Remove use of stl_util in search_engines.

chrome/browser/search/instant_unittest_base.cc

Index: chrome/browser/search/instant_unittest_base.cc
diff --git a/chrome/browser/search/instant_unittest_base.cc b/chrome/browser/search/instant_unittest_base.cc
index 17cd80dbe224b8d6b4eaa650a74f5adf095ac1f7..a30e7bb37e3d75dd9f5e501880ee676c3672b9e8 100644
--- a/chrome/browser/search/instant_unittest_base.cc
+++ b/chrome/browser/search/instant_unittest_base.cc
@@ -60,9 +60,8 @@ void InstantUnitTestBase::SetUserSelectedDefaultSearchProvider(
   data.alternate_urls.push_back(base_url + "alt#quux={searchTerms}");
   data.search_terms_replacement_key = "strk";
 
-  TemplateURL* template_url = new TemplateURL(data);
-  // Takes ownership of |template_url|.
-  template_url_service_->Add(template_url);
+  TemplateURL* template_url =
+      template_url_service_->Add(base::MakeUnique<TemplateURL>(data));
   template_url_service_->SetUserSelectedDefaultSearchProvider(template_url);
 }