GN build improvements.

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 194 matching lines @@
     "random_unittest.cc",
     "rsa_private_key_unittest.cc",
     "rsa_private_key_nss_unittest.cc",
     "secure_hash_unittest.cc",
     "sha2_unittest.cc",
     "signature_creator_unittest.cc",
     "signature_verifier_unittest.cc",
     "symmetric_key_unittest.cc",
   ]
 
-  if (use_openssl) {
-    sources -= [
-      "nss_util_unittest.cc",
-    ]
-  }
-
   if (use_openssl || !is_linux) {
     sources -= [
       "rsa_private_key_nss_unittest.cc",
     ]
   }
 
   if (use_openssl) {
     sources -= [ "nss_util_unittest.cc" ]
   }
 
@@ skipping 32 matching lines @@
       ]
     } else {
       # Non-Linux platforms use the hermetic NSS from the tree.
       deps += [
         "//third_party/nss:nspr",
         "//third_party/nss:nss",
       ]
     }
   }
 }