Add an autoconf field to printer objects.

components/sync/protocol/proto_visitors.h

 // Copyright 2016 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_PROTOCOL_PROTO_VISITORS_H_
 #define COMPONENTS_SYNC_PROTOCOL_PROTO_VISITORS_H_
 
 #include "components/sync/protocol/app_list_specifics.pb.h"
 #include "components/sync/protocol/app_notification_specifics.pb.h"
 #include "components/sync/protocol/app_setting_specifics.pb.h"
@@ skipping 651 matching lines @@
 }
 
 VISIT_PROTO_FIELDS(const sync_pb::PreferenceSpecifics& proto) {
   VISIT(name);
   VISIT(value);
 }
 
 VISIT_PROTO_FIELDS(const sync_pb::PrinterPPDReference& proto) {
   VISIT(user_supplied_ppd_url);
   VISIT(effective_make_and_model);
+  VISIT(autoconf);
 }
 
 VISIT_PROTO_FIELDS(const sync_pb::PrinterSpecifics& proto) {
   VISIT(id);
   VISIT(display_name);
   VISIT(description);
   VISIT(manufacturer);
   VISIT(model);
   VISIT(uri);
   VISIT(uuid);
@@ skipping 242 matching lines @@
 
 }  // namespace syncer
 
 #undef VISIT_
 #undef VISIT_BYTES
 #undef VISIT_ENUM
 #undef VISIT
 #undef VISIT_REP
 
 #endif  // COMPONENTS_SYNC_PROTOCOL_PROTO_VISITORS_H_