diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/CachedScriptSourceProvider.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/CachedScriptSourceProvider.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2008 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 CachedScriptSourceProvider_h
+#define CachedScriptSourceProvider_h
+
+#include "CachedResourceClient.h"
+#include "CachedResourceHandle.h"
+#include "CachedScript.h"
+#include "JSDOMBinding.h" // for stringToUString
+#include "ScriptSourceProvider.h"
+#include <parser/SourceCode.h>
+
+namespace WebCore {
+
+    class CachedScriptSourceProvider : public ScriptSourceProvider, public CachedResourceClient {
+    public:
+        static PassRefPtr<CachedScriptSourceProvider> create(CachedScript* cachedScript) { return adoptRef(new CachedScriptSourceProvider(cachedScript)); }
+
+        virtual ~CachedScriptSourceProvider()
+        {
+            m_cachedScript->removeClient(this);
+        }
+
+        JSC::UString getRange(int start, int end) const { return JSC::UString(m_cachedScript->script().characters() + start, end - start); }
+        const UChar* data() const { return m_cachedScript->script().characters(); }
+        int length() const { return m_cachedScript->script().length(); }
+        const String& source() const { return m_cachedScript->script(); }
+
+    private:
+        CachedScriptSourceProvider(CachedScript* cachedScript)
+            : ScriptSourceProvider(stringToUString(cachedScript->url()))
+            , m_cachedScript(cachedScript)
+        {
+            m_cachedScript->addClient(this);
+        }
+
+        CachedResourceHandle<CachedScript> m_cachedScript;
+    };
+
+    inline JSC::SourceCode makeSource(CachedScript* cachedScript)
+    {
+        return JSC::SourceCode(CachedScriptSourceProvider::create(cachedScript));
+    }
+
+} // namespace WebCore
+
+#endif // CachedScriptSourceProvider_h