Update HTML canvas classes to use OVERRIDE / FINAL when needed

Source/core/html/canvas/OESVertexArrayObject.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
@@ skipping 17 matching lines @@
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "core/html/canvas/WebGLExtension.h"
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
 class WebGLRenderingContext;
 class WebGLVertexArrayObjectOES;
 
-class OESVertexArrayObject : public WebGLExtension, public ScriptWrappable {
+class OESVertexArrayObject FINAL : public WebGLExtension, public ScriptWrappable {
 public:
     static PassRefPtr<OESVertexArrayObject> create(WebGLRenderingContext*);
     static bool supported(WebGLRenderingContext*);
     static const char* extensionName();
 
     virtual ~OESVertexArrayObject();
-    virtual ExtensionName name() const;
+    virtual ExtensionName name() const OVERRIDE;
 
     PassRefPtr<WebGLVertexArrayObjectOES> createVertexArrayOES();
     void deleteVertexArrayOES(WebGLVertexArrayObjectOES*);
     GLboolean isVertexArrayOES(WebGLVertexArrayObjectOES*);
     void bindVertexArrayOES(WebGLVertexArrayObjectOES*);
 
 private:
     OESVertexArrayObject(WebGLRenderingContext*);
 };
 
 } // namespace WebCore
 
 #endif // OESVertexArrayObject_h