Expired studies should not enable features.

components/variations/variations_seed_processor.cc

 // 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.
 
 #include "components/variations/variations_seed_processor.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <vector>
@@ skipping 263 matching lines @@
     RegisterVariationIds(experiment, study.name());
 
     has_overrides = has_overrides || experiment.override_ui_string_size() > 0;
     if (experiment.feature_association().enable_feature_size() != 0 ||
         experiment.feature_association().disable_feature_size() != 0) {
       enables_or_disables_features = true;
     }
   }
 
   trial->SetForced();
+  if (processed_study.is_expired())
+    trial->Disable();
 
   if (enables_or_disables_features)
     RegisterFeatureOverrides(processed_study, trial.get(), feature_list);
 
-  if (processed_study.is_expired()) {
-    trial->Disable();
-  } else if (study.activation_type() == Study_ActivationType_ACTIVATION_AUTO) {
+  if (study.activation_type() == Study_ActivationType_ACTIVATION_AUTO) {
     const std::string& group_name = trial->group_name();
 
     // Don't try to apply overrides if none of the experiments in this study had
     // any.
     if (!has_overrides)
       return;
 
     // UI Strings can only be overridden from ACTIVATION_AUTO experiments.
     int experiment_index = processed_study.GetExperimentIndexByName(group_name);
 
     // The field trial was defined from |study|, so the active experiment's name
     // must be in the |study|.
     DCHECK_NE(-1, experiment_index);
 
     ApplyUIStringOverrides(study.experiment(experiment_index),
                            override_callback);
   }
 }
 
 }  // namespace variations