Don't use nss_util in CertificateManagerModel::IsHardwareBacked.

net/cert/nss_cert_database.h

 // 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.
 
 #ifndef NET_CERT_NSS_CERT_DATABASE_H_
 #define NET_CERT_NSS_CERT_DATABASE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 160 matching lines @@
                     TrustBits trust_bits);
 
   // Delete certificate and associated private key (if one exists).
   // |cert| is still valid when this function returns. Returns true on
   // success.
   bool DeleteCertAndKey(const X509Certificate* cert);
 
   // Check whether cert is stored in a readonly slot.
   bool IsReadOnly(const X509Certificate* cert) const;
 
+  // Check whether cert is stored in a hardware slot.
+  bool IsHardwareBacked(const X509Certificate* cert) const;
+
   // Registers |observer| to receive notifications of certificate changes.  The
   // thread on which this is called is the thread on which |observer| will be
   // called back with notifications.
   void AddObserver(Observer* observer);
 
   // Unregisters |observer| from receiving notifications.  This must be called
   // on the same thread on which AddObserver() was called.
   void RemoveObserver(Observer* observer);
 
  private:
   friend struct DefaultSingletonTraits<NSSCertDatabase>;
 
   NSSCertDatabase();
   ~NSSCertDatabase();
 
   // Broadcasts notifications to all registered observers.
   void NotifyObserversOfCertAdded(const X509Certificate* cert);
   void NotifyObserversOfCertRemoved(const X509Certificate* cert);
   void NotifyObserversOfCACertChanged(const X509Certificate* cert);
 
   const scoped_refptr<ObserverListThreadSafe<Observer> > observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(NSSCertDatabase);
 };
 
 }  // namespace net
 
 #endif  // NET_CERT_NSS_CERT_DATABASE_H_