Check TBSCertificate.algorithm and Certificate.signatureAlgorithm for

net/cert/x509_certificate_openssl.cc

Index: net/cert/x509_certificate_openssl.cc
diff --git a/net/cert/x509_certificate_openssl.cc b/net/cert/x509_certificate_openssl.cc
index 730eef0d6acf3f65bdd4c01f46beb8ed826d79e8..30d9598a50ae32c58b4362d54d5dcd090461fd7f 100644
--- a/net/cert/x509_certificate_openssl.cc
+++ b/net/cert/x509_certificate_openssl.cc
@@ -377,24 +377,6 @@ void X509Certificate::GetPublicKeyInfo(OSCertHandle cert_handle,
   }
 }
 
-// static
-X509Certificate::SignatureHashAlgorithm
-X509Certificate::GetSignatureHashAlgorithm(OSCertHandle cert_handle) {
-  int sig_alg = OBJ_obj2nid(cert_handle->sig_alg->algorithm);
-  if (sig_alg == NID_md2WithRSAEncryption)
-    return kSignatureHashAlgorithmMd2;
-  if (sig_alg == NID_md4WithRSAEncryption)
-    return kSignatureHashAlgorithmMd4;
-  if (sig_alg == NID_md5WithRSAEncryption || sig_alg == NID_md5WithRSA)
-    return kSignatureHashAlgorithmMd5;
-  if (sig_alg == NID_sha1WithRSAEncryption || sig_alg == NID_dsaWithSHA ||
-      sig_alg == NID_dsaWithSHA1 || sig_alg == NID_dsaWithSHA1_2 ||
-      sig_alg == NID_sha1WithRSA || sig_alg == NID_ecdsa_with_SHA1) {
-    return kSignatureHashAlgorithmSha1;
-  }
-  return kSignatureHashAlgorithmOther;
-}
-
 bool X509Certificate::IsIssuedByEncoded(
     const std::vector<std::string>& valid_issuers) {
   if (valid_issuers.empty())