Add device-level token entryption to CertLibrary.

chrome/browser/chromeos/app_mode/kiosk_app_launcher.cc

 // 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.
 
 #include "chrome/browser/chromeos/app_mode/kiosk_app_launcher.h"
 
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "chrome/browser/chromeos/cros/cert_library.h"
@@ skipping 107 matching lines @@
 
   running_instance_ = NULL;
   success_ = success;
 
   if (!callback_.is_null())
     callback_.Run(success_);
 }
 
 void KioskAppLauncher::StartMount() {
   const std::string token =
-      CrosLibrary::Get()->GetCertLibrary()->EncryptToken(app_id_);
+      CrosLibrary::Get()->GetCertLibrary()->EncryptWithUserKey(app_id_);
 
   cryptohome::AsyncMethodCaller::GetInstance()->AsyncMount(
       app_id_,
       token,
       cryptohome::CREATE_IF_MISSING,
       base::Bind(&KioskAppLauncher::MountCallback,
                  base::Unretained(this)));
 }
 
 void KioskAppLauncher::MountCallback(bool mount_success,
                                      cryptohome::MountError mount_error) {
   if (!mount_success) {
     LOG(ERROR) << "Failed to mount, error=" << mount_error;
     ReportLaunchResult(false);
     return;
   }
 
   RestartChrome(GetKioskAppCommandLine(app_id_));
   ReportLaunchResult(true);
 }
 
 }  // namespace chromeos