Replace swap with Pass() on setters in drive_api_parser.

chrome/browser/sync_file_system/drive_backend/metadata_database_unittest.cc

 // Copyright 2013 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 "chrome/browser/sync_file_system/drive_backend/metadata_database.h"
 
 #include "base/bind.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 394 matching lines @@
         new google_apis::FileResource);
     ScopedVector<google_apis::ParentReference> parents;
     for (int i = 0; i < file.details().parent_folder_ids_size(); ++i) {
       scoped_ptr<google_apis::ParentReference> parent(
           new google_apis::ParentReference);
       parent->set_file_id(file.details().parent_folder_ids(i));
       parents.push_back(parent.release());
     }
 
     file_resource->set_file_id(file.file_id());
-    file_resource->set_parents(&parents);
+    file_resource->set_parents(parents.Pass());
     file_resource->set_title(file.details().title());
     if (file.details().file_kind() == FILE_KIND_FOLDER)
       file_resource->set_mime_type("application/vnd.google-apps.folder");
     else if (file.details().file_kind() == FILE_KIND_FILE)
       file_resource->set_mime_type("text/plain");
     else
       file_resource->set_mime_type("application/vnd.google-apps.document");
     file_resource->set_md5_checksum(file.details().md5());
     file_resource->set_etag(file.details().etag());
     file_resource->set_created_date(base::Time::FromInternalValue(
@@ skipping 541 matching lines @@
   new_conflict.tracker.set_active(true);
   file.tracker.set_dirty(true);
   file.tracker.set_active(false);
   EXPECT_EQ(SYNC_STATUS_OK, UpdateTracker(new_conflict.tracker));
   VerifyTrackedFiles(tracked_files, arraysize(tracked_files));
   VerifyReloadConsistency();
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system