Make chrome/common pass "gn check"

chrome/chrome_common.gypi

 # 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.
 
 {
   'variables': {
     # File lists shared with GN build.
     'chrome_common_sources': [
       'common/all_messages.h',
       'common/attrition_experiments.h',
@@ skipping 577 matching lines @@
         ['use_openssl_certs == 1 and OS != "android"', {
           'dependencies': [
             '<(DEPTH)/third_party/boringssl/boringssl.gyp:boringssl',
           ],
         }, {
           'sources!': [
             'common/net/x509_certificate_model_openssl.cc',
           ],
         }],
         ['use_nss_certs == 1', {
+          'sources': [
+            # GN version: //chrome/third_party/mozilla_security_manager
+            'third_party/mozilla_security_manager/nsNSSCertHelper.cpp',
+            'third_party/mozilla_security_manager/nsNSSCertHelper.h',
+            'third_party/mozilla_security_manager/nsNSSCertificate.cpp',
+            'third_party/mozilla_security_manager/nsNSSCertificate.h',
+            'third_party/mozilla_security_manager/nsUsageArrayHelper.cpp',
+            'third_party/mozilla_security_manager/nsUsageArrayHelper.h',
+          ],
           'dependencies': [
             '../build/linux/system.gyp:ssl',
           ],
         }, {
           'sources!': [
             'common/net/x509_certificate_model_nss.cc',
           ],
         }],
         ['OS=="win"', {
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
@@ skipping 30 matching lines @@
       'sources': [
         'common/resource_usage_reporter.mojom',
       ],
       'dependencies': [
         '../mojo/mojo_base.gyp:mojo_environment_chromium',
         '../third_party/mojo/mojo_public.gyp:mojo_cpp_bindings',
       ],
     },
   ],
 }