Implement SSL client authentication for Windows....

net/http/http_response_info.h

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// 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_
 
 #include "base/time.h"
 #include "net/base/auth.h"
 #include "net/base/ssl_info.h"
 #include "net/http/http_vary_data.h"
 
 namespace net {
 
 class HttpResponseHeaders;
+class SSLCertRequestInfo;
 
 class HttpResponseInfo {
  public:
   HttpResponseInfo();
   ~HttpResponseInfo();
   // Default copy-constructor and assignment operator are OK!
 
   // The following is only defined if the request_time member is set.
   // If this response was resurrected from cache, then this bool is set, and
   // request_time may corresponds to a time "far" in the past.  Note that
   // stale content (perhaps un-cacheable) may be fetched from cache subject to
   // the load flags specified on the request info.  For example, this is done
   // when a user presses the back button to re-render pages, or at startup, when
   // reloading previously visited pages (without going over the network).
   bool was_cached;
 
   // The time at which the request was made that resulted in this response.
   // For cached responses, this time could be "far" in the past.
   base::Time request_time;
 
   // The time at which the response headers were received.  For cached
   // responses, this time could be "far" in the past.
   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.
   scoped_refptr<AuthChallengeInfo> auth_challenge;
 
+  // The SSL client certificate request info.
+  // TODO(wtc): does this really belong in HttpResponseInfo?  I put it here
+  // because it is similar to |auth_challenge|, but unlike HTTP authentication
+  // challenge, client certificate request is not part of an HTTP response.
+  scoped_refptr<SSLCertRequestInfo> cert_request_info;
+
   // The SSL connection info (if HTTPS).
   SSLInfo ssl_info;
 
   // The parsed response headers and status line.
   scoped_refptr<HttpResponseHeaders> headers;
 
   // The "Vary" header data for this response.
   HttpVaryData vary_data;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_RESPONSE_INFO_H_