Drop |languages| from {Format,Elide}Url* and IDNToUnicode

chrome/test/base/ui_test_utils.cc

 // Copyright (c) 2012 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 "chrome/test/base/ui_test_utils.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 124 matching lines @@
 }  // namespace
 
 bool GetCurrentTabTitle(const Browser* browser, base::string16* title) {
   WebContents* web_contents =
       browser->tab_strip_model()->GetActiveWebContents();
   if (!web_contents)
     return false;
   NavigationEntry* last_entry = web_contents->GetController().GetActiveEntry();
   if (!last_entry)
     return false;
-  title->assign(last_entry->GetTitleForDisplay(std::string()));
+  title->assign(last_entry->GetTitleForDisplay());
   return true;
 }
 
 void NavigateToURL(chrome::NavigateParams* params) {
   chrome::Navigate(params);
   content::WaitForLoadStop(params->target_contents);
 }
 
 void NavigateToURLWithPost(Browser* browser, const GURL& url) {
   chrome::NavigateParams params(browser, url,
@@ skipping 373 matching lines @@
         new content::MessageLoopRunner;
     WaitHistoryLoadedObserver observer(runner.get());
     ScopedObserver<history::HistoryService, history::HistoryServiceObserver>
         scoped_observer(&observer);
     scoped_observer.Add(history_service);
     runner->Run();
   }
 }
 
 }  // namespace ui_test_utils