bindings: Adds virtual ScriptWrappable::wrap method.

Source/modules/filesystem/Metadata.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 20 matching lines @@
 #ifndef Metadata_h
 #define Metadata_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/FileMetadata.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class Metadata : public GarbageCollectedFinalized<Metadata>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
 public:
     static Metadata* create(const FileMetadata& platformMetadata)
     {
         return new Metadata(platformMetadata);
     }
 
     static Metadata* create(Metadata* metadata)
     {
         return new Metadata(metadata->m_platformMetadata);
     }
 
     // Needs to return epoch time in milliseconds for Date while FileMetadata's modificationTime is in seconds.
     double modificationTime() const { return m_platformMetadata.modificationTime * 1000.0; }
     unsigned long long size() const { return static_cast<unsigned long long>(m_platformMetadata.length); }
 
     void trace(Visitor*) { }
 
 private:
     explicit Metadata(const FileMetadata& platformMetadata)
         : m_platformMetadata(platformMetadata)
     {
         ScriptWrappable::init(this);
     }
 
     FileMetadata m_platformMetadata;
 };
 
-} // namespace
+} // namespace blink
 
 #endif // Metadata_h