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

Source/core/html/canvas/WebGLBuffer.cpp

 /*
  * Copyright (C) 2009 Apple 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 25 matching lines @@
 
 PassRefPtr<WebGLBuffer> WebGLBuffer::create(WebGLRenderingContext* ctx)
 {
     return adoptRef(new WebGLBuffer(ctx));
 }
 
 WebGLBuffer::WebGLBuffer(WebGLRenderingContext* ctx)
     : WebGLSharedObject(ctx)
     , m_target(0)
 {
+    ScriptWrappable::init(this);
     setObject(ctx->graphicsContext3D()->createBuffer());
 }
 
 WebGLBuffer::~WebGLBuffer()
 {
     deleteObject(0);
 }
 
 void WebGLBuffer::deleteObjectImpl(GraphicsContext3D* context3d, Platform3DObject object)
 {
       context3d->deleteBuffer(object);
 }
 
 void WebGLBuffer::setTarget(GC3Denum target)
 {
     // In WebGL, a buffer is bound to one target in its lifetime
     if (m_target)
         return;
     if (target == GraphicsContext3D::ARRAY_BUFFER || target == GraphicsContext3D::ELEMENT_ARRAY_BUFFER)
         m_target = target;
 }
 
 }