Refactor client cert private key handling.

chrome/browser/chromeos/net/client_cert_store_chromeos.h

 // Copyright 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 CHROME_BROWSER_CHROMEOS_NET_CLIENT_CERT_STORE_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_NET_CLIENT_CERT_STORE_CHROMEOS_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 40 matching lines @@
 
   // net::ClientCertStore:
   void GetClientCerts(const net::SSLCertRequestInfo& cert_request_info,
                       const ClientCertListCallback& callback) override;
 
  private:
   void GotAdditionalCerts(const net::SSLCertRequestInfo* request,
                           const ClientCertListCallback& callback,
                           const net::CertificateList& additional_certs);
 
-  net::CertificateList GetAndFilterCertsOnWorkerThread(
-      std::unique_ptr<crypto::CryptoModuleBlockingPasswordDelegate>
+  net::ClientCertIdentityList GetAndFilterCertsOnWorkerThread(
+      scoped_refptr<crypto::CryptoModuleBlockingPasswordDelegate>
           password_delegate,
       const net::SSLCertRequestInfo* request,
       const net::CertificateList& additional_certs);
 
   std::unique_ptr<CertificateProvider> cert_provider_;
   std::unique_ptr<CertFilter> cert_filter_;
 
   // The factory for creating the delegate for requesting a password to a
   // PKCS#11 token. May be null.
   PasswordDelegateFactory password_delegate_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ClientCertStoreChromeOS);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_NET_CLIENT_CERT_STORE_CHROMEOS_H_