Reland dd7edfa67: Switch Mac over to BoringSSL from NSS.

third_party/boringssl/boringssl.gypi

 # Copyright (c) 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file is created by update_gypi_and_asm.py. Do not edit manually.
 
 {
   'variables': {
     'boringssl_lib_sources': [
       'src/crypto/aes/aes.c',
@@ skipping 82 matching lines @@
       'src/crypto/cipher/e_aes.c',
       'src/crypto/cipher/e_chacha20poly1305.c',
       'src/crypto/cipher/e_des.c',
       'src/crypto/cipher/e_null.c',
       'src/crypto/cipher/e_rc2.c',
       'src/crypto/cipher/e_rc4.c',
       'src/crypto/conf/conf.c',
       'src/crypto/conf/conf_error.c',
       'src/crypto/cpu-arm.c',
       'src/crypto/cpu-intel.c',
+      'src/crypto/crypto.c',
       'src/crypto/crypto_error.c',
       'src/crypto/des/des.c',
       'src/crypto/dh/check.c',
       'src/crypto/dh/dh.c',
       'src/crypto/dh/dh_asn1.c',
       'src/crypto/dh/dh_error.c',
       'src/crypto/dh/dh_impl.c',
       'src/crypto/dh/params.c',
       'src/crypto/digest/digest.c',
       'src/crypto/digest/digest_error.c',
@@ skipping 298 matching lines @@
       'win-x86_64/crypto/modes/aesni-gcm-x86_64.asm',
       'win-x86_64/crypto/modes/ghash-x86_64.asm',
       'win-x86_64/crypto/rc4/rc4-md5-x86_64.asm',
       'win-x86_64/crypto/rc4/rc4-x86_64.asm',
       'win-x86_64/crypto/sha/sha1-x86_64.asm',
       'win-x86_64/crypto/sha/sha256-x86_64.asm',
       'win-x86_64/crypto/sha/sha512-x86_64.asm',
     ],
   }
 }