DownloadFilePicker() override;
 
   // Runs |file_selected_callback_| with |virtual_path| and then deletes this
   // object.
   void OnFileSelected(const base::FilePath& virtual_path);
 
   // SelectFileDialog::Listener implementation.
-  virtual void FileSelected(const base::FilePath& path,
-                            int index,
-                            void* params) override;
-  virtual void FileSelectionCanceled(void* params) override;
+  void FileSelected(const base::FilePath& path,
+                    int index,
+                    void* params) override;
+  void FileSelectionCanceled(void* params) override;
 
   // Initially suggested path.
   base::FilePath suggested_path_;
 
   // Callback invoked when a file selection is complete.
   FileSelectedCallback file_selected_callback_;
 
   // For managing select file dialogs.
   scoped_refptr<ui::SelectFileDialog> select_file_dialog_;
 
   // True if UMA regarding on the result of the file selection should be
   // recorded.
   bool should_record_file_picker_result_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadFilePicker);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_FILE_PICKER_H_