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

components/security_interstitials/core/common_string_util.h

 // Copyright 2015 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.
 
 #ifndef COMPONENTS_SECURITY_INTERSTITIALS_CORE_COMMON_STRING_UTIL_H_
 #define COMPONENTS_SECURITY_INTERSTITIALS_CORE_COMMON_STRING_UTIL_H_
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "net/ssl/ssl_info.h"
 #include "url/gurl.h"
 
 namespace security_interstitials {
 
 // This namespace contains shared functionality for manipulating the strings
 // and string resources in security error pages.
 namespace common_string_util {
 
 // Returns the |gurl| as a URL appropriate for display in an error page.
-base::string16 GetFormattedHostName(const GURL& gurl,
-                                    const std::string& languages);
+base::string16 GetFormattedHostName(const GURL& gurl);
 
 // For SSL-related errors that share a basic structure.
 void PopulateSSLLayoutStrings(int cert_error,
                               base::DictionaryValue* load_time_data);
 
 // For SSL-related errors that provide debugging information.
 void PopulateSSLDebuggingStrings(const net::SSLInfo ssl_info,
                                  const base::Time time_triggered,
                                  base::DictionaryValue* load_time_data);
 
 }  // common_string_util
 
 }  // namespace security_interstitials
 
 #endif  // COMPONENTS_SECURITY_INTERSTITIALS_CORE_COMMON_STRING_UTIL_H_