diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/cpp/WebDOMCString.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/cpp/WebDOMCString.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) Research In Motion Limited 2010. All rights reserved.
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "WebDOMCString.h"
+
+#include "TextEncoding.h"
+#include "WebDOMString.h"
+#include <wtf/text/CString.h>
+
+class WebDOMCStringPrivate : public WTF::CStringBuffer {
+};
+
+void WebDOMCString::reset()
+{
+    if (m_private) {
+        m_private->deref();
+        m_private = 0;
+    }
+}
+
+void WebDOMCString::assign(const WebDOMCString& other)
+{
+    assign(const_cast<WebDOMCStringPrivate*>(other.m_private));
+}
+
+void WebDOMCString::assign(const char* data, size_t length)
+{
+    char* newData;
+    RefPtr<WTF::CStringBuffer> buffer =
+        WTF::CString::newUninitialized(length, newData).buffer();
+    memcpy(newData, data, length);
+    assign(static_cast<WebDOMCStringPrivate*>(buffer.get()));
+}
+
+size_t WebDOMCString::length() const
+{
+    if (!m_private)
+        return 0;
+    // NOTE: The buffer's length includes the null byte.
+    return const_cast<WebDOMCStringPrivate*>(m_private)->length() - 1;
+}
+
+const char* WebDOMCString::data() const
+{
+    if (!m_private)
+        return 0;
+    return const_cast<WebDOMCStringPrivate*>(m_private)->data();
+}
+
+WebDOMString WebDOMCString::utf16() const
+{
+    return WebCore::UTF8Encoding().decode(data(), length());
+}
+
+WebDOMCString WebDOMCString::fromUTF16(const WebUChar* data, size_t length)
+{
+    return WebCore::UTF8Encoding().encode(
+        data, length, WebCore::QuestionMarksForUnencodables);
+}
+
+WebDOMCString WebDOMCString::fromUTF16(const WebUChar* data)
+{
+    size_t len = 0;
+    while (data[len] != WebUChar(0))
+        len++;
+    return fromUTF16(data, len);
+}
+
+WebDOMCString::WebDOMCString(const WTF::CString& s)
+    : m_private(static_cast<WebDOMCStringPrivate*>(s.buffer()))
+{
+    if (m_private)
+        m_private->ref();
+}
+
+WebDOMCString& WebDOMCString::operator=(const WTF::CString& s)
+{
+    assign(static_cast<WebDOMCStringPrivate*>(s.buffer()));
+    return *this;
+}
+
+WebDOMCString::operator WTF::CString() const
+{
+    return m_private;
+}
+
+void WebDOMCString::assign(WebDOMCStringPrivate* p)
+{
+    // Take care to handle the case where m_private == p
+    if (p)
+        p->ref();
+    if (m_private)
+        m_private->deref();
+    m_private = p;
+}