Move active field trial API to variations component.

components/variations/variations_associated_data.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_associated_data.h"
 
 #include <map>
 #include <utility>
 #include <vector>
 
 #include "base/memory/singleton.h"
-#include "components/variations/metrics_util.h"
 
 namespace chrome_variations {
 
+// TODO(asvitkine): Delete these when this file moves to variations namespace.
+using variations::ActiveGroupId;
+using variations::ActiveGroupIdCompare;
+using variations::MakeActiveGroupId;
+
 namespace {
 
 // The internal singleton accessor for the map, used to keep it thread-safe.
 class GroupMapAccessor {
  public:
   typedef std::map<ActiveGroupId, VariationID, ActiveGroupIdCompare>
       GroupToIDMap;
 
   // Retrieve the singleton.
   static GroupMapAccessor* GetInstance() {
@@ skipping 140 matching lines @@
   }
 
   base::Lock lock_;
   std::map<VariationKey, VariationParams> variation_params_;
 
   DISALLOW_COPY_AND_ASSIGN(VariationsParamAssociator);
 };
 
 }  // namespace
 
-ActiveGroupId MakeActiveGroupId(const std::string& trial_name,
-                                const std::string& group_name) {
-  ActiveGroupId id;
-  id.name = metrics::HashName(trial_name);
-  id.group = metrics::HashName(group_name);
-  return id;
-}
-
 void AssociateGoogleVariationID(IDCollectionKey key,
                                 const std::string& trial_name,
                                 const std::string& group_name,
                                 VariationID id) {
   GroupMapAccessor::GetInstance()->AssociateID(
       key, MakeActiveGroupId(trial_name, group_name), id, false);
 }
 
 void AssociateGoogleVariationIDForce(IDCollectionKey key,
                                      const std::string& trial_name,
@@ skipping 43 matching lines @@
   GroupMapAccessor::GetInstance()->ClearAllMapsForTesting();
 }
 
 void ClearAllVariationParams() {
   VariationsParamAssociator::GetInstance()->ClearAllParamsForTesting();
 }
 
 }  // namespace testing
 
 }  // namespace chrome_variations