Enable NQE when Cronet Engine is built

net/nqe/throughput_analyzer.h

 // Copyright 2016 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_THROUGHPUT_ANALYZER_H_
 #define NET_NQE_THROUGHPUT_ANALYZER_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
@@ skipping 52 matching lines @@
 
   // Notifies |this| that the headers of |request| are about to be sent.
   void NotifyStartTransaction(const URLRequest& request);
 
   // Notifies |this| that |request| has completed.
   void NotifyRequestCompleted(const URLRequest& request);
 
   // Notifies |this| of a change in connection type.
   void OnConnectionTypeChanged();
 
+  // |use_local_host_requests_for_tests| should only be true when testing
+  // against local HTTP server and allows the requests to local host to be
+  // used for network quality estimation.
+  void SetUseLocalHostRequestsForTesting(
+      bool use_local_host_requests_for_tests);

[mef, 2016/06/24 20:10:37]

nit: drop '_for_tests' for consistency.

[tbansal1, 2016/06/24 22:41:39]

Done.

+
+  // |use_smaller_responses_for_tests| should only be true when testing, and
+  // allows the responses smaller than |kMinTransferSizeInBits| or shorter than
+  // |kMinRequestDurationMicroseconds| to be used for network quality
+  // estimation.
+  void SetUseSmallResponsesForTesting(bool use_small_responses);
+
  protected:
   // Exposed for testing.
   bool disable_throughput_measurements() const {
     return disable_throughput_measurements_;
   }
 
   // Returns the number of bits received by Chromium so far. The count may not
   // start from zero, so the caller should only look at difference from a prior
   // call. The count is obtained by polling TrafficStats on Android, and
   // net::NetworkActivityMonitor on all other platforms. Virtualized for
@@ skipping 65 matching lines @@
   Requests requests_;
 
   // If true, then |this| throughput analyzer stops tracking the throughput
   // observations until Chromium is restarted. This may happen if the throughput
   // analyzer has lost track of the requests that degrade throughput computation
   // accuracy.
   bool disable_throughput_measurements_;
 
   // Determines if the requests to local host can be used in estimating the
   // network quality. Set to true only for tests.
-  const bool use_localhost_requests_for_tests_;
+  bool use_localhost_requests_for_tests_;
 
   // Determines if the responses smaller than |kMinTransferSizeInBits|
   // or shorter than |kMinTransferSizeInBits| can be used in estimating the
   // network quality. Set to true only for tests.
-  const bool use_small_responses_for_tests_;
+  bool use_small_responses_for_tests_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(ThroughputAnalyzer);
 };
 
 }  // namespace internal
 
 }  // namespace nqe
 
 }  // namespace net
 
 #endif  // NET_NQE_THROUGHPUT_ANALYZER_H_