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diff --git a/WebCore/loader/DocumentThreadableLoader.h b/WebCore/loader/DocumentThreadableLoader.h
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+/*
+ * Copyright (c) 2009, Google 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 DocumentThreadableLoader_h
+#define DocumentThreadableLoader_h
+
+#include "SubresourceLoaderClient.h"
+#include "ThreadableLoader.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+    class Document;
+    class ResourceRequest;
+    class ThreadableLoaderClient;
+
+    class DocumentThreadableLoader : public RefCounted<DocumentThreadableLoader>, public ThreadableLoader, private SubresourceLoaderClient  {
+    public:
+        static PassRefPtr<DocumentThreadableLoader> create(Document*, ThreadableLoaderClient*, const ResourceRequest&, LoadCallbacks, ContentSniff);
+        virtual ~DocumentThreadableLoader();
+
+        virtual void cancel();
+
+        using RefCounted<DocumentThreadableLoader>::ref;
+        using RefCounted<DocumentThreadableLoader>::deref;
+
+    protected:
+        virtual void refThreadableLoader() { ref(); }
+        virtual void derefThreadableLoader() { deref(); }
+
+    private:
+        DocumentThreadableLoader(Document*, ThreadableLoaderClient*, const ResourceRequest&, LoadCallbacks, ContentSniff);
+        virtual void willSendRequest(SubresourceLoader*, ResourceRequest&, const ResourceResponse& redirectResponse);
+        virtual void didSendData(SubresourceLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
+
+        virtual void didReceiveResponse(SubresourceLoader*, const ResourceResponse&);
+        virtual void didReceiveData(SubresourceLoader*, const char*, int lengthReceived);
+        virtual void didFinishLoading(SubresourceLoader*);
+        virtual void didFail(SubresourceLoader*, const ResourceError&);
+
+        virtual void receivedCancellation(SubresourceLoader*, const AuthenticationChallenge&);
+
+        RefPtr<SubresourceLoader> m_loader;
+        ThreadableLoaderClient* m_client;
+        Document* m_document;
+    };
+
+} // namespace WebCore
+
+#endif // DocumentThreadableLoader_h