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diff --git a/Source/JavaScriptCore/wtf/Uint8ClampedArray.h b/Source/JavaScriptCore/wtf/Uint8ClampedArray.h
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+++ b/Source/JavaScriptCore/wtf/Uint8ClampedArray.h
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+/*
+ * Copyright (C) 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+ *
+ * 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 Uint8ClampedArray_h
+#define Uint8ClampedArray_h
+
+#include "Uint8Array.h"
+
+namespace WTF {
+
+class Uint8ClampedArray : public Uint8Array {
+public:
+    static inline PassRefPtr<Uint8ClampedArray> create(unsigned length);
+    static inline PassRefPtr<Uint8ClampedArray> create(unsigned char* array, unsigned length);
+    static inline PassRefPtr<Uint8ClampedArray> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length);
+
+    // Can’t use "using" here due to a bug in the RVCT compiler.
+    bool set(TypedArrayBase<unsigned char>* array, unsigned offset) { return TypedArrayBase<unsigned char>::set(array, offset); }
+    inline void set(unsigned index, double value);
+
+    inline PassRefPtr<Uint8ClampedArray> subarray(int start) const;
+    inline PassRefPtr<Uint8ClampedArray> subarray(int start, int end) const;
+
+private:
+    inline Uint8ClampedArray(PassRefPtr<ArrayBuffer>,
+                             unsigned byteOffset,
+                             unsigned length);
+    // Make constructor visible to superclass.
+    friend class TypedArrayBase<unsigned char>;
+
+    // Overridden from ArrayBufferView.
+    virtual bool isUnsignedByteClampedArray() const { return true; }
+};
+
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(unsigned length)
+{
+    return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(length);
+}
+
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(unsigned char* array, unsigned length)
+{
+    return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(array, length);
+}
+
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
+{
+    return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(buffer, byteOffset, length);
+}
+
+void Uint8ClampedArray::set(unsigned index, double value)
+{
+    if (index >= m_length)
+        return;
+    if (isnan(value) || value < 0)
+        value = 0;
+    else if (value > 255)
+        value = 255;
+    data()[index] = static_cast<unsigned char>(value + 0.5);
+}
+
+Uint8ClampedArray::Uint8ClampedArray(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
+: Uint8Array(buffer, byteOffset, length)
+{
+}
+
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::subarray(int start) const
+{
+    return subarray(start, length());
+}
+
+PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::subarray(int start, int end) const
+{
+    return subarrayImpl<Uint8ClampedArray>(start, end);
+}
+
+} // namespace WTF
+
+using WTF::Uint8ClampedArray;
+
+#endif // Uint8ClampedArray_h