app_list::SearchResult: Duplicate() is const.

ui/app_list/search/mixer.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/mixer.h"
 
 #include <algorithm>
 #include <map>
 #include <set>
 #include <string>
@@ skipping 188 matching lines @@
   for (size_t i = 0; i < ui_results->item_count(); ++i) {
     SearchResult* ui_result = ui_results->GetItemAt(i);
     ui_results_map[ui_result->id()] = ui_result;
   }
   // We have to erase all results at once so that observers are notified with
   // meaningful indexes.
   ui_results->RemoveAll();
 
   // Add items back to |ui_results| in the order of |new_results|.
   for (size_t i = 0; i < new_results.size(); ++i) {
-    SearchResult* new_result = new_results[i].result;
+    const SearchResult& new_result = *new_results[i].result;
     IdToResultMap::const_iterator ui_result_it =
-        ui_results_map.find(new_result->id());
+        ui_results_map.find(new_result.id());
     if (ui_result_it != ui_results_map.end()) {
       // Update and use the old result if it exists.
       SearchResult* ui_result = ui_result_it->second;
-      UpdateResult(*new_result, ui_result);
+      UpdateResult(new_result, ui_result);
 
       // |ui_results| takes back ownership from |ui_results_map| here.
       ui_results->Add(ui_result);
 
       // Remove the item from the map so that it ends up only with unused
       // results.
       ui_results_map.erase(ui_result->id());
     } else {
       // Copy the result from |new_results| otherwise.
-      ui_results->Add(new_result->Duplicate().release());
+      ui_results->Add(new_result.Duplicate().release());
     }
   }
 
   // Delete the results remaining in the map as they are not in the new results.
   for (IdToResultMap::const_iterator ui_result_it = ui_results_map.begin();
        ui_result_it != ui_results_map.end();
        ++ui_result_it) {
     delete ui_result_it->second;
   }
 }
@@ skipping 16 matching lines @@
   results->swap(final);
 }
 
 void Mixer::FetchResults(bool is_voice_query,
                          const KnownResults& known_results) {
   for (const auto& item : groups_)
     item.second->FetchResults(is_voice_query, known_results);
 }
 
 }  // namespace app_list