Convert Sync BirthdayErrorTest to use FakeServer

sync/test/fake_server/fake_server.h

 // Copyright 2014 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 SYNC_TEST_FAKE_SERVER_FAKE_SERVER_H_
 #define SYNC_TEST_FAKE_SERVER_FAKE_SERVER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 39 matching lines @@
   // server. The dictionary keys are the strings generated by ModelTypeToString
   // and the values are ListValues containing StringValue versions of entity
   // names.
   scoped_ptr<base::DictionaryValue> GetEntitiesAsDictionaryValue();
 
   // Adds the FakeServerEntity* owned by |entity| to the server's collection
   // of entities. This method makes no guarantees that the added entity will
   // result in successful server operations.
   void InjectEntity(scoped_ptr<FakeServerEntity> entity);
 
+  // Sets a new store birthday so that tests may trigger a NOT_MY_BIRTHDAY
+  // error. If |store_birthday| is the same as |store_birthday_|, false is
+  // returned and this method has no effect.
+  bool SetNewStoreBirthday(const std::string& store_birthday);
+
   // Adds |observer| to FakeServer's observer list. This should be called
   // before the Profile associated with |observer| is connected to the server.
   void AddObserver(Observer* observer);
 
   // Removes |observer| from the FakeServer's observer list. This method
   // must be called if AddObserver was ever called with |observer|.
   void RemoveObserver(Observer* observer);
 
  private:
   typedef std::map<std::string, FakeServerEntity*> EntityMap;
@@ skipping 38 matching lines @@
   bool IsChild(const std::string& id, const std::string& potential_parent_id);
 
   // Creates and saves tombstones for all children of the entity with the given
   // |id|. A tombstone is not created for the entity itself.
   bool DeleteChildren(const std::string& id);
 
   // This is the last version number assigned to an entity. The next entity will
   // have a version number of version_ + 1.
   int64 version_;
 
-  // The current birthday value.
-  std::string birthday_;
+  // The current store birthday value.
+  std::string store_birthday_;
 
   // All SyncEntity objects saved by the server. The key value is the entity's
   // id string.
   EntityMap entities_;
 
   // All Keystore keys known to the server.
   std::vector<std::string> keystore_keys_;
 
   // FakeServer's observers.
   ObserverList<Observer, true> observers_;
 };
 
 }  // namespace fake_server
 
 #endif  // SYNC_TEST_FAKE_SERVER_FAKE_SERVER_H_