Don't build x509_certificate_model_unittest.cc on Windows and Mac.

chrome/chrome_tests_unit.gypi

 # Copyright 2012 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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 2719 matching lines @@
             '../ui/views/views.gyp:views',
             '../ui/views/views.gyp:views_test_support',
           ],
         }, { # else: toolkit_views == 0
           'sources/': [
             ['exclude', '^browser/ui/views/'],
             ['exclude', '^../apps/ui/views/'],
             ['exclude', '^../ui/views/'],
           ],
         }],
-        ['use_nss==0 and use_openssl==0', {
+        ['use_nss==0 and use_openssl_certs==0', {
           'sources!': [
             'common/net/x509_certificate_model_unittest.cc',
           ],
         }],
         ['use_openssl==1', {
           'sources!': [
             # networking_private_crypto.cc uses NSS functions.
             'common/extensions/api/networking_private/networking_private_crypto_unittest.cc',
           ],
           'sources/': [
@@ skipping 175 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }