IDL: Add any support to IDL dictionary and use it in CustomEventInit

Source/core/events/CustomEvent.h

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef CustomEvent_h
 #define CustomEvent_h
 
 #include "core/CoreExport.h"
+#include "core/events/CustomEventInit.h"
 #include "core/events/Event.h"
 
 namespace blink {
 
 class SerializedScriptValue;
 
-typedef EventInit CustomEventInit;
-
 class CORE_EXPORT CustomEvent final : public Event {
     DEFINE_WRAPPERTYPEINFO();
 public:
     virtual ~CustomEvent();
 
     static PassRefPtrWillBeRawPtr<CustomEvent> create()
     {
         return adoptRefWillBeNoop(new CustomEvent);
     }
 
     static PassRefPtrWillBeRawPtr<CustomEvent> create(const AtomicString& type, const CustomEventInit& initializer)
     {
         return adoptRefWillBeNoop(new CustomEvent(type, initializer));
     }
 
     void initCustomEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<SerializedScriptValue>);
 
     virtual const AtomicString& interfaceName() const override;
 
     SerializedScriptValue* serializedDetail() { return m_serializedDetail.get(); }
 
-    void setSerializedDetail(PassRefPtr<SerializedScriptValue> detail)
-    {
-        ASSERT(!m_serializedDetail);
-        m_serializedDetail = detail;
-    }
+    ScriptValue detail() const { return m_detail; }
+    void setDetail(ScriptValue detail) { m_detail = detail; }
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     CustomEvent();
     CustomEvent(const AtomicString& type, const CustomEventInit& initializer);
 
+    ScriptValue m_detail;
     RefPtr<SerializedScriptValue> m_serializedDetail;
 };
 
 } // namespace blink
 
 #endif // CustomEvent_h