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diff --git a/Source/WebCore/html/canvas/CanvasPixelArray.h b/Source/WebCore/html/canvas/CanvasPixelArray.h
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+++ b/Source/WebCore/html/canvas/CanvasPixelArray.h
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+/*
+ * Copyright (C) 2008, 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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 CanvasPixelArray_h
+#define CanvasPixelArray_h
+
+#include <wtf/ByteArray.h>
+#include <wtf/MathExtras.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+    
+class CanvasPixelArray : public RefCounted<CanvasPixelArray> {
+public:
+    static PassRefPtr<CanvasPixelArray> create(unsigned length);
+    static PassRefPtr<CanvasPixelArray> create(PassRefPtr<ByteArray>);
+
+    ByteArray* data() { return m_data.get(); }
+    const ByteArray* data() const { return m_data.get(); }
+    unsigned length() const { return m_data->length(); }
+    
+    void set(unsigned index, double value)
+    {
+        m_data->set(index, value);
+    }
+
+    void set(unsigned index, unsigned char value)
+    {
+        m_data->set(index, value);
+    }
+    
+    bool get(unsigned index, unsigned char& result) const
+    {
+        return m_data->get(index, result);
+    }
+
+    unsigned char get(unsigned index) const
+    {
+        return m_data->get(index);
+    }
+
+private:
+    CanvasPixelArray(unsigned length);
+    CanvasPixelArray(PassRefPtr<ByteArray>);
+
+    RefPtr<ByteArray> m_data;
+};
+    
+} // namespace WebCore
+
+#endif // CanvasPixelArray_h