NQE: Make params a class

net/nqe/network_quality_estimator.h

Index: net/nqe/network_quality_estimator.h
diff --git a/net/nqe/network_quality_estimator.h b/net/nqe/network_quality_estimator.h
index 5c2718a12b6df2eb8ba4763a739942f511798982..ab5cdf8c27f773d88de6ebf1d1db2c79092821c7 100644
--- a/net/nqe/network_quality_estimator.h
+++ b/net/nqe/network_quality_estimator.h
@@ -28,6 +28,7 @@
 #include "net/nqe/external_estimate_provider.h"
 #include "net/nqe/network_id.h"
 #include "net/nqe/network_quality.h"
+#include "net/nqe/network_quality_estimator_params.h"
 #include "net/nqe/network_quality_observation.h"
 #include "net/nqe/network_quality_observation_source.h"
 #include "net/nqe/network_quality_store.h"
@@ -536,8 +537,7 @@ class NET_EXPORT NetworkQualityEstimator
   // the field trial parameters. For each effective connection type, a model
   // (currently composed of a RTT threshold and a downlink throughput threshold)
   // is provided by the field trial.
-  void ObtainOperatingParams(
-      const std::map<std::string, std::string>& variation_params);
+  void ObtainOperatingParams();
 
   // Adds the default median RTT and downstream throughput estimate for the
   // current connection type to the observation buffer.
@@ -650,6 +650,9 @@ class NET_EXPORT NetworkQualityEstimator
 
   const char* GetNameForStatistic(int i) const;
 
+  // Params to configure the network quality estimator.
+  const nqe::internal::NetworkQualityEstimatorParams params_;
+
   // Determines if the requests to local host can be used in estimating the
   // network quality. Set to true only for tests.
   bool use_localhost_requests_;