Work on Mac GN build

crypto/BUILD.gn

 # Copyright (c) 2013 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.
 
 import("//build/config/crypto.gni")
 
 component("crypto") {
   output_name = "crcrypto"  # Avoid colliding with OpenSSL's libcrypto.
   sources = [
     "apple_keychain.h",
@@ skipping 88 matching lines @@
   ]
 
   if (!is_mac && !is_ios) {
     sources -= [
       "apple_keychain.h",
       "mock_apple_keychain.cc",
       "mock_apple_keychain.h",
     ]
   }
 
-  if (!is_linux) {
+  if (use_openssl || !is_linux) {
     sources -= [
       "openpgp_symmetric_encryption.cc",
       "openpgp_symmetric_encryption.h",
     ]
-    if (use_nss) {  # Removed for non-NSS in all cases below.
-      sources -= [
-        "openpgp_symmetric_encryption.cc",
-        "openpgp_symmetric_encryption.h",
-      ]
-    }
   }
   if (!is_mac) {
     sources -= [
       "cssm_init.cc",
       "cssm_init.h",
       "mac_security_services_lock.cc",
       "mac_security_services_lock.h",
     ]
   }
   if (!is_win) {
     sources -= [
       "capi_util.cc",
       "capi_util.h",
     ]
   }
 
-  if (!use_nss) {
+  if (use_openssl) {
+    # Remove NSS files when using OpenSSL
     sources -= [
       "ec_private_key_nss.cc",
       "ec_signature_creator_nss.cc",
       "encryptor_nss.cc",
       "hmac_nss.cc",
       "nss_util.cc",
       "nss_util.h",
       "rsa_private_key_nss.cc",
       "secure_hash_default.cc",
       "signature_creator_nss.cc",
       "signature_verifier_nss.cc",
       "symmetric_key_nss.cc",
       "third_party/nss/chromium-blapi.h",
       "third_party/nss/chromium-blapit.h",
       "third_party/nss/chromium-nss.h",
       "third_party/nss/pk11akey.cc",
       "third_party/nss/rsawrapr.c",
       "third_party/nss/secsign.cc",
     ]
-  }
-  if (!use_openssl) {
+  } else {
+    # Remove OpenSSL when using NSS.
     sources -= [
       "ec_private_key_openssl.cc",
       "ec_signature_creator_openssl.cc",
       "encryptor_openssl.cc",
       "hmac_openssl.cc",
       "openssl_util.cc",
       "openssl_util.h",
       "rsa_private_key_openssl.cc",
       "secure_hash_openssl.cc",
       "signature_creator_openssl.cc",
@@ skipping 109 matching lines @@
       ]
     } else {
       # Non-Linux platforms use the hermetic NSS from the tree.
       deps += [
         "//third_party/nss:nspr",
         "//third_party/nss:nss",
       ]
     }
   }
 }