Replace OVERRIDE and FINAL with override and final in content/public/[a-s]*

content/public/test/test_notification_tracker.h

Index: content/public/test/test_notification_tracker.h
diff --git a/content/public/test/test_notification_tracker.h b/content/public/test/test_notification_tracker.h
index f34fdae614da5b8acd16eea4985cab6c5b41bda9..69d59fae17880747dd51f3085eddb966d61313c5 100644
--- a/content/public/test/test_notification_tracker.h
+++ b/content/public/test/test_notification_tracker.h
@@ -71,7 +71,7 @@ class TestNotificationTracker : public NotificationObserver {
  protected:
   virtual void Observe(int type,
                        const NotificationSource& source,
-                       const NotificationDetails& details) OVERRIDE;
+                       const NotificationDetails& details) override;
  private:
   NotificationRegistrar registrar_;