Don't use nss_util in CertificateManagerModel::IsHardwareBacked.

net/cert/nss_cert_database.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 "net/cert/nss_cert_database.h"
 
 #include <cert.h>
 #include <certdb.h>
 #include <keyhi.h>
 #include <pk11pub.h>
@@ skipping 300 matching lines @@
   NotifyObserversOfCertRemoved(cert);
 
   return true;
 }
 
 bool NSSCertDatabase::IsReadOnly(const X509Certificate* cert) const {
   PK11SlotInfo* slot = cert->os_cert_handle()->slot;
   return slot && PK11_IsReadOnly(slot);
 }
 
+bool NSSCertDatabase::IsHardwareBacked(const X509Certificate* cert) const {
+  PK11SlotInfo* slot = cert->os_cert_handle()->slot;
+  return slot && PK11_IsHW(slot);
+}
+
 void NSSCertDatabase::AddObserver(Observer* observer) {
   observer_list_->AddObserver(observer);
 }
 
 void NSSCertDatabase::RemoveObserver(Observer* observer) {
   observer_list_->RemoveObserver(observer);
 }
 
 void NSSCertDatabase::NotifyObserversOfCertAdded(const X509Certificate* cert) {
   observer_list_->Notify(&Observer::OnCertAdded, make_scoped_refptr(cert));
 }
 
 void NSSCertDatabase::NotifyObserversOfCertRemoved(
     const X509Certificate* cert) {
   observer_list_->Notify(&Observer::OnCertRemoved, make_scoped_refptr(cert));
 }
 
 void NSSCertDatabase::NotifyObserversOfCACertChanged(
     const X509Certificate* cert) {
   observer_list_->Notify(
       &Observer::OnCACertChanged, make_scoped_refptr(cert));
 }
 
 }  // namespace net