Convert Pass()→std::move() in //components/[n-z]*

components/sync_driver/about_sync_util.cc

 // 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.
 
 #include "components/sync_driver/about_sync_util.h"
 
 #include <string>
 
 #include "base/location.h"
 #include "base/strings/string16.h"
@@ skipping 339 matching lines @@
 
   // This list of sections belongs in the 'details' field of the returned
   // message.
   about_info->Set(kDetailsKey, stats_list);
 
   // Populate all the fields we declared above.
   client_version.SetValue(GetVersionString(channel));
 
   if (!service) {
     summary_string.SetValue("Sync service does not exist");
-    return about_info.Pass();
+    return about_info;
   }
 
   syncer::SyncStatus full_status;
   bool is_status_valid = service->QueryDetailedSyncStatus(&full_status);
   bool sync_active = service->IsSyncActive();
   const syncer::sessions::SyncSessionSnapshot& snapshot =
       service->GetLastSessionSnapshot();
 
   if (is_status_valid)
     summary_string.SetValue(service->QuerySyncStatusSummaryString());
@@ skipping 147 matching lines @@
     loc.Write(true, true, &location_str);
     std::string unrecoverable_error_message =
         "Unrecoverable error detected at " + location_str +
         ": " + service->unrecoverable_error_message();
     about_info->SetString("unrecoverable_error_message",
                        unrecoverable_error_message);
   }
 
   about_info->Set("type_status", service->GetTypeStatusMap());
 
-  return about_info.Pass();
+  return about_info;
 }
 
 }  // namespace sync_ui_util
 
 }  // namespace sync_driver