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diff --git a/WebCore/html/canvas/CanvasNumberArray.h b/WebCore/html/canvas/CanvasNumberArray.h
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+++ b/WebCore/html/canvas/CanvasNumberArray.h
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+/*
+ * 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
+ *    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 CanvasNumberArray_h
+#define CanvasNumberArray_h
+
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/Vector.h>
+#include <limits>
+
+namespace WebCore {
+
+    class String;
+    
+    class CanvasNumberArray : public RefCounted<CanvasNumberArray> {
+    public:
+        static PassRefPtr<CanvasNumberArray> create(unsigned length);
+        
+        Vector<float>& data() { return m_data; }
+        const Vector<float>& data() const { return m_data; }
+
+        unsigned length() const { return m_data.size(); }
+        float item(unsigned index) const { return (index >= m_data.size()) ? 0 : m_data[index]; }
+
+    private:
+        CanvasNumberArray(unsigned length);
+        Vector<float> m_data;
+    };
+    
+} // namespace WebCore
+
+#endif // CanvasNumberArray_h