Add path validation error expectations for PKITS tests.

net/cert/internal/parsed_certificate_unittest.cc

Index: net/cert/internal/parsed_certificate_unittest.cc
diff --git a/net/cert/internal/parsed_certificate_unittest.cc b/net/cert/internal/parsed_certificate_unittest.cc
index fe4e5a66406521e96a95694e70e8741781285e66..3bd449985f23dedc42479bb92d6c78d65ece41e9 100644
--- a/net/cert/internal/parsed_certificate_unittest.cc
+++ b/net/cert/internal/parsed_certificate_unittest.cc
@@ -44,8 +44,7 @@ scoped_refptr<ParsedCertificate> ParseCertificateFromFile(
           reinterpret_cast<const uint8_t*>(data.data()), data.size(), nullptr)),
       options, &errors);
 
-  EXPECT_EQ(expected_errors, errors.ToDebugString()) << "Test file: "
-                                                     << test_file_path;
+  VerifyCertErrors(expected_errors, errors, test_file_path);
 
   // TODO(crbug.com/634443): Every parse failure being tested should emit error
   // information.