Show IDN in error screens (DNS failure etc.)

chrome/renderer/net/net_error_helper.h

 // Copyright (c) 2013 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 CHROME_RENDERER_NET_NET_ERROR_HELPER_H_
 #define CHROME_RENDERER_NET_NET_ERROR_HELPER_H_
 
 #include <string>
 
 #include "chrome/common/net/net_error_info.h"
@@ skipping 32 matching lines @@
   // Examines |frame| and |error| to see if this is an error worthy of a DNS
   // probe.  If it is, initializes |error_strings| based on |error|,
   // |is_failed_post|, and |locale| with suitable strings and returns true.
   // If not, returns false, in which case the caller should look up error
   // strings directly using LocalizedError::GetNavigationErrorStrings.
   static bool GetErrorStringsForDnsProbe(
       WebKit::WebFrame* frame,
       const WebKit::WebURLError& error,
       bool is_failed_post,
       const std::string& locale,
+      const std::string& accept_languages,
       base::DictionaryValue* error_strings);
 
  protected:
   // These methods handle tracking the actual state of the page; this allows
   // unit-testing of the state tracking without having to mock out WebFrames
   // and such.
   void OnStartLoad(bool is_main_frame, bool is_error_page);
   void OnFailLoad(bool is_main_frame, bool is_dns_error);
   void OnCommitLoad(bool is_main_frame);
   void OnFinishLoad(bool is_main_frame);
@@ skipping 29 matching lines @@
   // described above.
   bool forwarding_probe_results_;
 
   // The last main frame error seen by the helper.
   WebKit::WebURLError last_error_;
 
   bool is_failed_post_;
 };
 
 #endif  // CHROME_RENDERER_NET_NET_ERROR_HELPER_H_