Update NSS libSSL to NSS_3_15_BETA2.

net/third_party/nss/ssl/ssl3gthr.c

 /*
  * Gather (Read) entire SSL3 records from socket into buffer.  
  *
  * 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: ssl3gthr.c,v 1.14 2012/04/25 14:50:12 gerv%gerv.net Exp $ */
+/* $Id$ */
 
 #include "cert.h"
 #include "ssl.h"
 #include "sslimpl.h"
 #include "ssl3prot.h"
 
 /* 
  * Attempt to read in an entire SSL3 record.
  * Blocks here for blocking sockets, otherwise returns -1 with 
  *      PR_WOULD_BLOCK_ERROR when socket would block.
@@ skipping 381 matching lines @@
 {
     int            rv;
 
     PORT_Assert( ss->opt.noLocks || ssl_HaveRecvBufLock(ss) );
     do {
         rv = ssl3_GatherCompleteHandshake(ss, flags);
     } while (rv > 0 && ss->gs.buf.len == 0);
 
     return rv;
 }