Add SpeechSynthesisUtterance attribute on SpeechSynthesisEvent

Source/modules/speech/SpeechSynthesisEvent.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 15 matching lines @@
 #include "config.h"
 #include "modules/speech/SpeechSynthesisEvent.h"
 
 namespace blink {
 
 PassRefPtrWillBeRawPtr<SpeechSynthesisEvent> SpeechSynthesisEvent::create()
 {
     return adoptRefWillBeNoop(new SpeechSynthesisEvent);
 }
 
-PassRefPtrWillBeRawPtr<SpeechSynthesisEvent> SpeechSynthesisEvent::create(const AtomicString& type, unsigned charIndex, float elapsedTime, const String& name)
+PassRefPtrWillBeRawPtr<SpeechSynthesisEvent> SpeechSynthesisEvent::create(const AtomicString& type, SpeechSynthesisUtterance* utterance, unsigned charIndex, float elapsedTime, const String& name)
 {
-    return adoptRefWillBeNoop(new SpeechSynthesisEvent(type, charIndex, elapsedTime, name));
+    return adoptRefWillBeNoop(new SpeechSynthesisEvent(type, utterance, charIndex, elapsedTime, name));
 }
 
 SpeechSynthesisEvent::SpeechSynthesisEvent()
 {
 }
 
-SpeechSynthesisEvent::SpeechSynthesisEvent(const AtomicString& type, unsigned charIndex, float elapsedTime, const String& name)
+SpeechSynthesisEvent::SpeechSynthesisEvent(const AtomicString& type, SpeechSynthesisUtterance* utterance, unsigned charIndex, float elapsedTime, const String& name)
     : Event(type, false, false)
+    , m_utterance(utterance)
     , m_charIndex(charIndex)
     , m_elapsedTime(elapsedTime)
     , m_name(name)
 {
 }
 
+DEFINE_TRACE(SpeechSynthesisEvent)
+{
+    visitor->trace(m_utterance);
+    Event::trace(visitor);
+}
+
 } // namespace blink