Add generic functions for getting typed variation parameter values

components/ntp_snippets/features.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 COMPONENTS_NTP_SNIPPETS_FEATURES_H_
 #define COMPONENTS_NTP_SNIPPETS_FEATURES_H_
 
 #include <string>
 
 #include "base/feature_list.h"
@@ skipping 20 matching lines @@
 // Global toggle for the whole content suggestions feature. If this is set to
 // false, all the per-provider features are ignored.
 extern const base::Feature kContentSuggestionsFeature;
 
 // Feature to allow UI as specified here: https://crbug.com/660837.
 extern const base::Feature kIncreasedVisibility;
 
 // Feature to enable the Fetch More action
 extern const base::Feature kFetchMoreFeature;
 
-// Returns a feature param as an int instead of a string.
-int GetParamAsInt(const base::Feature& feature,
-                  const std::string& param_name,
-                  int default_value);
-
-// Returns a feature param as a bool instead of a string.
-// TODO(jkrcal): Use this function in other code in the ntp_snippets component.
-bool GetParamAsBool(const base::Feature& feature,
-                    const std::string& param_name,
-                    bool default_value);
-
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_FEATURES_H_