When install default apps on the Mac, don't need to do extra checking

chrome/browser/extensions/external_extension_provider_impl.cc

 // Copyright (c) 2011 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/extensions/external_extension_provider_impl.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
@@ skipping 337 matching lines @@
               Extension::EXTERNAL_POLICY_DOWNLOAD,
               Extension::NO_FLAGS)));
 
 #if !defined(OS_CHROMEOS)
   if (default_apps::ShouldInstallInProfile(profile)) {
     provider_list->push_back(
         linked_ptr<ExternalExtensionProviderInterface>(
             new ExternalExtensionProviderImpl(
                 service,
                 new ExternalPrefExtensionLoader(
-                    chrome::DIR_DEFAULT_APPS, options),
+                    chrome::DIR_DEFAULT_APPS,
+                    ExternalPrefExtensionLoader::NONE),
                 Extension::EXTERNAL_PREF,
                 Extension::INVALID,
                 Extension::FROM_BOOKMARK)));
   }
 #endif
 }