Update {virtual,override,final} to follow C++11 style in chrome/browser/chromeos/drive.

chrome/browser/chromeos/drive/file_task_executor.cc

 // 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.
 
 #include "chrome/browser/chromeos/drive/file_task_executor.h"
 
 #include <string>
 #include <vector>
 
 #include "chrome/browser/chromeos/drive/drive.pb.h"
@@ skipping 14 matching lines @@
 
 namespace drive {
 
 namespace {
 
 class FileTaskExecutorDelegateImpl : public FileTaskExecutorDelegate {
  public:
   explicit FileTaskExecutorDelegateImpl(Profile* profile) : profile_(profile) {
   }
 
-  virtual FileSystemInterface* GetFileSystem() override {
+  FileSystemInterface* GetFileSystem() override {
     return util::GetFileSystemByProfile(profile_);
   }
 
-  virtual DriveServiceInterface* GetDriveService() override {
+  DriveServiceInterface* GetDriveService() override {
     return util::GetDriveServiceByProfile(profile_);
   }
 
-  virtual void OpenBrowserWindow(const GURL& open_link) override {
+  void OpenBrowserWindow(const GURL& open_link) override {
     chrome::ScopedTabbedBrowserDisplayer displayer(
          profile_, chrome::HOST_DESKTOP_TYPE_ASH);
     chrome::AddSelectedTabWithURL(displayer.browser(), open_link,
                                   ui::PAGE_TRANSITION_LINK);
     // Since the ScopedTabbedBrowserDisplayer does not guarantee that the
     // browser will be shown on the active desktop, we ensure the visibility.
     multi_user_util::MoveWindowToCurrentDesktop(
         displayer.browser()->window()->GetNativeWindow());
   }
 
@@ skipping 101 matching lines @@
 void FileTaskExecutor::Done(bool success) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   if (!done_.is_null())
     done_.Run(success
                   ? extensions::api::file_manager_private::TASK_RESULT_OPENED
                   : extensions::api::file_manager_private::TASK_RESULT_FAILED);
   delete this;
 }
 
 }  // namespace drive