Add TLS_{client,server}_method.

Inch towards OpenSSL 1.1.0 compatibility.

BUG=91

Change-Id: Ia45b6bdb5114d0891fdffdef0b5868920324ecec
Reviewed-on: https://boringssl-review.googlesource.com/9140
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/include/openssl/ssl.h b/include/openssl/ssl.h
index d9c8bf6..fcceb89 100644
--- a/include/openssl/ssl.h
+++ b/include/openssl/ssl.h
@@ -3162,6 +3162,8 @@
 
 /* These client- and server-specific methods call their corresponding generic
  * methods. */
+OPENSSL_EXPORT const SSL_METHOD *TLS_server_method(void);
+OPENSSL_EXPORT const SSL_METHOD *TLS_client_method(void);
 OPENSSL_EXPORT const SSL_METHOD *SSLv23_server_method(void);
 OPENSSL_EXPORT const SSL_METHOD *SSLv23_client_method(void);
 OPENSSL_EXPORT const SSL_METHOD *SSLv3_server_method(void);