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

Source/core/events/ClipboardEvent.h

Index: Source/core/events/ClipboardEvent.h
diff --git a/Source/core/events/ClipboardEvent.h b/Source/core/events/ClipboardEvent.h
index 074de15ef92f32e7d4871da09a30900d8c03c368..28cfa3757dd2d53bd89fb8b21d4f3d8393af6e87 100644
--- a/Source/core/events/ClipboardEvent.h
+++ b/Source/core/events/ClipboardEvent.h
@@ -30,7 +30,7 @@ namespace blink {
 
 class DataTransfer;
 
-class ClipboardEvent FINAL : public Event {
+class ClipboardEvent final : public Event {
 public:
     virtual ~ClipboardEvent();
 
@@ -41,14 +41,14 @@ public:
 
     DataTransfer* clipboardData() const { return m_clipboardData.get(); }
 
-    virtual void trace(Visitor*) OVERRIDE;
+    virtual void trace(Visitor*) override;
 
 private:
     ClipboardEvent();
     ClipboardEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<DataTransfer> clipboardData);
 
-    virtual const AtomicString& interfaceName() const OVERRIDE;
-    virtual bool isClipboardEvent() const OVERRIDE;
+    virtual const AtomicString& interfaceName() const override;
+    virtual bool isClipboardEvent() const override;
 
     RefPtrWillBeMember<DataTransfer> m_clipboardData;
 };