Standardize usage of virtual/override/final specifiers.

ui/message_center/views/notification_view_unittest.cc

Index: ui/message_center/views/notification_view_unittest.cc
diff --git a/ui/message_center/views/notification_view_unittest.cc b/ui/message_center/views/notification_view_unittest.cc
index 193761878d27207e4f0368d19710fbbbcc2f15f8..3977f5fbb67ce3acbf2221983d2213ab43d4e0d4 100644
--- a/ui/message_center/views/notification_view_unittest.cc
+++ b/ui/message_center/views/notification_view_unittest.cc
@@ -26,10 +26,10 @@ class NotificationViewTest : public views::ViewsTestBase,
                              public MessageCenterController {
  public:
   NotificationViewTest();
-  virtual ~NotificationViewTest();
+  ~NotificationViewTest() override;
 
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   views::Widget* widget() { return notification_view_->GetWidget(); }
   NotificationView* notification_view() { return notification_view_.get(); }
@@ -37,15 +37,15 @@ class NotificationViewTest : public views::ViewsTestBase,
   RichNotificationData* data() { return data_.get(); }
 
   // Overridden from MessageCenterController:
-  virtual void ClickOnNotification(const std::string& notification_id) override;
-  virtual void RemoveNotification(const std::string& notification_id,
-                                  bool by_user) override;
-  virtual scoped_ptr<ui::MenuModel> CreateMenuModel(
+  void ClickOnNotification(const std::string& notification_id) override;
+  void RemoveNotification(const std::string& notification_id,
+                          bool by_user) override;
+  scoped_ptr<ui::MenuModel> CreateMenuModel(
       const NotifierId& notifier_id,
       const base::string16& display_source) override;
-  virtual bool HasClickedListener(const std::string& notification_id) override;
-  virtual void ClickOnNotificationButton(const std::string& notification_id,
-                                         int button_index) override;
+  bool HasClickedListener(const std::string& notification_id) override;
+  void ClickOnNotificationButton(const std::string& notification_id,
+                                 int button_index) override;
 
  protected:
   const gfx::Image CreateTestImage(int width, int height) {