third_party/openssl: add ChaCha20+Poly1305 support.

openssl/crypto/crypto.h

 /* crypto/crypto.h */
 /* ====================================================================
  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer. 
@@ skipping 396 matching lines @@
 /* Get/set data in a CRYPTO_EX_DATA variable corresponding to a particular index
  * (relative to the class type involved) */
 int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val);
 void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad,int idx);
 /* This function cleans up all "ex_data" state. It mustn't be called under
  * potential race-conditions. */
 void CRYPTO_cleanup_all_ex_data(void);
 
 int CRYPTO_get_new_lockid(char *name);
 
+/* CRYPTO_set_NEON_capable enables any NEON (ARM vector) dependent code. This
+ * code should be called before any non-init functions. */
+void CRYPTO_set_NEON_capable(int on);
+
+/* CRYPTO_is_NEON_capable returns the last value given to
+ * CRYPTO_set_NEON_capable, or else zero if it has never been called. */
+int CRYPTO_is_NEON_capable();
+
 int CRYPTO_num_locks(void); /* return CRYPTO_NUM_LOCKS (shared libs!) */
 void CRYPTO_lock(int mode, int type,const char *file,int line);
 void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
                                               const char *file,int line));
 void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file,
                 int line);
 void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type,
                                               const char *file, int line));
 int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type,
                                           const char *file,int line);
@@ skipping 175 matching lines @@
 #define CRYPTO_F_INT_NEW_EX_DATA                         108
 
 /* Reason codes. */
 #define CRYPTO_R_FIPS_MODE_NOT_SUPPORTED                 101
 #define CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK              100
 
 #ifdef  __cplusplus
 }
 #endif
 #endif