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diff --git a/Source/WTF/wtf/StringPrintStream.h b/Source/WTF/wtf/StringPrintStream.h
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+++ b/Source/WTF/wtf/StringPrintStream.h
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+/*
+ * Copyright (C) 2012 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 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 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 StringPrintStream_h
+#define StringPrintStream_h
+
+#include <wtf/PrintStream.h>
+#include <wtf/text/CString.h>
+
+namespace WTF {
+
+class StringPrintStream : public PrintStream {
+public:
+    StringPrintStream();
+    ~StringPrintStream();
+    
+    virtual void vprintf(const char* format, va_list) WTF_ATTRIBUTE_PRINTF(2, 0);
+    
+    CString toCString();
+    
+private:
+    void increaseSize(size_t);
+    
+    char* m_buffer;
+    size_t m_next;
+    size_t m_size;
+    char m_inlineBuffer[128];
+};
+
+// Stringify any type T that has a WTF::printInternal(PrintStream&, const T&)
+template<typename T>
+CString toCString(const T& value)
+{
+    StringPrintStream stream;
+    stream.print(value);
+    return stream.toCString();
+}
+
+} // namespace WTF
+
+using WTF::StringPrintStream;
+using WTF::toCString;
+
+#endif // StringPrintStream_h
+