Make WebGL objects scriptwrappable so that binding integrity checks may be applied to them.

Source/core/html/canvas/WebGLVertexArrayObjectOES.h

 /*
  * Copyright (C) 2011 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
  *    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 WebGLVertexArrayObjectOES_h
 #define WebGLVertexArrayObjectOES_h
 
+#include "bindings/v8/ScriptWrappable.h"
 #include "core/html/canvas/WebGLBuffer.h"
 #include "core/html/canvas/WebGLContextObject.h"
-
 #include <wtf/PassRefPtr.h>
 #include <wtf/RefCounted.h>
 
 namespace WebCore {
 
-class WebGLVertexArrayObjectOES : public WebGLContextObject {
+class WebGLVertexArrayObjectOES : public WebGLContextObject, public ScriptWrappable {
 public:
     enum VaoType {
         VaoTypeDefault,
         VaoTypeUser,
     };
-    
+
     virtual ~WebGLVertexArrayObjectOES();
 
     static PassRefPtr<WebGLVertexArrayObjectOES> create(WebGLRenderingContext*, VaoType);
-    
+
     // Cached values for vertex attrib range checks
     struct VertexAttribState {
         VertexAttribState()
             : enabled(false)
             , bytesPerElement(0)
             , size(4)
             , type(GraphicsContext3D::FLOAT)
             , normalized(false)
             , stride(16)
             , originalStride(0)
             , offset(0)
         {
         }
-        
+
         bool enabled;
         RefPtr<WebGLBuffer> bufferBinding;
         GC3Dsizei bytesPerElement;
         GC3Dint size;
         GC3Denum type;
         bool normalized;
         GC3Dsizei stride;
         GC3Dsizei originalStride;
         GC3Dintptr offset;
     };
-    
+
     bool isDefaultObject() const { return m_type == VaoTypeDefault; }
-    
+
     bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
     void setHasEverBeenBound() { m_hasEverBeenBound = true; }
-    
+
     PassRefPtr<WebGLBuffer> getElementArrayBuffer() const { return m_boundElementArrayBuffer; }
     void setElementArrayBuffer(PassRefPtr<WebGLBuffer>);
-    
+
     VertexAttribState& getVertexAttribState(int index) { return m_vertexAttribState[index]; }
     void setVertexAttribState(GC3Duint, GC3Dsizei, GC3Dint, GC3Denum, GC3Dboolean, GC3Dsizei, GC3Dintptr, PassRefPtr<WebGLBuffer>);
     void unbindBuffer(PassRefPtr<WebGLBuffer>);
 
 private:
     WebGLVertexArrayObjectOES(WebGLRenderingContext*, VaoType);
 
     virtual void deleteObjectImpl(GraphicsContext3D*, Platform3DObject);
 
     virtual bool isVertexArray() const { return true; }
-    
+
     VaoType m_type;
     bool m_hasEverBeenBound;
     RefPtr<WebGLBuffer> m_boundElementArrayBuffer;
     Vector<VertexAttribState> m_vertexAttribState;
 };
 
 } // namespace WebCore
 
 #endif // WebGLVertexArrayObjectOES_h