PKI library Mac trust store integration

net/BUILD.gn

Index: net/BUILD.gn
diff --git a/net/BUILD.gn b/net/BUILD.gn
index 8c4009f16395a33d3d4d1a8e9becee9d7bfafd78..64b9864a856a19198fef46fa442281156053fa47 100644
--- a/net/BUILD.gn
+++ b/net/BUILD.gn
@@ -545,6 +545,8 @@ component("net") {
       "cert/ev_root_ca_metadata.h",
       "cert/internal/cert_issuer_source_nss.cc",
       "cert/internal/cert_issuer_source_nss.h",
+      "cert/internal/trust_store_mac.cc",
+      "cert/internal/trust_store_mac.h",
       "cert/internal/trust_store_nss.cc",
       "cert/internal/trust_store_nss.h",
       "cert/jwk_serializer.cc",
@@ -4119,6 +4121,7 @@ test("net_unittests") {
     "cert/internal/test_helpers.cc",
     "cert/internal/test_helpers.h",
     "cert/internal/trust_store_collection_unittest.cc",
+    "cert/internal/trust_store_mac_unittest.cc",
     "cert/internal/trust_store_nss_unittest.cc",
     "cert/internal/verify_certificate_chain_pkits_unittest.cc",
     "cert/internal/verify_certificate_chain_typed_unittest.h",