Update Event classes to use OVERRIDE / FINAL when needed

Source/core/events/TextEvent.h

Index: Source/core/events/TextEvent.h
diff --git a/Source/core/events/TextEvent.h b/Source/core/events/TextEvent.h
index 6c2f256cf1410d14bc686bb43b9fe4d5e82af8ad..b2d6478a877ee39a97c96d99274d04710e674319 100644
--- a/Source/core/events/TextEvent.h
+++ b/Source/core/events/TextEvent.h
@@ -35,7 +35,7 @@ namespace WebCore {
 
     class DocumentFragment;
 
-    class TextEvent : public UIEvent {
+    class TextEvent FINAL : public UIEvent {
     public:
 
         static PassRefPtr<TextEvent> create();
@@ -50,7 +50,7 @@ namespace WebCore {
 
         String data() const { return m_data; }
 
-        virtual const AtomicString& interfaceName() const;
+        virtual const AtomicString& interfaceName() const OVERRIDE;
 
         bool isLineBreak() const { return m_inputType == TextEventInputLineBreak; }
         bool isComposition() const { return m_inputType == TextEventInputComposition; }