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

Source/core/fileapi/FileReader.h

 /*
  * Copyright (C) 2010 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 32 matching lines @@
 #include "wtf/ThreadSpecific.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class Blob;
 class ExceptionState;
 class ExecutionContext;
 
 class FileReader FINAL : public RefCountedWillBeRefCountedGarbageCollected<FileReader>, public ScriptWrappable, public ActiveDOMObject, public FileReaderLoaderClient, public EventTargetWithInlineData {
-    DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<FileReader>);
+    REFCOUNTED_EVENT_TARGET(FileReader);
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(FileReader);
 public:
     static PassRefPtrWillBeRawPtr<FileReader> create(ExecutionContext*);
 
     virtual ~FileReader();
 
     enum ReadyState {
         EMPTY = 0,
         LOADING = 1,
         DONE = 2
     };
@@ skipping 26 matching lines @@
     virtual void didFinishLoading() OVERRIDE;
     virtual void didFail(FileError::ErrorCode) OVERRIDE;
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadstart);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(load);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(abort);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(loadend);
 
-    void trace(Visitor*);
+    virtual void trace(Visitor*) OVERRIDE;
 
 private:
     class ThrottlingController;
 
     FileReader(ExecutionContext*);
 
     void terminate();
     void readInternal(Blob*, FileReaderLoader::ReadType, ExceptionState&);
     void fireErrorEvent(int httpStatusCode);
     void fireEvent(const AtomicString& type);
@@ skipping 19 matching lines @@
     String m_encoding;
 
     OwnPtr<FileReaderLoader> m_loader;
     RefPtrWillBeMember<FileError> m_error;
     double m_lastProgressNotificationTimeMS;
 };
 
 } // namespace WebCore
 
 #endif // FileReader_h