Remove GetPkcs11Id from x509_certificate_model

chrome/common/net/x509_certificate_model_nss.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/common/net/x509_certificate_model.h"
 
 #include <cert.h>
 #include <cms.h>
 #include <hasht.h>
 #include <keyhi.h>  // SECKEY_DestroyPrivateKey
@@ skipping 240 matching lines @@
   DCHECK_EQ(cert_nicknames->numnicknames,
             static_cast<int>(certs.size()));
 
   for (int i = 0; i < cert_nicknames->numnicknames; ++i)
     nick_names->push_back(cert_nicknames->nicknames[i]);
 
   CERT_FreeNicknames(cert_nicknames);
   CERT_DestroyCertList(cert_list);
 }
 
-// For background see this discussion on dev-tech-crypto.lists.mozilla.org:
-// http://web.archiveorange.com/archive/v/6JJW7E40sypfZGtbkzxX
-//
-// NOTE: This function relies on the convention that the same PKCS#11 ID
-// is shared between a certificate and its associated private and public
-// keys.  I tried to implement this with PK11_GetLowLevelKeyIDForCert(),
-// but that always returns NULL on Chrome OS for me.
-std::string GetPkcs11Id(net::X509Certificate::OSCertHandle cert_handle) {
-  std::string pkcs11_id;
-  SECKEYPrivateKey *priv_key = PK11_FindKeyByAnyCert(cert_handle,
-                                                     NULL /* wincx */);
-  if (priv_key) {
-    // Get the CKA_ID attribute for a key.
-    SECItem* sec_item = PK11_GetLowLevelKeyIDForPrivateKey(priv_key);
-    if (sec_item) {
-      pkcs11_id = base::HexEncode(sec_item->data, sec_item->len);
-      SECITEM_FreeItem(sec_item, PR_TRUE);
-    }
-    SECKEY_DestroyPrivateKey(priv_key);
-  }
-  return pkcs11_id;
-}
-
 void GetExtensions(
     const string& critical_label,
     const string& non_critical_label,
     X509Certificate::OSCertHandle cert_handle,
     Extensions* extensions) {
   if (cert_handle->extensions) {
     for (size_t i = 0; cert_handle->extensions[i] != NULL; ++i) {
       Extension extension;
       extension.name = psm::GetOIDText(&cert_handle->extensions[i]->id);
       extension.value = ProcessExtension(
@@ skipping 110 matching lines @@
 string ProcessRawBitsSignatureWrap(X509Certificate::OSCertHandle cert_handle) {
   return ProcessRawBits(cert_handle->signatureWrap.signature.data,
                         cert_handle->signatureWrap.signature.len);
 }
 
 void RegisterDynamicOids() {
   psm::RegisterDynamicOids();
 }
 
 }  // namespace x509_certificate_model