[Sync] Move ChangeProcessor to model/.

components/sync/model/change_processor.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 COMPONENTS_SYNC_DRIVER_CHANGE_PROCESSOR_H_
-#define COMPONENTS_SYNC_DRIVER_CHANGE_PROCESSOR_H_
+#ifndef COMPONENTS_SYNC_MODEL_CHANGE_PROCESSOR_H_
+#define COMPONENTS_SYNC_MODEL_CHANGE_PROCESSOR_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "components/sync/model/data_type_error_handler.h"
 #include "components/sync/syncable/base_transaction.h"
 #include "components/sync/syncable/change_record.h"
 #include "components/sync/syncable/user_share.h"
@@ skipping 45 matching lines @@
   std::unique_ptr<DataTypeErrorHandler> error_handler_;
 
   // The sync model we are processing changes from.
   UserShare* share_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(ChangeProcessor);
 };
 
 }  // namespace syncer
 
-#endif  // COMPONENTS_SYNC_DRIVER_CHANGE_PROCESSOR_H_
+#endif  // COMPONENTS_SYNC_MODEL_CHANGE_PROCESSOR_H_