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diff --git a/WebKit/chromium/public/WebURLLoaderClient.h b/WebKit/chromium/public/WebURLLoaderClient.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 WebURLLoaderClient_h
+#define WebURLLoaderClient_h
+
+namespace WebKit {
+
+class WebURLLoader;
+class WebURLRequest;
+class WebURLResponse;
+struct WebURLError;
+
+class WebURLLoaderClient {
+public:
+    // Called when following a redirect.  |newRequest| contains the request
+    // generated by the redirect.  The client may modify |newRequest|.
+    virtual void willSendRequest(
+        WebURLLoader*, WebURLRequest& newRequest, const WebURLResponse& redirectResponse) = 0;
+
+    // Called to report upload progress.  The bytes reported correspond to
+    // the HTTP message body.
+    virtual void didSendData(
+        WebURLLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) = 0;
+
+    // Called when response headers are received.
+    virtual void didReceiveResponse(WebURLLoader*, const WebURLResponse&) = 0;
+
+    // Called when a chunk of response data is received.
+    virtual void didReceiveData(WebURLLoader*, const char* data, int dataLength) = 0;
+
+    // Called when the load completes successfully.
+    virtual void didFinishLoading(WebURLLoader*) = 0;
+
+    // Called when the load completes with an error.
+    virtual void didFail(WebURLLoader*, const WebURLError&) = 0;
+
+protected:
+    ~WebURLLoaderClient() { }
+};
+
+} // namespace WebKit
+
+#endif