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diff --git a/WebCore/bridge/jni/jsc/JavaStringJSC.h b/WebCore/bridge/jni/jsc/JavaStringJSC.h
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+++ b/WebCore/bridge/jni/jsc/JavaStringJSC.h
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+/*
+ * Copyright (C) 2010 Apple Computer, 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:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 JavaStringJSC_h
+#define JavaStringJSC_h
+
+#include "JavaInstanceJSC.h"
+#include "jni_utility.h"
+#include <runtime/JSLock.h>
+
+
+namespace JSC {
+
+namespace Bindings {
+
+class JavaStringImpl {
+public:
+    ~JavaStringImpl()
+    {
+        JSLock lock(SilenceAssertionsOnly);
+        m_rep = 0;
+    }
+
+    void init()
+    {
+        JSLock lock(SilenceAssertionsOnly);
+        m_rep = UString().rep();
+    }
+
+    void init(JNIEnv* e, jstring s)
+    {
+        int size = e->GetStringLength(s);
+        const jchar* uc = getUCharactersFromJStringInEnv(e, s);
+        {
+            JSLock lock(SilenceAssertionsOnly);
+            m_rep = UString(reinterpret_cast<const UChar*>(uc), size).rep();
+        }
+        releaseUCharactersForJStringInEnv(e, s, uc);
+    }
+
+    const char* UTF8String() const
+    {
+        if (!m_utf8String.c_str()) {
+            JSLock lock(SilenceAssertionsOnly);
+            m_utf8String = UString(m_rep).UTF8String();
+        }
+        return m_utf8String.c_str();
+    }
+    const jchar* uchars() const { return (const jchar*)m_rep->data(); }
+    int length() const { return m_rep->size(); }
+    UString uString() const { return UString(m_rep); }
+
+private:
+    RefPtr<UString::Rep> m_rep;
+    mutable CString m_utf8String;
+};
+
+} // namespace Bindings
+
+} // namespace JSC
+
+#endif // JavaStringJSC_h