Add encoded_data_length argument to didDownloadData delegate method

Source/web/tests/AssociatedURLLoaderTest.cpp

 /*
  * Copyright (C) 2011 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
@@ skipping 137 matching lines @@
 
     void didReceiveResponse(WebURLLoader* loader, const WebURLResponse& response)
     {
         m_didReceiveResponse = true;
         m_actualResponse = WebURLResponse(response);
         EXPECT_EQ(m_expectedLoader, loader);
         EXPECT_EQ(m_expectedResponse.url(), response.url());
         EXPECT_EQ(m_expectedResponse.httpStatusCode(), response.httpStatusCode());
     }
 
-    void didDownloadData(WebURLLoader* loader, int dataLength)
+    void didDownloadData(WebURLLoader* loader, int dataLength, int encodedDataLength)
     {
         m_didDownloadData = true;
         EXPECT_EQ(m_expectedLoader, loader);
     }
 
     void didReceiveData(WebURLLoader* loader, const char* data, int dataLength, int encodedDataLength)
     {
         m_didReceiveData = true;
         EXPECT_EQ(m_expectedLoader, loader);
         EXPECT_TRUE(data);
@@ skipping 453 matching lines @@
     m_expectedLoader->loadAsynchronously(request, this);
     serveRequests();
     EXPECT_TRUE(m_didReceiveResponse);
     EXPECT_TRUE(m_didReceiveData);
     EXPECT_TRUE(m_didFinishLoading);
 
     EXPECT_FALSE(m_actualResponse.httpHeaderField(headerNameString).isEmpty());
 }
 
 }