Move chrome/common/metrics/variations to chrome/common/variations.

chrome/common/variations/experiment_labels.h

 // 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_H_
-#define CHROME_COMMON_METRICS_VARIATIONS_EXPERIMENT_LABELS_H_
+#ifndef CHROME_COMMON_VARIATIONS_EXPERIMENT_LABELS_H_
+#define CHROME_COMMON_VARIATIONS_EXPERIMENT_LABELS_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.
 base::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.
 base::string16 CombineExperimentLabels(const base::string16& variation_labels,
                                        const base::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.
 base::string16 ExtractNonVariationLabels(const base::string16& labels);
 
 }  // namespace chrome_variations
 
-#endif  // CHROME_COMMON_METRICS_VARIATIONS_EXPERIMENT_LABELS_H_
+#endif  // CHROME_COMMON_VARIATIONS_EXPERIMENT_LABELS_H_