Update NSS libSSL to NSS_3_15_BETA2.

net/third_party/nss/patches/secitemarray.patch

+diff -pu a/nss/lib/ssl/sslimpl.h b/nss/lib/ssl/sslimpl.h
+--- a/nss/lib/ssl/sslimpl.h     2013-05-01 14:37:42.983095831 -0700
++++ b/nss/lib/ssl/sslimpl.h     2013-05-01 14:43:06.447667082 -0700
+@@ -1258,6 +1258,15 @@ extern sslSessionIDUncacheFunc ssl_sid_u
+ 
+ SEC_BEGIN_PROTOS
+ 
++/* Functions for handling SECItemArrays, added in NSS 3.15 */
++extern SECItemArray *SECITEM_AllocArray(PLArenaPool *arena,
++                                        SECItemArray *array,
++                                        unsigned int len);
++extern SECItemArray *SECITEM_DupArray(PLArenaPool *arena,
++                                      const SECItemArray *from);
++extern void SECITEM_FreeArray(SECItemArray *array, PRBool freeit);
++extern void SECITEM_ZfreeArray(SECItemArray *array, PRBool freeit);
++
+ /* Internal initialization and installation of the SSL error tables */
+ extern SECStatus ssl_Init(void);
+ extern SECStatus ssl_InitializePRErrorTable(void);
+diff -pu a/nss/lib/ssl/sslt.h b/nss/lib/ssl/sslt.h
+--- a/nss/lib/ssl/sslt.h        2013-05-01 14:37:42.983095831 -0700
++++ b/nss/lib/ssl/sslt.h        2013-05-01 14:43:06.447667082 -0700
+@@ -11,6 +11,19 @@
+ 
+ #include "prtypes.h"
+ 
++/* SECItemArray is added in NSS 3.15.  Define the type if compiling
++** against an older version of NSS.
++*/
++#include "nssutil.h"
++#if NSSUTIL_VMAJOR == 3 && NSSUTIL_VMINOR < 15
++typedef struct SECItemArrayStr SECItemArray;
++
++struct SECItemArrayStr {
++    SECItem *items;
++    unsigned int len;
++};
++#endif  /* NSSUTIL_VMAJOR == 3 && NSSUTIL_VMINOR < 15 */
++
+ typedef struct SSL3StatisticsStr {
+     /* statistics from ssl3_SendClientHello (sch) */
+     long sch_sid_cache_hits;