Added a PolicyCertVerifier that uses the trust anchors from the ONC policies.

chromeos/test/data/network/certificate-authority.onc

Index: chromeos/test/data/network/certificate-authority.onc
diff --git a/chromeos/test/data/network/certificate-web-authority.onc b/chromeos/test/data/network/certificate-authority.onc
similarity index 97%
copy from chromeos/test/data/network/certificate-web-authority.onc
copy to chromeos/test/data/network/certificate-authority.onc
index 81e316defaa98c926145a6e99f3481cb8f0c22ce..35622506ca2bc5c25770fb4a8d79411a2d7d9499 100644
--- a/chromeos/test/data/network/certificate-web-authority.onc
+++ b/chromeos/test/data/network/certificate-authority.onc
@@ -2,13 +2,10 @@
   "Certificates": [
     {
       "GUID": "{f998f760-272b-6939-4c2beffe428697ab}",
-      "Trust": [
-        "Web"
-      ],
       "Type": "Authority",
       "X509": "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"
     }
   ],
   "NetworkConfigurations": [],
   "Type": "UnencryptedConfiguration"
-}
+}