Amortize data usage using TrafficStats on Android.

components/data_usage/core/data_use.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 COMPONENTS_DATA_USAGE_CORE_DATA_USE_H_
 #define COMPONENTS_DATA_USAGE_CORE_DATA_USE_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 30 matching lines @@
   net::NetworkChangeNotifier::ConnectionType connection_type;
   // MCC+MNC (mobile country code + mobile network code) of the provider of the
   // SIM when the network traffic was exchanged. Set to empty string if SIM is
   // not present. |mcc_mnc| is set even if data was not exchanged on the
   // cellular network. For dual SIM phones, this is set to the MCC/MNC of the
   // SIM in slot 0.
   std::string mcc_mnc;
 
   int64_t tx_bytes;
   int64_t rx_bytes;
+
+  // TODO in this CL: remove these debug members.

[bengr, 2015/11/10 18:12:50]

Remove them.

[sclittle, 2015/11/11 02:10:08]

Done.

+  int64_t before_tx_bytes;
+  int64_t before_rx_bytes;
+  base::TimeTicks created_ticks;
 };
 
 }  // namespace data_usage
 
 #endif  // COMPONENTS_DATA_USAGE_CORE_DATA_USE_H_