bindings: Adds virtual ScriptWrappable::wrap method.

Source/modules/mediastream/SourceInfo.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:
  * 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
@@ skipping 15 matching lines @@
 #ifndef SourceInfo_h
 #define SourceInfo_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "public/platform/WebSourceInfo.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class SourceInfo : public GarbageCollectedFinalized<SourceInfo>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
 public:
     static SourceInfo* create(const WebSourceInfo&);
 
     String id() const;
     String kind() const;
     String label() const;
     String facing() const;
 
     void trace(Visitor*) { }
 
 private:
     explicit SourceInfo(const WebSourceInfo&);
 
     WebSourceInfo m_webSourceInfo;
 };
 
 typedef HeapVector<Member<SourceInfo> > SourceInfoVector;
 
 } // namespace blink
 
 #endif // SourceInfo_h