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// 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 COMPONENTS_VARIATIONS_FIELD_TRIAL_CONFIG_FIELD_TRIAL_UTIL_H_
#define COMPONENTS_VARIATIONS_FIELD_TRIAL_CONFIG_FIELD_TRIAL_UTIL_H_
#include <string>
#include "components/variations/proto/study.pb.h"
namespace base {
class FeatureList;
}
namespace variations {
struct FieldTrialTestingConfig;
// Unescapes special characters from the given string.
std::string UnescapeValue(const std::string& value);
// Escapes the trial name, or parameter name, or parameter value in a way that
// makes it usable within variations::switches::kForceFieldTrialParams.
std::string EscapeValue(const std::string& value);
// Provides a mechanism to associate multiple set of params to multiple groups
// with a formatted string specified from commandline. See
// kForceFieldTrialParams in components/variations/variations_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,
Study::Platform platform);
// 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,
Study::Platform platform);
} // namespace variations
#endif // COMPONENTS_VARIATIONS_FIELD_TRIAL_CONFIG_FIELD_TRIAL_UTIL_H_
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