This reduces so the enrollment dialog so it just spawns a tab.

chrome/browser/chromeos/options/vpn_config_view.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 "chrome/browser/chromeos/options/vpn_config_view.h"
 
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/cros/onc_constants.h"
 #include "chrome/browser/chromeos/enrollment_dialog_view.h"
+#include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/common/net/x509_certificate_model.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 #include "grit/theme_resources.h"
 #include "net/base/cert_database.h"
 #include "net/base/x509_certificate.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/models/combobox_model.h"
 #include "ui/base/resource/resource_bundle.h"
@@ skipping 320 matching lines @@
         vpn->SetOpenVPNCredentials(GetUserCertID(),
                                    GetUsername(),
                                    GetUserPassphrase(),
                                    GetOTP());
         break;
       }
       case PROVIDER_TYPE_MAX:
         break;
     }
     vpn->SetEnrollmentDelegate(
-        EnrollmentDialogView::CreateEnrollmentDelegate(
-            GetWidget()->GetNativeWindow()));
+        CreateEnrollmentDelegate(GetWidget()->GetNativeWindow(),
+                                 ProfileManager::GetLastUsedProfile()));
     cros->ConnectToVirtualNetwork(vpn);
   }
   // Connection failures are responsible for updating the UI, including
   // reopening dialogs.
   return true;  // Close dialog.
 }
 
 void VPNConfigView::Cancel() {
 }
 
@@ skipping 498 matching lines @@
   std::string vpn_type;
   if (!vpn_dict || !vpn_dict->GetString(onc::kType, &vpn_type))
     return;
 
   property_ui_data->ParseOncProperty(
       network->ui_data(), onc,
       base::StringPrintf("%s.%s.%s", onc::kVPN, vpn_type.c_str(), key.c_str()));
 }
 
 }  // namespace chromeos