Add an autoconf field to printer objects.

chrome/browser/chromeos/printing/specifics_translation.cc

 // Copyright 2017 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.
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/printing/specifics_translation.h"
 #include "chromeos/printing/printer_configuration.h"
 #include "components/sync/protocol/printer_specifics.pb.h"
 
 namespace chromeos {
 namespace printing {
 
 namespace {
 
 Printer::PpdReference SpecificsToPpd(
     const sync_pb::PrinterPPDReference& specifics) {
   Printer::PpdReference ref;
-  if (specifics.has_user_supplied_ppd_url()) {
+  if (specifics.autoconf()) {
+    ref.autoconf = specifics.autoconf();
+  } else if (specifics.has_user_supplied_ppd_url()) {
     ref.user_supplied_ppd_url = specifics.user_supplied_ppd_url();
-  }
-
-  if (specifics.has_effective_make_and_model()) {
+  } else if (specifics.has_effective_make_and_model()) {
     ref.effective_make_and_model = specifics.effective_make_and_model();
   }
 
   return ref;
 }
 
+// Overwrite fields in |specifics| with an appropriately filled field from
+// |ref|.  If |ref| is the default object, nothing will be changed in
+// |specifics|.
 void MergeReferenceToSpecifics(sync_pb::PrinterPPDReference* specifics,
                                const Printer::PpdReference& ref) {
-  if (!ref.user_supplied_ppd_url.empty()) {
+  if (ref.autoconf) {
+    specifics->Clear();
+    specifics->set_autoconf(ref.autoconf);
+  } else if (!ref.user_supplied_ppd_url.empty()) {
+    specifics->Clear();
     specifics->set_user_supplied_ppd_url(ref.user_supplied_ppd_url);
-  }
-
-  if (!ref.effective_make_and_model.empty()) {
+  } else if (!ref.effective_make_and_model.empty()) {
+    specifics->Clear();
     specifics->set_effective_make_and_model(ref.effective_make_and_model);
   }
 }
 
 }  // namespace
 
 std::unique_ptr<Printer> SpecificsToPrinter(
     const sync_pb::PrinterSpecifics& specifics) {
   DCHECK(!specifics.id().empty());
 
@@ skipping 43 matching lines @@
 
   if (!printer.uuid().empty())
     specifics->set_uuid(printer.uuid());
 
   MergeReferenceToSpecifics(specifics->mutable_ppd_reference(),
                             printer.ppd_reference());
 }
 
 }  // namespace printing
 }  // namespace chromeos