NQE: Store the current network quality in a single variable

net/nqe/network_quality_estimator.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_NQE_NETWORK_QUALITY_ESTIMATOR_H_
 #define NET_NQE_NETWORK_QUALITY_ESTIMATOR_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 673 matching lines @@
   const base::TimeDelta effective_connection_type_recomputation_interval_;
 
   // Time when the effective connection type was last computed.
   base::TimeTicks last_effective_connection_type_computation_;
 
   // Number of RTT and bandwidth samples available when effective connection
   // type was last recomputed.
   size_t rtt_observations_size_at_last_ect_computation_;
   size_t throughput_observations_size_at_last_ect_computation_;
 
-  // Current estimates of the HTTP RTT, transport RTT and downstream throughput
-  // (in kilobits per second).
-  base::TimeDelta http_rtt_;
-  base::TimeDelta transport_rtt_;
-  int32_t downstream_throughput_kbps_;
+  // Current estimates of the network quality.

[bengr, 2016/11/03 15:36:48]

estimates -> estimate?

[tbansal1, 2016/11/07 17:28:19]

Done.

+  nqe::internal::NetworkQuality network_quality_;
 
   // Current effective connection type. It is updated on connection change
   // events. It is also updated every time there is network traffic (provided
   // the last computation was more than
   // |effective_connection_type_recomputation_interval_| ago).
   EffectiveConnectionType effective_connection_type_;
 
   // Minimum and Maximum signal strength (in dbM) observed since last connection
   // change. Updated on connection change and main frame requests.
   int32_t min_signal_strength_since_connection_change_;
@@ skipping 18 matching lines @@
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<NetworkQualityEstimator> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkQualityEstimator);
 };
 
 }  // namespace net
 
 #endif  // NET_NQE_NETWORK_QUALITY_ESTIMATOR_H_