Support needed to measure user and service traffic in Chrome.

net/url_request/data_use_measurement.h

+// Copyright 2015 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_DATA_USE_MEASUREMENT_H_
+#define NET_URL_REQUEST_DATA_USE_MEASUREMENT_H_
+
+namespace net {
+class URLFetcher;
+}  // namespace net
+
+// Records the data use of |service_name| based on the information included in
+// fetcher. Normally used for recording data use of services using URLFetcher.
+// After extracting necessary data, such as message size in different
+// directions, calls the function to record use in DataUse.Services.{Dimensions}
+// and DataUse.Service.|service_name| histograms.
+void DataUseReport(const std::string& service_name,

[bengr, 2015/08/07 18:00:01]

I don't think you should have files for this lone function.

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

Done.

+                   const net::URLFetcher* fetcher);
+
+#endif  // NET_URL_REQUEST_DATA_USE_MEASUREMENT_H_