Implement SSL client authentication for Windows....

net/url_request/url_request_job.h

Index: net/url_request/url_request_job.h
===================================================================
--- net/url_request/url_request_job.h	(revision 18321)
+++ net/url_request/url_request_job.h	(working copy)
@@ -1,4 +1,4 @@
-// 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.
 
@@ -19,6 +19,7 @@
 class HttpResponseInfo;
 class IOBuffer;
 class UploadData;
+class X509Certificate;
 }
 
 class GURL;
@@ -176,6 +177,8 @@
   // Display the error page without asking for credentials again.
   virtual void CancelAuth();
 
+  virtual void ContinueWithCertificate(net::X509Certificate* client_cert);
+
   // Continue processing the request ignoring the last error.
   virtual void ContinueDespiteLastError();