Tried to move AudioSummingJuction to oilpan

Source/modules/webaudio/OfflineAudioCompletionEvent.cpp

 /*
  * 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:
  * 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 17 matching lines @@
 
 #include "modules/webaudio/OfflineAudioCompletionEvent.h"
 
 namespace WebCore {
 
 PassRefPtrWillBeRawPtr<OfflineAudioCompletionEvent> OfflineAudioCompletionEvent::create()
 {
     return adoptRefWillBeNoop(new OfflineAudioCompletionEvent);
 }
 
-PassRefPtrWillBeRawPtr<OfflineAudioCompletionEvent> OfflineAudioCompletionEvent::create(PassRefPtr<AudioBuffer> renderedBuffer)
+PassRefPtrWillBeRawPtr<OfflineAudioCompletionEvent> OfflineAudioCompletionEvent::create(PassRefPtrWillBeRawPtr<AudioBuffer> renderedBuffer)
 {
     return adoptRefWillBeNoop(new OfflineAudioCompletionEvent(renderedBuffer));
 }
 
 OfflineAudioCompletionEvent::OfflineAudioCompletionEvent()
 {
     ScriptWrappable::init(this);
 }
 
-OfflineAudioCompletionEvent::OfflineAudioCompletionEvent(PassRefPtr<AudioBuffer> renderedBuffer)
+OfflineAudioCompletionEvent::OfflineAudioCompletionEvent(PassRefPtrWillBeRawPtr<AudioBuffer> renderedBuffer)
     : Event(EventTypeNames::complete, true, false)
     , m_renderedBuffer(renderedBuffer)
 {
     ScriptWrappable::init(this);
 }
 
 OfflineAudioCompletionEvent::~OfflineAudioCompletionEvent()
 {
 }
 
 const AtomicString& OfflineAudioCompletionEvent::interfaceName() const
 {
     return EventNames::OfflineAudioCompletionEvent;
 }
 
 void OfflineAudioCompletionEvent::trace(Visitor* visitor)
 {
+    visitor->trace(m_renderedBuffer);
     Event::trace(visitor);
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WEB_AUDIO)