Support needed to measure user and service traffic in Chrome.

net/url_request/url_fetcher_impl.h

 // Copyright (c) 2012 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.
 
 // This file contains URLFetcher, a wrapper around URLRequest that handles
 // low-level details like thread safety, ref counting, and incremental buffer
 // reading.  This is useful for callers who simply want to get the data from a
 // URL and don't care about all the nitty-gritty details.
 //
 // NOTE(willchan): Only one "IO" thread is supported for URLFetcher.  This is a
@@ skipping 67 matching lines @@
   void SaveResponseToTemporaryFile(
       scoped_refptr<base::SequencedTaskRunner> file_task_runner) override;
   void SaveResponseWithWriter(
       scoped_ptr<URLFetcherResponseWriter> response_writer) override;
   HttpResponseHeaders* GetResponseHeaders() const override;
   HostPortPair GetSocketAddress() const override;
   bool WasFetchedViaProxy() const override;
   bool WasCached() const override;
   int64_t GetReceivedResponseContentLength() const override;
   int64_t GetTotalReceivedBytes() const override;
+  int64 GetBytesReceivedSize() const override;
+  int64 GetBytesSentSize() const override;
   void Start() override;
   const GURL& GetOriginalURL() const override;
   const GURL& GetURL() const override;
   const URLRequestStatus& GetStatus() const override;
   int GetResponseCode() const override;
   const ResponseCookies& GetCookies() const override;
   void ReceivedContentWasMalformed() override;
   bool GetResponseAsString(std::string* out_response_string) const override;
   bool GetResponseAsFilePath(bool take_ownership,
                              base::FilePath* out_response_path) const override;
@@ skipping 26 matching lines @@
   static int GetNumFetcherCores();
 
   const scoped_refptr<URLFetcherCore> core_;
 
   DISALLOW_COPY_AND_ASSIGN(URLFetcherImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_FETCHER_IMPL_H_