Propagate the encoded data length through OnDownloadData delegate method

chrome/renderer/extensions/extension_localization_peer.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_
 #define CHROME_RENDERER_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_
 
 #include <string>
 
 #include "ipc/ipc_sender.h"
@@ skipping 19 matching lines @@
 
   // ResourceLoaderBridge::Peer methods.
   virtual void OnUploadProgress(uint64 position, uint64 size) OVERRIDE;
   virtual bool OnReceivedRedirect(
       const GURL& new_url,
       const webkit_glue::ResourceResponseInfo& info,
       bool* has_new_first_party_for_cookies,
       GURL* new_first_party_for_cookies) OVERRIDE;
   virtual void OnReceivedResponse(
       const webkit_glue::ResourceResponseInfo& info) OVERRIDE;
-  virtual void OnDownloadedData(int len) OVERRIDE {}
+  virtual void OnDownloadedData(int len, int encoded_data_length) OVERRIDE {}
   virtual void OnReceivedData(const char* data,
                               int data_length,
                               int encoded_data_length) OVERRIDE;
   virtual void OnCompletedRequest(
       int error_code,
       bool was_ignored_by_handler,
       const std::string& security_info,
       const base::TimeTicks& completion_time) OVERRIDE;
 
  private:
@@ skipping 23 matching lines @@
   std::string data_;
 
   // Original request URL.
   GURL request_url_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ExtensionLocalizationPeer);
 };
 
 #endif  // CHROME_RENDERER_EXTENSIONS_EXTENSION_LOCALIZATION_PEER_H_