message: Fix uses of private, mangled names for proto enumerators.
diff: @@ -89,8 +89,7 @@ util::Status ValidateKeyset(const Keyset& keyset) {
  has_primary_key = true;
  }
  - if (key.key_data().key_material_type() !=
  - KeyData::KeyMaterialType::KeyData_KeyMaterialType_ASYMMETRIC_PUBLIC) {
  + if (key.key_data().key_material_type() != KeyData::ASYMMETRIC_PUBLIC) {
  contains_only_public_key_material = false;
  }
  }
  