Remove RefCountedGarbageCollected from EventTarget objects

Source/modules/speech/SpeechSynthesis.cpp

 /*
  * Copyright (C) 2013 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 18 matching lines @@
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ExecutionContext.h"
 #include "modules/speech/SpeechSynthesisEvent.h"
 #include "platform/speech/PlatformSpeechSynthesisVoice.h"
 #include "wtf/CurrentTime.h"
 
 namespace WebCore {
 
 SpeechSynthesis* SpeechSynthesis::create(ExecutionContext* context)
 {
-    return adoptRefCountedGarbageCollected(new SpeechSynthesis(context));
+    return new SpeechSynthesis(context);
 }
 
 SpeechSynthesis::SpeechSynthesis(ExecutionContext* context)
     : ContextLifecycleObserver(context)
     , m_platformSpeechSynthesizer(PlatformSpeechSynthesizer::create(this))
     , m_isPaused(false)
 {
     ScriptWrappable::init(this);
 }
 
@@ skipping 184 matching lines @@
 }
 
 void SpeechSynthesis::trace(Visitor* visitor)
 {
     visitor->trace(m_voiceList);
     visitor->trace(m_utteranceQueue);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace WebCore