Propagate the remote socket address to URLRequest and to ViewHostMsg_FrameNavigate.

net/http/http_response_info.h

 // Copyright (c) 2006-2009 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_HTTP_HTTP_RESPONSE_INFO_H_
 #define NET_HTTP_HTTP_RESPONSE_INFO_H_
 #pragma once
 
 #include "base/time.h"
+#include "net/base/host_port_pair.h"
 #include "net/base/ssl_info.h"
 #include "net/http/http_vary_data.h"
 
 class Pickle;
 
 namespace net {
 
 class AuthChallengeInfo;
 class HttpResponseHeaders;
 class IOBufferWithSize;
@@ skipping 33 matching lines @@
 
   // True if response could use alternate protocol. However, browser
   // will ingore the alternate protocol if spdy is not enabled.
   bool was_alternate_protocol_available;
 
   // True if the request was fetched via an explicit proxy.  The proxy could
   // be any type of proxy, HTTP or SOCKS.  Note, we do not know if a
   // transparent proxy may have been involved.
   bool was_fetched_via_proxy;
 
+  // Remote address of the socket which fetched this resource.
+  //
+  // NOTE: If the response was served from the cache (was_cached is true),
+  // the socket address will be set to the address that the content came from
+  // originally.  This is true even if the response was re-validated using a
+  // different remote address, or if some of the content came from a byte-range
+  // request to a different address.
+  HostPortPair socket_address;
+
   // The time at which the request was made that resulted in this response.
   // For cached responses, this is the last time the cache entry was validated.
   base::Time request_time;
 
   // The time at which the response headers were received.  For cached
   // this is the last time the cache entry was validated.
   base::Time response_time;
 
   // If the response headers indicate a 401 or 407 failure, then this structure
   // will contain additional information about the authentication challenge.
@@ skipping 14 matching lines @@
   // The "Vary" header data for this response.
   HttpVaryData vary_data;
 
   // Any metadata asociated with this resource's cached data.
   scoped_refptr<IOBufferWithSize> metadata;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_RESPONSE_INFO_H_