Support needed to measure user and service traffic in Chrome.

net/url_request/url_fetcher_core.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.
 
 #ifndef NET_URL_REQUEST_URL_FETCHER_CORE_H_
 #define NET_URL_REQUEST_URL_FETCHER_CORE_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 98 matching lines @@
   void SaveResponseWithWriter(
       scoped_ptr<URLFetcherResponseWriter> response_writer);
   HttpResponseHeaders* GetResponseHeaders() const;
   HostPortPair GetSocketAddress() const;
   bool WasFetchedViaProxy() const;
   bool WasCached() const;
   const GURL& GetOriginalURL() const;
   const GURL& GetURL() const;
   const URLRequestStatus& GetStatus() const;
   int GetResponseCode() const;
+  int64 GetBytesReceivedSize() const;
+  int64 GetBytesSentSize() const;
   const ResponseCookies& GetCookies() const;
   int64_t GetReceivedResponseContentLength() const;
   int64_t GetTotalReceivedBytes() const;
   // Reports that the received content was malformed (i.e. failed parsing
   // or validation). This makes the throttling logic that does exponential
   // back-off when servers are having problems treat the current request as
   // a failure. Your call to this method will be ignored if your request is
   // already considered a failure based on the HTTP response code or response
   // headers.
   void ReceivedContentWasMalformed();
@@ skipping 198 matching lines @@
   // Timer to poll the progress of uploading for POST and PUT requests.
   // When crbug.com/119629 is fixed, scoped_ptr is not necessary here.
   scoped_ptr<base::RepeatingTimer<URLFetcherCore> >
       upload_progress_checker_timer_;
   // Number of bytes sent so far.
   int64 current_upload_bytes_;
   // Number of bytes received so far.
   int64 current_response_bytes_;
   // Total expected bytes to receive (-1 if it cannot be determined).
   int64 total_response_bytes_;
-
+  // Total received bytes size

[bengr, 2015/08/07 18:00:02]

Add a period.

[amohammadkhan, 2015/08/11 22:04:36]

Done.

+  int64 total_downloaded_bytes_;
+  // total sent bytes size

[bengr, 2015/08/07 18:00:02]

You can be more specific for these. Total bytes sent to the session layer, e.g.,
QUIC, which may, in turn, compress headers and frame the request.

[amohammadkhan, 2015/08/11 22:04:36]

Done.

+  int64 total_sent_bytes_;
   // TODO(willchan): Get rid of this after debugging crbug.com/90971.
   base::debug::StackTrace stack_trace_;
 
   static base::LazyInstance<Registry> g_registry;
 
   DISALLOW_COPY_AND_ASSIGN(URLFetcherCore);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_FETCHER_CORE_H_