Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/events

Source/core/events/HashChangeEvent.h

Index: Source/core/events/HashChangeEvent.h
diff --git a/Source/core/events/HashChangeEvent.h b/Source/core/events/HashChangeEvent.h
index 242fc3417daf5f7ad7a7e5ff52b6d4d23190cf88..464837a7c79e86ccb8c7168923ffa2b3045bfd2b 100644
--- a/Source/core/events/HashChangeEvent.h
+++ b/Source/core/events/HashChangeEvent.h
@@ -32,7 +32,7 @@ struct HashChangeEventInit : public EventInit {
     String newURL;
 };
 
-class HashChangeEvent FINAL : public Event {
+class HashChangeEvent final : public Event {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<HashChangeEvent> create()
@@ -64,9 +64,9 @@ public:
     const String& oldURL() const { return m_oldURL; }
     const String& newURL() const { return m_newURL; }
 
-    virtual const AtomicString& interfaceName() const OVERRIDE { return EventNames::HashChangeEvent; }
+    virtual const AtomicString& interfaceName() const override { return EventNames::HashChangeEvent; }
 
-    virtual void trace(Visitor* visitor) OVERRIDE { Event::trace(visitor); }
+    virtual void trace(Visitor* visitor) override { Event::trace(visitor); }
 
 private:
     HashChangeEvent() { }