Use per-user nssdb in onc certificate importer

chromeos/network/onc/onc_certificate_importer.h

 // Copyright (c) 2013 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 CHROMEOS_NETWORK_ONC_ONC_CERTIFICATE_IMPORTER_H_
 #define CHROMEOS_NETWORK_ONC_ONC_CERTIFICATE_IMPORTER_H_
 
 #include "base/basictypes.h"
 #include "chromeos/chromeos_export.h"
 #include "components/onc/onc_constants.h"
 #include "net/cert/x509_certificate.h"
 
 namespace base {
 class ListValue;
 }
 
+namespace net {
+class NSSCertDatabase;
+}
+
 namespace chromeos {
 namespace onc {
 
 class CHROMEOS_EXPORT CertificateImporter {
  public:
   CertificateImporter() {}
   virtual ~CertificateImporter() {}
 
   // Import the |certificates|, which must be a list of ONC Certificate objects.
   // Certificates are only imported with web trust for user imports. If
   // |onc_trusted_certificates| is not NULL, it will be filled with the list
   // of certificates that requested the TrustBit "Web". If the "Remove" field of
   // a certificate is enabled, then removes the certificate from the store
   // instead of importing. Returns true if all certificates were imported
   // successfully.
   virtual bool ImportCertificates(
       const base::ListValue& certificates,
       ::onc::ONCSource source,
       net::CertificateList* onc_trusted_certificates) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CertificateImporter);
 };
 
 }  // namespace onc
 }  // namespace chromeos
 
 #endif  // CHROMEOS_NETWORK_ONC_ONC_CERTIFICATE_IMPORTER_H_