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

chrome/browser/drive/drive_uploader.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_DRIVE_DRIVE_UPLOADER_H_
 #define CHROME_BROWSER_DRIVE_DRIVE_UPLOADER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 97 matching lines @@
       const base::FilePath& local_file_path,
       const std::string& content_type,
       const UploadCompletionCallback& callback,
       const google_apis::ProgressCallback& progress_callback) = 0;
 };
 
 class DriveUploader : public DriveUploaderInterface {
  public:
   DriveUploader(DriveServiceInterface* drive_service,
                 const scoped_refptr<base::TaskRunner>& blocking_task_runner);
-  virtual ~DriveUploader();
+  ~DriveUploader() override;
 
   // DriveUploaderInterface overrides.
-  virtual google_apis::CancelCallback UploadNewFile(
+  google_apis::CancelCallback UploadNewFile(
       const std::string& parent_resource_id,
       const base::FilePath& local_file_path,
       const std::string& title,
       const std::string& content_type,
       const UploadNewFileOptions& options,
       const UploadCompletionCallback& callback,
       const google_apis::ProgressCallback& progress_callback) override;
-  virtual google_apis::CancelCallback UploadExistingFile(
+  google_apis::CancelCallback UploadExistingFile(
       const std::string& resource_id,
       const base::FilePath& local_file_path,
       const std::string& content_type,
       const UploadExistingFileOptions& options,
       const UploadCompletionCallback& callback,
       const google_apis::ProgressCallback& progress_callback) override;
-  virtual google_apis::CancelCallback ResumeUploadFile(
+  google_apis::CancelCallback ResumeUploadFile(
       const GURL& upload_location,
       const base::FilePath& local_file_path,
       const std::string& content_type,
       const UploadCompletionCallback& callback,
       const google_apis::ProgressCallback& progress_callback) override;
 
  private:
   struct UploadFileInfo;
   typedef base::Callback<void(scoped_ptr<UploadFileInfo> upload_file_info)>
       StartInitiateUploadCallback;
@@ skipping 57 matching lines @@
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<DriveUploader> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(DriveUploader);
 };
 
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_DRIVE_DRIVE_UPLOADER_H_