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

Source/bindings/core/v8/V8WorkerGlobalScopeEventListener.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 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 28 matching lines @@
 
 class Event;
 
 class V8WorkerGlobalScopeEventListener final : public V8EventListener {
 public:
     static PassRefPtr<V8WorkerGlobalScopeEventListener> create(v8::Local<v8::Object> listener, bool isInline, ScriptState* scriptState)
     {
         return adoptRef(new V8WorkerGlobalScopeEventListener(listener, isInline, scriptState));
     }
 
-    virtual void handleEvent(ScriptState*, Event*) override;
+    void handleEvent(ScriptState*, Event*) override;
 
 protected:
     V8WorkerGlobalScopeEventListener(v8::Local<v8::Object> listener, bool isInline, ScriptState*);
 
 private:
-    virtual v8::Local<v8::Value> callListenerFunction(ScriptState*, v8::Local<v8::Value>, Event*) override;
+    v8::Local<v8::Value> callListenerFunction(ScriptState*, v8::Local<v8::Value>, Event*) override;
     v8::Local<v8::Object> getReceiverObject(ScriptState*, Event*);
 };
 
 } // namespace blink
 
 #endif // V8WorkerGlobalScopeEventListener_h