Fix virtual/override/final usage in Source/modules/.

Source/modules/websockets/CloseEvent.h

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 48 matching lines @@
     static PassRefPtrWillBeRawPtr<CloseEvent> create(const AtomicString& type, const CloseEventInit& initializer)
     {
         return adoptRefWillBeNoop(new CloseEvent(type, initializer));
     }
 
     bool wasClean() const { return m_wasClean; }
     unsigned short code() const { return m_code; }
     String reason() const { return m_reason; }
 
     // Event function.
-    virtual const AtomicString& interfaceName() const override { return EventNames::CloseEvent; }
+    const AtomicString& interfaceName() const override { return EventNames::CloseEvent; }
 
     DEFINE_INLINE_VIRTUAL_TRACE() { Event::trace(visitor); }
 
 private:
     CloseEvent()
         : Event(EventTypeNames::close, false, false)
         , m_wasClean(false)
         , m_code(0) { }
 
     CloseEvent(bool wasClean, int code, const String& reason)
         : Event(EventTypeNames::close, false, false)
         , m_wasClean(wasClean)
         , m_code(code)
         , m_reason(reason) { }
 
     CloseEvent(const AtomicString& type, const CloseEventInit& initializer);
 
     bool m_wasClean;
     unsigned short m_code;
     String m_reason;
 };
 
 } // namespace blink
 
 #endif // CloseEvent_h