Ensure the patched NSS libssl used on Win and Mac behaves the same as upstream when handling client…

net/third_party/nss/ssl/ssl.h

 /*
  * This file contains prototypes for the public SSL functions.
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /* $Id: ssl.h,v 1.59 2012/09/21 21:58:43 wtc%google.com Exp $ */
 
 #ifndef __ssl_h_
 #define __ssl_h_
@@ skipping 523 matching lines @@
                                 PRFileDesc *fd,
                                 CERTDistNames *caNames,
                                 CERTCertList **pRetCerts,/*return */
                                 void **pRetKey,/* return */
                                 CERTCertificate **pRetNSSCert,/*return */
                                 SECKEYPrivateKey **pRetNSSKey);/* return */
 
 /*
  * Set the client side callback for SSL to retrieve user's private key
  * and certificate.
+ * Note: If a platform client auth callback is set, the callback configured by
+ * SSL_GetClientAuthDataHook, if any, will not be called.
+ *
  *      fd - the file descriptor for the connection in question
  *      f - the application's callback that delivers the key and cert
  *      a - application specific data
  */
 SSL_IMPORT SECStatus
 SSL_GetPlatformClientAuthDataHook(PRFileDesc *fd,
                                   SSLGetPlatformClientAuthData f, void *a);
 
 /*
 ** SNI extension processing callback function.
@@ skipping 513 matching lines @@
  * should continue using the connection. If the application passes a non-zero
  * value for second argument (error), or if SSL_AuthCertificateComplete returns
  * anything other than SECSuccess, then the application should close the
  * connection.
  */
 SSL_IMPORT SECStatus SSL_AuthCertificateComplete(PRFileDesc *fd,
                                                  PRErrorCode error);
 SEC_END_PROTOS
 
 #endif /* __ssl_h_ */