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

chrome/browser/chromeos/login/signin/merge_session_load_page_unittest.cc

 // Copyright 2014 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/run_loop.h"
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/login/signin/merge_session_load_page.h"
 #include "chrome/browser/chromeos/login/signin/oauth2_login_manager.h"
 #include "chrome/browser/chromeos/login/signin/oauth2_login_manager_factory.h"
 #include "chrome/browser/chromeos/login/users/scoped_test_user_manager.h"
@@ skipping 30 matching lines @@
                            MergeSessionThrottle::CompletionCallback()) {
     interstitial_page_->DontCreateViewForTesting();
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestMergeSessionLoadPage);
 };
 
 class MergeSessionLoadPageTest : public ChromeRenderViewHostTestHarness {
  protected:
-  virtual void SetUp() override {
+  void SetUp() override {
     ChromeRenderViewHostTestHarness::SetUp();
 #if defined OS_CHROMEOS
   test_user_manager_.reset(new chromeos::ScopedTestUserManager());
 #endif
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
 #if defined OS_CHROMEOS
     // Clean up pending tasks that might depend on the user manager.
     base::RunLoop().RunUntilIdle();
     test_user_manager_.reset();
 #endif
     ChromeRenderViewHostTestHarness::TearDown();
   }
 
   void Navigate(const char* url, int page_id) {
     WebContentsTester::For(web_contents())->TestDidNavigate(
@@ skipping 99 matching lines @@
 
   // The URL remains to be URL2.
   EXPECT_EQ(kURL2, web_contents()->GetVisibleURL().spec());
 
   // Commit navigation and the interstitial page is gone.
   Navigate(kURL2, 2);
   EXPECT_FALSE(GetMergeSessionLoadPage());
 }
 
 }  // namespace chromeos