Oilpan: Remove GC_INFO_{DEFINE,DECLARE} macros

Source/modules/webmidi/MIDIAccess.cpp

 /*
  * Copyright (C) 2013 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
@@ skipping 24 matching lines @@
 #include "core/dom/Document.h"
 #include "core/loader/DocumentLoadTiming.h"
 #include "core/loader/DocumentLoader.h"
 #include "modules/webmidi/MIDIAccessPromise.h"
 #include "modules/webmidi/MIDIConnectionEvent.h"
 #include "modules/webmidi/MIDIController.h"
 #include "modules/webmidi/MIDIPort.h"
 
 namespace WebCore {
 
-DEFINE_GC_INFO(MIDIAccess);
-
 PassRefPtrWillBeRawPtr<MIDIAccess> MIDIAccess::create(ExecutionContext* context, MIDIAccessPromise* promise)
 {
     RefPtrWillBeRawPtr<MIDIAccess> midiAccess(adoptRefCountedWillBeRefCountedGarbageCollected(new MIDIAccess(context, promise)));
     midiAccess->suspendIfNeeded();
     midiAccess->startRequest();
     return midiAccess.release();
 }
 
 MIDIAccess::~MIDIAccess()
 {
@@ skipping 125 matching lines @@
 }
 
 void MIDIAccess::trace(Visitor* visitor)
 {
     visitor->trace(m_inputs);
     visitor->trace(m_outputs);
     visitor->trace(m_promise);
 }
 
 } // namespace WebCore