Inherit EventTarget interface instead of duplicating its code

Source/modules/speech/SpeechRecognition.h

 /*
  * Copyright (C) 2012 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 copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 25 matching lines @@
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class ScriptExecutionContext;
 class SpeechRecognitionController;
 class SpeechRecognitionError;
 class SpeechRecognitionResult;
 class SpeechRecognitionResultList;
 
-class SpeechRecognition : public RefCounted<SpeechRecognition>, public ScriptWrappable, public ActiveDOMObject, public EventTarget {
+class SpeechRecognition : public EventTarget, public RefCounted<SpeechRecognition>, public ScriptWrappable, public ActiveDOMObject {
 public:
     static PassRefPtr<SpeechRecognition> create(ScriptExecutionContext*);
     ~SpeechRecognition();
 
     // Attributes.
     PassRefPtr<SpeechGrammarList> grammars() { return m_grammars; }
     void setGrammars(PassRefPtr<SpeechGrammarList> grammars) { m_grammars = grammars; }
     String lang() { return m_lang; }
     void setLang(const String& lang) { m_lang = lang; }
     bool continuous() { return m_continuous; }
@@ skipping 66 matching lines @@
     SpeechRecognitionController* m_controller;
     bool m_stoppedByActiveDOMObject;
     bool m_started;
     bool m_stopping;
     Vector<RefPtr<SpeechRecognitionResult> > m_finalResults;
 };
 
 } // namespace WebCore
 
 #endif // SpeechRecognition_h