Remove use of stl_util in search_engines.

components/omnibox/browser/shortcuts_backend_unittest.cc

Index: components/omnibox/browser/shortcuts_backend_unittest.cc
diff --git a/components/omnibox/browser/shortcuts_backend_unittest.cc b/components/omnibox/browser/shortcuts_backend_unittest.cc
index 2cd6235e40977bf61874e3b1cb5871f77b92748b..bbeae7970206592654e627d0e3a2c560e80e1041 100644
--- a/components/omnibox/browser/shortcuts_backend_unittest.cc
+++ b/components/omnibox/browser/shortcuts_backend_unittest.cc
@@ -104,9 +104,8 @@ void ShortcutsBackendTest::SetSearchProvider() {
   data.SetShortName(base::UTF8ToUTF16("foo"));
   data.SetKeyword(base::UTF8ToUTF16("foo"));
 
-  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);
 }