[Mac] Add option to reauthenticate the OS user before revealing passwords.

chrome/chrome_browser.gypi

 # Copyright 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 1350 matching lines @@
         'browser/password_manager/password_form_manager.h',
         'browser/password_manager/password_generation_manager.cc',
         'browser/password_manager/password_generation_manager.h',
         'browser/password_manager/password_manager.cc',
         'browser/password_manager/password_manager.h',
         'browser/password_manager/password_manager_delegate.h',
         'browser/password_manager/password_manager_delegate_impl.cc',
         'browser/password_manager/password_manager_delegate_impl.h',
         'browser/password_manager/password_manager_metrics_util.cc',
         'browser/password_manager/password_manager_metrics_util.h',
+        'browser/password_manager/password_manager_util.h',
+        'browser/password_manager/password_manager_util_mac.mm',
+        'browser/password_manager/password_manager_util_stub.cc',
         'browser/password_manager/password_store.cc',
         'browser/password_manager/password_store.h',
         'browser/password_manager/password_store_consumer.cc',
         'browser/password_manager/password_store_consumer.h',
         'browser/password_manager/password_store_default.cc',
         'browser/password_manager/password_store_default.h',
         'browser/password_manager/password_store_factory.cc',
         'browser/password_manager/password_store_factory.h',
         'browser/password_manager/password_store_mac.cc',
         'browser/password_manager/password_store_mac.h',
@@ skipping 2315 matching lines @@
             'package_name': 'org/chromium/chrome/browser/ui/toolbar',
             'template_deps': ['browser/ui/toolbar/toolbar_model_security_level_list.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }