Propagate the remote socket address to URLRequest and to ViewHostMsg_FrameNavigate.

net/ftp/ftp_response_info.h

 // Copyright (c) 2010 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 NET_FTP_FTP_RESPONSE_INFO_H_
 #define NET_FTP_FTP_RESPONSE_INFO_H_
 #pragma once
 
+#include <string>
+
 #include "base/time.h"
 
 namespace net {
 
 class FtpResponseInfo {
  public:
   FtpResponseInfo()
       : needs_auth(false),
         expected_content_size(-1),
         is_directory_listing(false) {
@@ skipping 10 matching lines @@
   // The time at which the response headers were received.  For cached
   // responses, this time could be "far" in the past.
   base::Time response_time;
 
   // Expected content size, in bytes, as reported by SIZE command. Only valid
   // for file downloads. -1 means unknown size.
   int64 expected_content_size;
 
   // True if the response data is of a directory listing.
   bool is_directory_listing;
+
+  // Remote address of the socket which fetched this resource, for presenting
+  // to inquisitive users.  Can be "ipv4:port", "[ipv6]:port", or empty.
+  std::string socket_address;
 };
 
 }  // namespace net
 
 #endif  // NET_FTP_FTP_RESPONSE_INFO_H_