Support needed to measure user and service traffic in Chrome.

chrome/browser/net/chrome_network_delegate.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 CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_
 #define CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
+#include "chrome/browser/net/data_use_measurement.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_metrics.h"
 #include "net/base/network_delegate_impl.h"
 
 class ChromeExtensionsNetworkDelegate;
 class PrefService;
 
 template<class T> class PrefMember;
 
 typedef PrefMember<bool> BooleanPrefMember;
 
@@ skipping 166 matching lines @@
 
   // Weak, owned by our owner.
 #if defined(ENABLE_CONFIGURATION_POLICY)
   const policy::URLBlacklistManager* url_blacklist_manager_;
 #endif
   domain_reliability::DomainReliabilityMonitor* domain_reliability_monitor_;
 
   // When true, allow access to all file:// URLs.
   static bool g_allow_file_access_;
 
+  // Measuring component to measure data use of services.
+  scoped_refptr<DataUseMeasurement> data_use_measurer_;

[sclittle, 2015/08/19 23:32:39]

nit: please either rename the class to DataUseMeasurer or change the name here
to data_use_measurement_.

[sclittle, 2015/08/19 23:32:39]

Also, don't refcount this unless there's a really good reason to refcount it.

[amohammadkhan, 2015/08/21 23:06:31]

Basically I used all the refcounts because of the callback in this class,
because I was not sure is it okay to not use refcounts and handle the lifetime
manually. But after your heads up and more reading about
AppliactionStatusListener, it seems I was over cautious and it was not needed.
So I changed it to normal class.

[amohammadkhan, 2015/08/21 23:06:31]

Done.

+
   bool experimental_web_platform_features_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);
 };
 
 #endif  // CHROME_BROWSER_NET_CHROME_NETWORK_DELEGATE_H_