Plumbing for variations headers from synthetic field trials.

components/variations/variations_associated_data.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 COMPONENTS_VARIATIONS_VARIATIONS_ASSOCIATED_DATA_H_
 #define COMPONENTS_VARIATIONS_VARIATIONS_ASSOCIATED_DATA_H_
 
 #include <map>
 #include <string>
 
@@ skipping 64 matching lines @@
                                 const std::string& trial_name,
                                 const std::string& group_name,
                                 VariationID id);
 
 // As above, but overwrites any previously set id. Thread safe.
 void AssociateGoogleVariationIDForce(IDCollectionKey key,
                                      const std::string& trial_name,
                                      const std::string& group_name,
                                      VariationID id);
 
+// As above, but takes an ActiveGroupId hash pair, rather than the string names.
+void AssociateGoogleVariationIDForceHashes(IDCollectionKey key,
+                                           const ActiveGroupId& active_group,
+                                           VariationID id);
+
 // Retrieve the variations::VariationID associated with a FieldTrial group for
 // collection |key|. The group is denoted by |trial_name| and |group_name|.
 // This will return variations::kEmptyID if there is currently no associated ID
 // for the named group. This API can be nicely combined with
 // FieldTrial::GetActiveFieldTrialGroups() to enumerate the variation IDs for
 // all active FieldTrial groups. Thread safe.
 VariationID GetGoogleVariationID(IDCollectionKey key,
                                  const std::string& trial_name,
                                  const std::string& group_name);
 
+// Same as GetGoogleVariationID(), but takes in a hashed |active_group| rather
+// than the string trial and group name.
+VariationID GetGoogleVariationIDFromHashes(IDCollectionKey key,
+                                           const ActiveGroupId& active_group);
+
 // Associates the specified set of key-value |params| with the variation
 // specified by |trial_name| and |group_name|. Fails and returns false if the
 // specified variation already has params associated with it or the field trial
 // is already active (group() has been called on it). Thread safe.
 bool AssociateVariationParams(const std::string& trial_name,
                               const std::string& group_name,
                               const std::map<std::string, std::string>& params);
 
 // Retrieves the set of key-value |params| for the variation associated with
 // the specified field trial, based on its selected group. If the field trial
@@ skipping 22 matching lines @@
 void ClearAllVariationIDs();
 
 // Clears all of the associated params.
 void ClearAllVariationParams();
 
 }  // namespace testing
 
 }  // namespace variations
 
 #endif  // COMPONENTS_VARIATIONS_VARIATIONS_ASSOCIATED_DATA_H_