Add initial CertVerifyProcBuiltin.

net/cert/internal/signature_policy.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_CERT_INTERNAL_SIGNATURE_POLICY_H_
 #define NET_CERT_INTERNAL_SIGNATURE_POLICY_H_
 
 #include <stddef.h>
 
 #include "base/compiler_specific.h"
 #include "net/base/net_export.h"
+#include "net/cert/internal/cert_errors.h"
 #include "net/cert/internal/signature_algorithm.h"
 
 namespace net {
 
 class CertErrors;
 class SignatureAlgorithm;
 
 // SignaturePolicy is an interface (and base implementation) for applying
 // policies when verifying signed data. It lets callers override which
 // algorithms, named curves, and key sizes to allow.
@@ skipping 32 matching lines @@
  public:
   explicit SimpleSignaturePolicy(size_t min_rsa_modulus_length_bits);
 
   bool IsAcceptableModulusLengthForRsa(size_t modulus_length_bits,
                                        CertErrors* errors) const override;
 
  private:
   const size_t min_rsa_modulus_length_bits_;
 };
 
+// TODO(crbug.com/634443): Move exported errors to a central location?
+extern CertErrorId kRsaModulusTooSmall;
+
 }  // namespace net
 
 #endif  // NET_CERT_INTERNAL_SIGNATURE_POLICY_H_