Oilpan: Remove GC_INFO_{DEFINE,DECLARE} macros

Source/core/timing/Performance.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel 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.
@@ skipping 26 matching lines @@
 #include "core/timing/ResourceTimingInfo.h"
 #include "core/timing/PerformanceResourceTiming.h"
 #include "core/timing/PerformanceUserTiming.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/CurrentTime.h"
 
 #include "core/frame/Frame.h"
 
 namespace WebCore {
 
-DEFINE_GC_INFO(Performance);
-
 static const size_t defaultResourceTimingBufferSize = 150;
 
 Performance::Performance(Frame* frame)
     : DOMWindowProperty(frame)
     , m_resourceTimingBufferSize(defaultResourceTimingBufferSize)
     , m_referenceTime(frame->document()->loader()->timing()->referenceMonotonicTime())
     , m_userTiming(nullptr)
 {
     ASSERT(m_referenceTime);
     ScriptWrappable::init(this);
@@ skipping 222 matching lines @@
 
 void Performance::trace(Visitor* visitor)
 {
     visitor->trace(m_navigation);
     visitor->trace(m_timing);
     visitor->trace(m_resourceTimingBuffer);
     visitor->trace(m_userTiming);
 }
 
 } // namespace WebCore