diff -r 000000000000 -r 4f2f89ce4247 JavaScriptCore/wtf/WTFThreadData.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/JavaScriptCore/wtf/WTFThreadData.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2008, 2010 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 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. 
+ *
+ */
+
+#include "config.h"
+#include "WTFThreadData.h"
+
+namespace WTF {
+
+#if WTFTHREADDATA_MULTITHREADED
+ThreadSpecific<WTFThreadData>* WTFThreadData::staticData;
+#else
+WTFThreadData* WTFThreadData::staticData;
+#endif
+
+WTFThreadData::WTFThreadData()
+    : m_atomicStringTable(0)
+    , m_atomicStringTableDestructor(0)
+#if USE(JSC)
+    , m_defaultIdentifierTable(new JSC::IdentifierTable())
+    , m_currentIdentifierTable(m_defaultIdentifierTable)
+#endif
+{
+}
+
+WTFThreadData::~WTFThreadData()
+{
+    if (m_atomicStringTableDestructor)
+        m_atomicStringTableDestructor(m_atomicStringTable);
+#if USE(JSC)
+    delete m_defaultIdentifierTable;
+#endif
+}
+
+} // namespace WebCore