Enable NQE when Cronet Engine is built

net/nqe/throughput_analyzer.h

Index: net/nqe/throughput_analyzer.h
diff --git a/net/nqe/throughput_analyzer.h b/net/nqe/throughput_analyzer.h
index 649d76bb68d2fcfbb8e320a20e0a1f81beb70483..3ef78592b0c466fd97591611eb1583435c3ad300 100644
--- a/net/nqe/throughput_analyzer.h
+++ b/net/nqe/throughput_analyzer.h
@@ -70,6 +70,18 @@ class NET_EXPORT_PRIVATE ThroughputAnalyzer {
   // 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);
+
+  // |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 {
@@ -155,12 +167,12 @@ class NET_EXPORT_PRIVATE ThroughputAnalyzer {
 
   // 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_;