Update net/third_party/nss to NSS_3_15_5_BETA2.

net/third_party/nss/patches/tls12chromium.patch

 diff -pu a/nss/lib/ssl/ssl3con.c b/nss/lib/ssl/ssl3con.c
---- a/nss/lib/ssl/ssl3con.c     2014-01-03 18:55:44.659133336 -0800
-+++ b/nss/lib/ssl/ssl3con.c     2014-01-03 18:57:20.390695317 -0800
+--- a/nss/lib/ssl/ssl3con.c     2014-01-17 18:00:11.213237373 -0800
++++ b/nss/lib/ssl/ssl3con.c     2014-01-17 18:04:22.497405273 -0800
 @@ -31,6 +31,15 @@
  #include "blapi.h"
  #endif
  
 +/* This is a bodge to allow this code to be compiled against older NSS headers
 + * that don't contain the TLS 1.2 changes. */
 +#ifndef CKM_NSS_TLS_PRF_GENERAL_SHA256
 +#define CKM_NSS_TLS_PRF_GENERAL_SHA256          (CKM_NSS + 21)
 +#define CKM_NSS_TLS_MASTER_KEY_DERIVE_SHA256    (CKM_NSS + 22)
 +#define CKM_NSS_TLS_KEY_AND_MAC_DERIVE_SHA256   (CKM_NSS + 23)
 +#define CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256 (CKM_NSS + 24)
 +#endif
 +
  #include <stdio.h>
  #ifdef NSS_ENABLE_ZLIB
  #include "zlib.h"
 diff -pu a/nss/lib/ssl/ssl3ecc.c b/nss/lib/ssl/ssl3ecc.c
---- a/nss/lib/ssl/ssl3ecc.c     2014-01-03 18:56:43.300090124 -0800
-+++ b/nss/lib/ssl/ssl3ecc.c     2014-01-03 18:57:20.390695317 -0800
+--- a/nss/lib/ssl/ssl3ecc.c     2014-01-17 18:01:31.474568608 -0800
++++ b/nss/lib/ssl/ssl3ecc.c     2014-01-17 18:04:22.497405273 -0800
 @@ -30,6 +30,12 @@
  
  #include <stdio.h>
  
 +/* This is a bodge to allow this code to be compiled against older NSS headers
 + * that don't contain the TLS 1.2 changes. */
 +#ifndef CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256
 +#define CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256 (CKM_NSS + 24)
 +#endif
 +
  #ifdef NSS_ENABLE_ECC
  
  #ifndef PK11_SETATTRS
 diff -pu a/nss/lib/ssl/sslsock.c b/nss/lib/ssl/sslsock.c
---- a/nss/lib/ssl/sslsock.c     2014-01-03 18:55:44.669133500 -0800
-+++ b/nss/lib/ssl/sslsock.c     2014-01-03 18:57:20.400695477 -0800
+--- a/nss/lib/ssl/sslsock.c     2014-01-17 18:00:11.213237373 -0800
++++ b/nss/lib/ssl/sslsock.c     2014-01-17 18:04:22.497405273 -0800
 @@ -17,8 +17,15 @@
  #ifndef NO_PKCS11_BYPASS
  #include "blapi.h"
  #endif
 +#include "pk11pub.h"
  #include "nss.h"
  
 +/* This is a bodge to allow this code to be compiled against older NSS headers
 + * that don't contain the TLS 1.2 changes. */
 +#ifndef CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256
 +#define CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256 (CKM_NSS + 24)
 +#endif
 +
  #define SET_ERROR_CODE   /* reminder */
  
  static const sslSocketOps ssl_default_ops = {  /* No SSL. */
-@@ -1814,6 +1821,24 @@ SSL_VersionRangeGet(PRFileDesc *fd, SSLV
+@@ -1836,6 +1843,24 @@ SSL_VersionRangeGet(PRFileDesc *fd, SSLV
      return SECSuccess;
  }
  
 +static PRCallOnceType checkTLS12TokenOnce;
 +static PRBool tls12TokenExists;
 +
 +static PRStatus  
 +ssl_CheckTLS12Token(void)
 +{
 +    tls12TokenExists =
 +       PK11_TokenExists(CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256);
 +    return PR_SUCCESS;
 +}
 +
 +static PRBool
 +ssl_TLS12TokenExists(void)
 +{
 +    (void) PR_CallOnce(&checkTLS12TokenOnce, ssl_CheckTLS12Token);
 +    return tls12TokenExists;
 +}
 +
  SECStatus
  SSL_VersionRangeSet(PRFileDesc *fd, const SSLVersionRange *vrange)
  {
-@@ -1834,6 +1859,20 @@ SSL_VersionRangeSet(PRFileDesc *fd, cons
+@@ -1856,6 +1881,20 @@ SSL_VersionRangeSet(PRFileDesc *fd, cons
      ssl_GetSSL3HandshakeLock(ss);
  
      ss->vrange = *vrange;
 +    /* If we don't have a sufficiently up-to-date softoken then we cannot do
 +     * TLS 1.2. */
 +    if (ss->vrange.max >= SSL_LIBRARY_VERSION_TLS_1_2 &&
 +        !ssl_TLS12TokenExists()) {
 +       /* If the user requested a minimum version of 1.2, then we don't
 +        * silently downgrade. */
 +       if (ss->vrange.min >= SSL_LIBRARY_VERSION_TLS_1_2) {
 +           ssl_ReleaseSSL3HandshakeLock(ss);
 +           ssl_Release1stHandshakeLock(ss);
 +           PORT_SetError(SSL_ERROR_INVALID_VERSION_RANGE);
 +           return SECFailure;
 +       }
 +       ss->vrange.max = SSL_LIBRARY_VERSION_TLS_1_1;
 +    }
  
      ssl_ReleaseSSL3HandshakeLock(ss);
      ssl_Release1stHandshakeLock(ss);