Move Field Trial Utils from chrome/common/variations to components/variations/field_trial_util

chrome/common/variations/variations_util.h

-// Copyright 2014 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 CHROME_COMMON_VARIATIONS_VARIATIONS_UTIL_H_
-#define CHROME_COMMON_VARIATIONS_VARIATIONS_UTIL_H_
-
-#include <string>
-
-namespace base {
-class FeatureList;
-}
-
-namespace chrome_variations {
-
-struct FieldTrialTestingConfig;
-
-// Provides a mechanism to associate multiple set of params to multiple groups
-// with a formatted string specified from commandline. See
-// kForceFieldTrialParams in chrome/common/chrome_switches.cc for more details
-// on the formatting.
-bool AssociateParamsFromString(const std::string& variations_string);
-
-// Provides a mechanism to associate multiple set of params and features to
-// multiple groups with the |config| struct. This will also force the selection
-// of FieldTrial groups specified in the |config|. Registers features associated
-// with default field trials with |feature_list|.
-void AssociateParamsFromFieldTrialConfig(const FieldTrialTestingConfig& config,
-                                         base::FeatureList* feature_list);
-
-// Associates params and features to FieldTrial groups and forces the selection
-// of groups specified in testing/variations/fieldtrial_testing_config_*.json.
-// Registers features associated with default field trials with |feature_list|.
-void AssociateDefaultFieldTrialConfig(base::FeatureList* feature_list);
-
-}  // namespace chrome_variations
-
-#endif  // CHROME_COMMON_VARIATIONS_VARIATIONS_UTIL_H_