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

chrome/test/base/ui_test_utils.cc

Index: chrome/test/base/ui_test_utils.cc
diff --git a/chrome/test/base/ui_test_utils.cc b/chrome/test/base/ui_test_utils.cc
index 094e311bdb44877c15d997bfcecaf5fb0121effb..64a8fffdb9d0303947079071e5f6455bfe8a8d6b 100644
--- a/chrome/test/base/ui_test_utils.cc
+++ b/chrome/test/base/ui_test_utils.cc
@@ -142,7 +142,7 @@ bool GetCurrentTabTitle(const Browser* browser, base::string16* title) {
   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;
 }