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

Source/core/html/canvas/OESStandardDerivatives.h

Index: Source/core/html/canvas/OESStandardDerivatives.h
diff --git a/Source/core/html/canvas/OESStandardDerivatives.h b/Source/core/html/canvas/OESStandardDerivatives.h
index 1dbacb6bea3bd98a502c88fd3bb4f629c942712a..d2d2ce20f85dd2576e429b00f7de5e2cc7b35756 100644
--- a/Source/core/html/canvas/OESStandardDerivatives.h
+++ b/Source/core/html/canvas/OESStandardDerivatives.h
@@ -26,12 +26,13 @@
 #ifndef OESStandardDerivatives_h
 #define OESStandardDerivatives_h
 
+#include "bindings/v8/ScriptWrappable.h"
 #include "core/html/canvas/WebGLExtension.h"
-#include <wtf/PassOwnPtr.h>
+#include "wtf/PassOwnPtr.h"
 
 namespace WebCore {
 
-class OESStandardDerivatives : public WebGLExtension {
+class OESStandardDerivatives : public WebGLExtension, public ScriptWrappable {
 public:
     static PassOwnPtr<OESStandardDerivatives> create(WebGLRenderingContext*);
     static bool supported(WebGLRenderingContext*);