Update ResourceResponse::encodedDataLength when response is completed

third_party/WebKit/public/platform/WebURLLoaderClient.h

 /*
  * 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
@@ skipping 91 matching lines @@
                                         const char* data,
                                         int dataLength) {}
 
   // Called when the load completes successfully.
   // |totalEncodedDataLength| may be equal to kUnknownEncodedDataLength.
   virtual void didFinishLoading(WebURLLoader* loader,
                                 double finishTime,
                                 int64_t totalEncodedDataLength) {}
 
   // Called when the load completes with an error.
-  virtual void didFail(WebURLLoader*, const WebURLError&) {}
+  // |totalEncodedDataLength| may be equal to kUnknownEncodedDataLength.
+  virtual void didFail(WebURLLoader*,
+                       const WebURLError&,
+                       int64_t totalEncodedDataLength) {}
 
   // Value passed to didFinishLoading when total encoded data length isn't
   // known.
   static const int64_t kUnknownEncodedDataLength = -1;
 
  protected:
   virtual ~WebURLLoaderClient() {}
 };
 
 }  // namespace blink
 
 #endif