Use suffixed {uint,int}{8,16,32,64}_t types.

talk/session/media/externalhmac.h

 /*
  * libjingle
  * Copyright 2014 Google Inc.
  *
  * 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.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 44 matching lines @@
 #endif  // SRTP_RELATIVE_PATH
 }
 
 #define EXTERNAL_HMAC_SHA1 HMAC_SHA1 + 1
 #define HMAC_KEY_LENGTH 20
 
 // The HMAC context structure used to store authentication keys.
 // The pointer to the key  will be allocated in the external_hmac_init function.
 // This pointer is owned by srtp_t in a template context.
 typedef struct {
-  uint8 key[HMAC_KEY_LENGTH];
+  uint8_t key[HMAC_KEY_LENGTH];
   int key_length;
 } ExternalHmacContext;
 
 err_status_t external_hmac_alloc(auth_t** a, int key_len, int out_len);
 
 err_status_t external_hmac_dealloc(auth_t* a);
 
 err_status_t external_hmac_init(ExternalHmacContext* state,
                                 const uint8_t* key,
                                 int key_len);
 
 err_status_t external_hmac_start(ExternalHmacContext* state);
 
 err_status_t external_hmac_update(ExternalHmacContext* state,
                                   const uint8_t* message,
                                   int msg_octets);
 
 err_status_t external_hmac_compute(ExternalHmacContext* state,
                                    const void* message,
                                    int msg_octets,
                                    int tag_len,
                                    uint8_t* result);
 
 err_status_t external_crypto_init();
 
 #endif  // defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH)
 #endif  // TALK_SESSION_MEDIA_EXTERNAL_HMAC_H_