Remove use of stl_util in search_engines.

components/omnibox/browser/scored_history_match_unittest.cc

Index: components/omnibox/browser/scored_history_match_unittest.cc
diff --git a/components/omnibox/browser/scored_history_match_unittest.cc b/components/omnibox/browser/scored_history_match_unittest.cc
index a382a5470bade3acc7f65121fdda26bf5452739c..a4d776115fcc7dfe11775c195f60a585c35a309c 100644
--- a/components/omnibox/browser/scored_history_match_unittest.cc
+++ b/components/omnibox/browser/scored_history_match_unittest.cc
@@ -312,8 +312,8 @@ TEST_F(ScoredHistoryMatchTest, CullSearchResults) {
   data.SetShortName(ASCIIToUTF16("TestEngine"));
   data.SetKeyword(ASCIIToUTF16("TestEngine"));
   data.SetURL("http://testsearch.com/{searchTerms}");
-  TemplateURL* template_url = new TemplateURL(data);
-  template_url_service->Add(template_url);
+  TemplateURL* template_url =
+      template_url_service->Add(base::MakeUnique<TemplateURL>(data));
   template_url_service->SetUserSelectedDefaultSearchProvider(template_url);
   template_url_service->Load();