| // Copyright 2013 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_METRICS_VARIATIONS_EXPERIMENT_LABELS_WIN_H_ |
| #define CHROME_COMMON_METRICS_VARIATIONS_EXPERIMENT_LABELS_WIN_H_ |
| |
| #include "base/metrics/field_trial.h" |
| #include "base/strings/string16.h" |
| |
| namespace chrome_variations { |
| |
| // Takes the list of active groups and builds the label for the ones that have |
| // Google Update VariationID associated with them. This will return an empty |
| // string if there are no such groups. |
| string16 BuildGoogleUpdateExperimentLabel( |
| const base::FieldTrial::ActiveGroups& active_groups); |
| |
| // Creates a final combined experiment labels string with |variation_labels| |
| // and |other_labels|, appropriately appending a separator based on their |
| // contents. It is assumed that |variation_labels| and |other_labels| do not |
| // have leading or trailing separators. |
| string16 CombineExperimentLabels(const string16& variation_labels, |
| const string16& other_labels); |
| |
| // Takes the value of experiment_labels from the registry and returns a valid |
| // experiment_labels string value containing only the labels that are not |
| // associated with Chrome Variations. |
| string16 ExtractNonVariationLabels(const string16& labels); |
| |
| } // namespace chrome_variations |
| |
| #endif // CHROME_COMMON_METRICS_VARIATIONS_EXPERIMENT_LABELS_WIN_H_ |
