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

ios/chrome/browser/ui/webui/history/browsing_history_handler.h

Index: ios/chrome/browser/ui/webui/history/browsing_history_handler.h
diff --git a/ios/chrome/browser/ui/webui/history/browsing_history_handler.h b/ios/chrome/browser/ui/webui/history/browsing_history_handler.h
index 51848ec1205c820abd5d8fa37f50af4b49a4c8e8..1a6254ca9b1a3d26f85f2fc5f5fa22e1273f2d31 100644
--- a/ios/chrome/browser/ui/webui/history/browsing_history_handler.h
+++ b/ios/chrome/browser/ui/webui/history/browsing_history_handler.h
@@ -60,8 +60,7 @@ class BrowsingHistoryHandler : public web::WebUIIOSMessageHandler,
                  const std::string& client_id,
                  bool is_search_result,
                  const base::string16& snippet,
-                 bool blocked_visit,
-                 const std::string& accept_languages);
+                 bool blocked_visit);
     HistoryEntry();
     virtual ~HistoryEntry();
 
@@ -102,9 +101,6 @@ class BrowsingHistoryHandler : public web::WebUIIOSMessageHandler,
 
     // Whether this entry was blocked when it was attempted.
     bool blocked_visit;
-
-    // kAcceptLanguages pref value.
-    std::string accept_languages;
   };
 
   BrowsingHistoryHandler();
@@ -178,9 +174,6 @@ class BrowsingHistoryHandler : public web::WebUIIOSMessageHandler,
   // Sets the query options for a monthly query, |offset| months ago.
   void SetQueryTimeInMonths(int offset, history::QueryOptions* options);
 
-  // kAcceptLanguages pref value.
-  std::string GetAcceptLanguages() const;
-
   // history::HistoryServiceObserver:
   void OnURLsDeleted(history::HistoryService* history_service,
                      bool all_history,