Add a check for server and CA certificates in device policies to the ONC validator.

chromeos/network/onc/onc_certificate_importer_unittest.cc

Index: chromeos/network/onc/onc_certificate_importer_unittest.cc
diff --git a/chromeos/network/onc/onc_certificate_importer_unittest.cc b/chromeos/network/onc/onc_certificate_importer_unittest.cc
index 736c3a9810d382725c93df2b10ca8a602b4e9296..d2b2aa3d9327df90deea323627e077d327f350b7 100644
--- a/chromeos/network/onc/onc_certificate_importer_unittest.cc
+++ b/chromeos/network/onc/onc_certificate_importer_unittest.cc
@@ -89,8 +89,7 @@ class ONCCertificateImporterTest : public testing::Test {
     certificates->GetDictionary(0, &certificate);
     certificate->GetStringWithoutPathExpansion(kGUID, guid);
 
-    CertificateImporter importer(ONC_SOURCE_USER_IMPORT,
-                                 false /* don't allow web trust */);
+    CertificateImporter importer(false /* don't allow web trust */);
     EXPECT_EQ(CertificateImporter::IMPORT_OK,
               importer.ParseAndStoreCertificates(*certificates));