Oilpan: Allocate all EventTarget derived types on the manged heap.

Source/core/timing/Performance.h

 /*
  * 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 39 matching lines @@
 class Document;
 class ExceptionState;
 class ResourceRequest;
 class ResourceResponse;
 class ResourceTimingInfo;
 class UserTiming;
 
 typedef WillBeHeapVector<RefPtrWillBeMember<PerformanceEntry> > PerformanceEntryVector;
 
 class Performance FINAL : public RefCountedWillBeRefCountedGarbageCollected<Performance>, public ScriptWrappable, public DOMWindowProperty, public EventTargetWithInlineData {
-    DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<Performance>);
+    REFCOUNTED_EVENT_TARGET(Performance);
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Performance);
 public:
     static PassRefPtrWillBeRawPtr<Performance> create(LocalFrame* frame)
     {
         return adoptRefWillBeRefCountedGarbageCollected(new Performance(frame));
     }
     virtual ~Performance();
 
     virtual const AtomicString& interfaceName() const OVERRIDE;
     virtual ExecutionContext* executionContext() const OVERRIDE;
 
@@ skipping 12 matching lines @@
     DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitresourcetimingbufferfull);
 
     void addResourceTiming(const ResourceTimingInfo&, Document*);
 
     void mark(const String& markName, ExceptionState&);
     void clearMarks(const String& markName);
 
     void measure(const String& measureName, const String& startMark, const String& endMark, ExceptionState&);
     void clearMeasures(const String& measureName);
 
-    void trace(Visitor*);
+    virtual void trace(Visitor*) OVERRIDE;
 
 private:
     explicit Performance(LocalFrame*);
 
     bool isResourceTimingBufferFull();
     void addResourceTimingBuffer(PassRefPtrWillBeRawPtr<PerformanceEntry>);
 
     mutable RefPtrWillBeMember<PerformanceNavigation> m_navigation;
     mutable RefPtrWillBeMember<PerformanceTiming> m_timing;
 
     PerformanceEntryVector m_resourceTimingBuffer;
     unsigned m_resourceTimingBufferSize;
     double m_referenceTime;
 
     RefPtrWillBeMember<UserTiming> m_userTiming;
 };
 
 }
 
 #endif // Performance_h