Don't treat trust anchors as certificates during path building.

components/cast_certificate/cast_cert_validator.cc

Index: components/cast_certificate/cast_cert_validator.cc
diff --git a/components/cast_certificate/cast_cert_validator.cc b/components/cast_certificate/cast_cert_validator.cc
index 9dcff2fe63f99412671f756366a8591e34027614..3e9bb222a2663bc9fb0fc8a33098d4826faaa013 100644
--- a/components/cast_certificate/cast_cert_validator.cc
+++ b/components/cast_certificate/cast_cert_validator.cc
@@ -67,12 +67,16 @@ class CastTrustStore {
   // storage.
   template <size_t N>
   void AddAnchor(const uint8_t (&data)[N]) {
-    scoped_refptr<net::ParsedCertificate> root =
+    scoped_refptr<net::ParsedCertificate> cert =
         net::ParsedCertificate::CreateFromCertificateData(
             data, N, net::ParsedCertificate::DataSource::EXTERNAL_REFERENCE,
             {});
-    CHECK(root);
-    store_.AddTrustedCertificate(std::move(root));
+    CHECK(cert);
+    // TODO(crbug.com/635200): Support anchor constraints, and initialize the
+    // anchor using constraints from the self-signed certificate.
+    scoped_refptr<net::TrustAnchor> anchor =
+        net::TrustAnchor::CreateFromCertificateNoConstraints(std::move(cert));
+    store_.AddTrustAnchor(std::move(anchor));
   }
 
   net::TrustStore store_;