Remove dependence on a message loop for net::PathBuilder.

net/net.gypi

 # Copyright 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 shared between the regular GYP build, the NaCl GYP build, and
 # the GN build. For GN support, it must have no conditionals or anything like
 # that beyond the simple one-level-deep dictionary of values.
 {
   'variables': {
     # Subset of net source files that are compiled for NaCl (net_nacl target).
@@ skipping 1482 matching lines @@
       'cert/internal/parse_name_unittest.cc',
       'cert/internal/parse_ocsp_unittest.cc',
       'cert/internal/path_builder_pkits_unittest.cc',
       'cert/internal/path_builder_unittest.cc',
       'cert/internal/path_builder_verify_certificate_chain_unittest.cc',
       'cert/internal/signature_algorithm_unittest.cc',
       'cert/internal/test_helpers.cc',
       'cert/internal/test_helpers.h',
       'cert/internal/trust_store_collection_unittest.cc',
       'cert/internal/trust_store_nss_unittest.cc',
-      'cert/internal/trust_store_test_helpers.cc',
-      'cert/internal/trust_store_test_helpers.h',
       'cert/internal/verify_certificate_chain_pkits_unittest.cc',
       'cert/internal/verify_certificate_chain_typed_unittest.h',
       'cert/internal/verify_certificate_chain_unittest.cc',
       'cert/internal/verify_name_match_unittest.cc',
       'cert/internal/verify_signed_data_unittest.cc',
       'cert/jwk_serializer_unittest.cc',
       'cert/merkle_audit_proof_unittest.cc',
       'cert/merkle_tree_leaf_unittest.cc',
       'cert/multi_log_ct_verifier_unittest.cc',
       'cert/multi_threaded_cert_verifier_unittest.cc',
@@ skipping 1821 matching lines @@
       'third_party/nist-pkits/crls/requireExplicitPolicy5subCACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy5subsubCACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy5subsubsubCACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7CACRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7subCARE2CRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7subsubCARE2RE4CRL.crl',
       'third_party/nist-pkits/crls/requireExplicitPolicy7subsubsubCARE2RE4CRL.crl',
     ],
   }
 }