Sync: fix for the code that checks whether the initial download has completed

sync/test/engine/mock_connection_manager.h

 // Copyright (c) 2012 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.
 //
 // Mock ServerConnectionManager class for use in client unit tests.
 
 #ifndef SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_
 #define SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_
 
 #include <bitset>
@@ skipping 251 matching lines @@
   }
 
   // Explicitly indicate that we will not be fetching some updates.
   void ClearUpdatesQueue() {
     update_queue_.clear();
   }
 
   // Locate the most recent update message for purpose of alteration.
   sync_pb::SyncEntity* GetMutableLastUpdate();
 
+  // Adds a new progress marker to the last update.
+  sync_pb::DataTypeProgressMarker* AddUpdateProgressMarker();
+
  private:
   sync_pb::SyncEntity* AddUpdateFull(syncable::Id id,
                                      syncable::Id parentid,
                                      const std::string& name,
                                      int64 version,
                                      int64 sync_ts,
                                      bool is_dir);
   sync_pb::SyncEntity* AddUpdateFull(const std::string& id,
                                      const std::string& parentid,
                                      const std::string& name,
@@ skipping 135 matching lines @@
   std::string next_token_;
 
   std::vector<sync_pb::ClientToServerMessage> requests_;
 
   DISALLOW_COPY_AND_ASSIGN(MockConnectionManager);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_