Convert Pass()→std::move() in ui/

ui/app_list/search/history_data.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 "ui/app_list/search/history_data.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 111 matching lines @@
          ++secondary_it) {
       const std::string& secondary_result_id = (*secondary_it);
 
       // Secondary match only gets added if there there is no primary match.
       if (results->find(secondary_result_id) != results->end())
         continue;
       (*results)[secondary_result_id] = secondary_type;
     }
   }
 
-  return results.Pass();
+  return results;
 }
 
 void HistoryData::AddObserver(HistoryDataObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void HistoryData::RemoveObserver(HistoryDataObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
@@ skipping 23 matching lines @@
                     &EntrySortByTimeAscending);
 
   for (size_t i = 0; i < entries_to_remove; ++i) {
     const std::string& query = *entries[i].query;
     store_->Delete(query);
     associations_.erase(query);
   }
 }
 
 }  // namespace app_list