Tried to move AudioSummingJuction to oilpan

Source/modules/webaudio/OfflineAudioCompletionEvent.cpp

Index: Source/modules/webaudio/OfflineAudioCompletionEvent.cpp
diff --git a/Source/modules/webaudio/OfflineAudioCompletionEvent.cpp b/Source/modules/webaudio/OfflineAudioCompletionEvent.cpp
index ee862a0840fdbcbd2ad1db847d166b9bdc046875..a2a72d1e27b01ef5d9a2d60653f66b3962bcd8ae 100644
--- a/Source/modules/webaudio/OfflineAudioCompletionEvent.cpp
+++ b/Source/modules/webaudio/OfflineAudioCompletionEvent.cpp
@@ -35,7 +35,7 @@ PassRefPtrWillBeRawPtr<OfflineAudioCompletionEvent> OfflineAudioCompletionEvent:
     return adoptRefWillBeNoop(new OfflineAudioCompletionEvent);
 }
 
-PassRefPtrWillBeRawPtr<OfflineAudioCompletionEvent> OfflineAudioCompletionEvent::create(PassRefPtr<AudioBuffer> renderedBuffer)
+PassRefPtrWillBeRawPtr<OfflineAudioCompletionEvent> OfflineAudioCompletionEvent::create(PassRefPtrWillBeRawPtr<AudioBuffer> renderedBuffer)
 {
     return adoptRefWillBeNoop(new OfflineAudioCompletionEvent(renderedBuffer));
 }
@@ -45,7 +45,7 @@ OfflineAudioCompletionEvent::OfflineAudioCompletionEvent()
     ScriptWrappable::init(this);
 }
 
-OfflineAudioCompletionEvent::OfflineAudioCompletionEvent(PassRefPtr<AudioBuffer> renderedBuffer)
+OfflineAudioCompletionEvent::OfflineAudioCompletionEvent(PassRefPtrWillBeRawPtr<AudioBuffer> renderedBuffer)
     : Event(EventTypeNames::complete, true, false)
     , m_renderedBuffer(renderedBuffer)
 {
@@ -63,6 +63,7 @@ const AtomicString& OfflineAudioCompletionEvent::interfaceName() const
 
 void OfflineAudioCompletionEvent::trace(Visitor* visitor)
 {
+    visitor->trace(m_renderedBuffer);
     Event::trace(visitor);
 }