Standardize usage of virtual/override/final specifiers.

chrome/browser/notifications/message_center_notifications_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/memory/scoped_ptr.h"
 #include "base/prefs/testing_pref_service.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/test_timeouts.h"
 #include "base/values.h"
@@ skipping 22 matching lines @@
 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.h"
 #endif
 
 namespace message_center {
 
 class MessageCenterNotificationManagerTest : public BrowserWithTestWindowTest {
  public:
   MessageCenterNotificationManagerTest() {}
 
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     BrowserWithTestWindowTest::SetUp();
 #if !defined(OS_CHROMEOS)
     // BrowserWithTestWindowTest owns an AshTestHelper on OS_CHROMEOS, which
     // in turn initializes the message center.  On other platforms, we need to
     // initialize it here.
     MessageCenter::Initialize();
 #endif
 
 
     // Clear the preference and initialize.
@@ skipping 15 matching lines @@
                                                   run_loop_->QuitClosure());
     notification_manager()->SetMessageCenterTrayDelegateForTest(delegate_);
 #if defined(OS_WIN)
     // First run features are only implemented on Windows, where the
     // notification center is hard to find.
     notification_manager()->SetFirstRunTimeoutForTest(
         TestTimeouts::tiny_timeout());
 #endif
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     run_loop_.reset();
     first_run_pref_.reset();
     profile_manager_.reset();
 
 #if !defined(OS_CHROMEOS)
     // Shutdown the message center if we initialized it manually.
     MessageCenter::Shutdown();
 #endif
 
     BrowserWithTestWindowTest::TearDown();
@@ skipping 114 matching lines @@
   TestingProfile profile;
   notification_manager()->Add(GetANotification("test"), &profile);
   message_center()->SetVisibility(message_center::VISIBILITY_MESSAGE_CENTER);
   run_loop()->RunUntilIdle();
   EXPECT_FALSE(notification_manager()->FirstRunTimerIsActive());
   EXPECT_FALSE(DidFirstRunPref());
 }
 
 #endif
 }  // namespace message_center