NQE: Separate out params to a different file

net/nqe/network_quality_estimator_params.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_NETWORK_QUALITY_ESTIMATOR_PARAMS_H_
+#define NET_NQE_NETWORK_QUALITY_ESTIMATOR_PARAMS_H_
+
+#include <map>
+#include <string>
+
+#include "net/base/network_change_notifier.h"
+#include "net/nqe/effective_connection_type.h"
+#include "net/nqe/network_quality.h"
+
+namespace net {
+
+namespace nqe {
+
+namespace internal {
+
+// Returns the algorithm that should be used for computing effective connection
+// type based on field trial params. Returns an empty string if a valid
+// algorithm paramter is not present in the field trial params.
+std::string GetEffectiveConnectionTypeAlgorithm(
+    const std::map<std::string, std::string>& variation_params);
+
+// Computes and returns the weight multiplier per second, which represents the
+// factor by which the weight of an observation reduces every second.
+// |variation_params| is the map containing all field trial parameters
+// related to the NetworkQualityualityEstimator field trial.
+double GetWeightMultiplierPerSecond(
+    const std::map<std::string, std::string>& variation_params);
+
+// Returns a descriptive name corresponding to |connection_type|.
+const char* GetNameForConnectionType(
+    net::NetworkChangeNotifier::ConnectionType connection_type);
+
+// Sets the default observation for different connection types in
+// |default_observations|. The default observations are different for different
+// connection types (e.g., 2G, 3G, 4G, WiFi). The default observations may be
+// used to determine the network quality in absence of any other information.
+void ObtainDefaultObservations(
+    const std::map<std::string, std::string>& variation_params,
+    nqe::internal::NetworkQuality default_observations[]);
+
+// Parses the variation paramaters and sets the thresholds for different
+// effective connection types in |connection_thresholds|.
+void ObtainEffectiveConnectionTypeModelParams(
+    const std::map<std::string, std::string>& variation_params,
+    nqe::internal::NetworkQuality connection_thresholds[]);
+
+// Returns the fraction of URL requests that should record the correlation UMA.
+double correlation_uma_logging_probability(
+    const std::map<std::string, std::string>& variation_params);
+
+// Returns true if the effective connection type has been determined via
+// variation parameters.
+bool forced_effective_connection_type_set(
+    const std::map<std::string, std::string>& variation_params);
+
+// Returns the effective connection type that was configured by variation
+// parameters.
+EffectiveConnectionType forced_effective_connection_type(
+    const std::map<std::string, std::string>& variation_params);
+
+}  // namespace internal
+
+}  // namespace nqe
+
+}  // namespace net
+
+#endif  // NET_NQE_NETWORK_QUALITY_ESTIMATOR_PARAMS_H_