Update WebGLVertexArrayObjectOES to WebGLVertexArrayObject for WebGL2

Source/core/html/canvas/WebGLVertexArrayObject.h

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebGLVertexArrayObject_h
+#define WebGLVertexArrayObject_h
+
+#include "core/html/canvas/WebGLVertexArrayObjectBase.h"
+#include "wtf/PassRefPtr.h"
+
+namespace blink {
+
+class WebGLVertexArrayObject final : public WebGLVertexArrayObjectBase {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    static PassRefPtrWillBeRawPtr<WebGLVertexArrayObject> create(WebGLRenderingContextBase*, VaoType);
+
+private:
+    explicit WebGLVertexArrayObject(WebGLRenderingContextBase*, VaoType);
+};
+
+} // namespace blink
+
+#endif // WebGLVertexArrayObject_h