Reduce repetitive EventTarget subclassing

Source/modules/mediasource/SourceBuffer.h

 /*
  * 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 36 matching lines @@
 
 namespace WebCore {
 
 class ExceptionState;
 class FileReaderLoader;
 class GenericEventQueue;
 class MediaSource;
 class Stream;
 class TimeRanges;
 
-class SourceBuffer : public RefCounted<SourceBuffer>, public ActiveDOMObject, public EventTarget, public ScriptWrappable, public FileReaderLoaderClient {
+class SourceBuffer : public RefCounted<SourceBuffer>, public ActiveDOMObject, public EventTargetWithInlineData, public ScriptWrappable, public FileReaderLoaderClient {
 public:
     static PassRefPtr<SourceBuffer> create(PassOwnPtr<SourceBufferPrivate>, MediaSource*, GenericEventQueue*);
 
     virtual ~SourceBuffer();
 
     // SourceBuffer.idl methods
     bool updating() const { return m_updating; }
     PassRefPtr<TimeRanges> buffered(ExceptionState&) const;
     double timestampOffset() const;
     void setTimestampOffset(double, ExceptionState&);
@@ skipping 17 matching lines @@
 
     // EventTarget interface
     virtual ScriptExecutionContext* scriptExecutionContext() const OVERRIDE;
     virtual const AtomicString& interfaceName() const OVERRIDE;
 
     using RefCounted<SourceBuffer>::ref;
     using RefCounted<SourceBuffer>::deref;
 
 protected:
     // EventTarget interface
-    virtual EventTargetData* eventTargetData() OVERRIDE;
-    virtual EventTargetData* ensureEventTargetData() OVERRIDE;
     virtual void refEventTarget() OVERRIDE { ref(); }
     virtual void derefEventTarget() OVERRIDE { deref(); }
 
 private:
     SourceBuffer(PassOwnPtr<SourceBufferPrivate>, MediaSource*, GenericEventQueue*);
 
     bool isRemoved() const;
     void scheduleEvent(const AtomicString& eventName);
 
     void appendBufferInternal(const unsigned char*, unsigned, ExceptionState&);
     void appendBufferTimerFired(Timer<SourceBuffer>*);
 
     void removeTimerFired(Timer<SourceBuffer>*);
 
     void appendStreamInternal(PassRefPtr<Stream>, ExceptionState&);
     void appendStreamTimerFired(Timer<SourceBuffer>*);
     void appendStreamDone(bool success);
     void clearAppendStreamState();
 
     // FileReaderLoaderClient interface
     virtual void didStartLoading() OVERRIDE;
     virtual void didReceiveDataForClient(const char* data, unsigned dataLength) OVERRIDE;
     virtual void didFinishLoading() OVERRIDE;
     virtual void didFail(FileError::ErrorCode) OVERRIDE;
 
     OwnPtr<SourceBufferPrivate> m_private;
     MediaSource* m_source;
     GenericEventQueue* m_asyncEventQueue;
-    EventTargetData m_eventTargetData;
 
     bool m_updating;
     double m_timestampOffset;
     double m_appendWindowStart;
     double m_appendWindowEnd;
 
     Vector<unsigned char> m_pendingAppendData;
     Timer<SourceBuffer> m_appendBufferTimer;
 
     double m_pendingRemoveStart;
     double m_pendingRemoveEnd;
     Timer<SourceBuffer> m_removeTimer;
 
     bool m_streamMaxSizeValid;
     unsigned long long m_streamMaxSize;
     Timer<SourceBuffer> m_appendStreamTimer;
     RefPtr<Stream> m_stream;
     OwnPtr<FileReaderLoader> m_loader;
 };
 
 } // namespace WebCore
 
 #endif