Remove the externs for VerifyCertificateChain()'s errors.

net/cert/internal/verify_certificate_chain.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_VERIFY_CERTIFICATE_CHAIN_H_
 #define NET_CERT_INTERNAL_VERIFY_CERTIFICATE_CHAIN_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 57 matching lines @@
 //     validating the path are appended to this structure. There is no
 //     guarantee that on success |errors| is empty, or conversely that
 //     on failure |errors| is non-empty. Consumers must only use the
 //     boolean return value to determine success/failure.
 NET_EXPORT bool VerifyCertificateChain(const ParsedCertificateList& certs,
                                        const TrustAnchor* trust_anchor,
                                        const SignaturePolicy* signature_policy,
                                        const der::GeneralizedTime& time,
                                        CertErrors* errors) WARN_UNUSED_RESULT;
 
-// -----------------------------------------------
-// Errors/Warnings set by VerifyCertificateChain
-// -----------------------------------------------
-
-namespace verify_certificate_chain_errors {
-
-// TODO(eroman): Document each of these and their parameters.
-extern CertErrorId kSignatureAlgorithmMismatch;
-extern CertErrorId kInvalidOrUnsupportedSignatureAlgorithm;
-extern CertErrorId kChainIsEmpty;
-extern CertErrorId kUnconsumedCriticalExtension;
-extern CertErrorId kTargetCertInconsistentCaBits;
-extern CertErrorId kKeyCertSignBitNotSet;
-extern CertErrorId kMaxPathLengthViolated;
-extern CertErrorId kBasicConstraintsIndicatesNotCa;
-extern CertErrorId kMissingBasicConstraints;
-extern CertErrorId kNotPermittedByNameConstraints;
-extern CertErrorId kSubjectDoesNotMatchIssuer;
-extern CertErrorId kVerifySignedDataFailed;
-extern CertErrorId kValidityFailedNotAfter;
-extern CertErrorId kValidityFailedNotBefore;
-extern CertErrorId kSignatureAlgorithmsDifferentEncoding;
-
-}  // namespace verify_certificate_chain_errors
-
 }  // namespace net
 
 #endif  // NET_CERT_INTERNAL_VERIFY_CERTIFICATE_CHAIN_H_