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

ios/web/public/navigation_item.h

 // Copyright 2014 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 IOS_WEB_PUBLIC_NAVIGATION_ITEM_H_
 #define IOS_WEB_PUBLIC_NAVIGATION_ITEM_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/supports_user_data.h"
@@ skipping 53 matching lines @@
   virtual void SetTitle(const base::string16& title) = 0;
   virtual const base::string16& GetTitle() const = 0;
 
   // Stores the NavigationItem's last recorded scroll offset and zoom scale.
   virtual void SetPageDisplayState(const PageDisplayState& page_state) = 0;
   virtual const PageDisplayState& GetPageDisplayState() const = 0;
 
   // Page-related helpers ------------------------------------------------------
 
   // Returns the title to be displayed on the tab. This could be the title of
-  // the page if it is available or the URL. |languages| is the list of
-  // accepted languages (e.g., prefs::kAcceptLanguages) or empty if proper
-  // URL formatting isn't needed (e.g., unit tests).
-  virtual const base::string16& GetTitleForDisplay(
-      const std::string& languages) const = 0;
+  // the page if it is available or the URL.
+  virtual const base::string16& GetTitleForDisplay() const = 0;
 
   // Tracking stuff ------------------------------------------------------------
 
   // The transition type indicates what the user did to move to this page from
   // the previous page.
   virtual void SetTransitionType(ui::PageTransition transition_type) = 0;
   virtual ui::PageTransition GetTransitionType() const = 0;
 
   // The favicon data and tracking information. See web::FaviconStatus.
   virtual const FaviconStatus& GetFavicon() const = 0;
@@ skipping 33 matching lines @@
   virtual NSDictionary* GetHttpRequestHeaders() const = 0;
 
   // Adds headers from |additional_headers| to the item's http request headers.
   // Existing headers with the same key will be overridden.
   virtual void AddHttpRequestHeaders(NSDictionary* additional_headers) = 0;
 };
 
 }  // namespace web
 
 #endif  // IOS_WEB_PUBLIC_NAVIGATION_ITEM_H_