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

chrome/browser/chromeos/login/enrollment/enrollment_screen_browsertest.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 "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/run_loop.h"
 #include "chrome/browser/chromeos/login/enrollment/enrollment_screen.h"
 #include "chrome/browser/chromeos/login/screens/mock_base_screen_delegate.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
@@ skipping 71 matching lines @@
   static_cast<BaseScreen*>(enrollment_screen)->base_screen_delegate_ =
       WizardController::default_controller();
 }
 
 class ProvisionedEnrollmentScreenTest : public EnrollmentScreenTest {
  public:
   ProvisionedEnrollmentScreenTest() {}
 
  private:
   // Overridden from InProcessBrowserTest:
-  virtual void SetUpCommandLine(base::CommandLine* command_line) override {
+  void SetUpCommandLine(base::CommandLine* command_line) override {
     base::FilePath test_data_dir;
     ASSERT_TRUE(chromeos::test_utils::GetTestDataPath(
                     "app_mode", "kiosk_manifest", &test_data_dir));
     command_line->AppendSwitchPath(
         switches::kAppOemManifestFile,
         test_data_dir.AppendASCII("kiosk_manifest.json"));
   }
 
   DISALLOW_COPY_AND_ASSIGN(ProvisionedEnrollmentScreenTest);
 };
@@ skipping 18 matching lines @@
       .WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
   enrollment_screen->OnCancel();
   content::RunThisRunLoop(&run_loop);
   Mock::VerifyAndClearExpectations(&mock_base_screen_delegate);
 
   static_cast<BaseScreen*>(enrollment_screen)->base_screen_delegate_ =
       WizardController::default_controller();
 }
 
 }  // namespace chromeos