third_party/openssl: add ChaCha20+Poly1305 support.

openssl/ssl/ssl3.h

 /* ssl/ssl3.h */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
  * 
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
@@ skipping 499 matching lines @@
                 int ctype_num;
                 char ctype[SSL3_CT_NUMBER];
                 STACK_OF(X509_NAME) *ca_names;
 
                 int use_rsa_tmp;
 
                 int key_block_length;
                 unsigned char *key_block;
 
                 const EVP_CIPHER *new_sym_enc;
+                const EVP_AEAD *new_aead;
                 const EVP_MD *new_hash;
                 int new_mac_pkey_type;
                 int new_mac_secret_size;
 #ifndef OPENSSL_NO_COMP
                 const SSL_COMP *new_compression;
 #else
                 char *new_compression;
 #endif
                 int cert_request;
                 } tmp;
@@ skipping 163 matching lines @@
 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)  
 #define SSL3_CHANGE_CIPHER_SERVER_READ  (SSL3_CC_SERVER|SSL3_CC_READ)
 #define SSL3_CHANGE_CIPHER_CLIENT_READ  (SSL3_CC_CLIENT|SSL3_CC_READ)
 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
 
 #ifdef  __cplusplus
 }
 #endif
 #endif