Propagate the remote socket address to URLRequest and to ViewHostMsg_FrameNavigate.

net/http/http_response_info.h

Index: net/http/http_response_info.h
diff --git a/net/http/http_response_info.h b/net/http/http_response_info.h
index 4fbea3d4ad77cc2e12270c59a3f4349c6fc0b2c2..7086af244a131604b2f17a60d3b7dc88d20c0f7e 100644
--- a/net/http/http_response_info.h
+++ b/net/http/http_response_info.h
@@ -6,6 +6,8 @@
 #define NET_HTTP_HTTP_RESPONSE_INFO_H_
 #pragma once
 
+#include <string>
+
 #include "base/time.h"
 #include "net/base/ssl_info.h"
 #include "net/http/http_vary_data.h"
@@ -60,6 +62,16 @@ class HttpResponseInfo {
   // transparent proxy may have been involved.
   bool was_fetched_via_proxy;
 
+  // Remote address of the socket which fetched this resource.
+  // Can be "ipv4:port", "[ipv6]:port", or empty.
+  //
+  // 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.
+  std::string socket_address;

[eroman, 2011/02/16 21:41:13]

Please use a HostPortPair instead, and avoid describing the formatting rules
here. (Leave the formatting decisions to caller).

+
   // 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;