Always embed manifests, even in component builds!

chrome/chrome_tests_unit.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': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 505 matching lines @@
       ],
       'msvs_settings': {
         'VCLinkerTool': {
           'conditions': [
             ['incremental_chrome_dll==1', {
               'UseLibraryDependencyInputs': "true",
             }],
           ],
         },
       },
-      'variables': {
-        'win_use_external_manifest': 1,
-      },
       'sources': [
         '../apps/app_keep_alive_service_unittest.cc',
         '../apps/app_shim/app_shim_host_mac_unittest.cc',
         '../apps/app_shim/extension_app_shim_handler_mac_unittest.cc',
         '../apps/app_window_geometry_cache_unittest.cc',
         '../apps/saved_files_service_unittest.cc',
         '../components/autofill/content/renderer/test_password_autofill_agent.cc',
         '../components/autofill/content/renderer/test_password_autofill_agent.h',
         '../components/autofill/content/renderer/test_password_generation_agent.cc',
         '../components/autofill/content/renderer/test_password_generation_agent.h',
@@ skipping 2367 matching lines @@
             'browser/ui/app_list/test/fake_profile_store.h',
             'browser/ui/app_list/test/fast_show_pickler_unittest.cc',
             'browser/ui/views/app_list/linux/app_list_linux_unittest.cc',
             'browser/ui/views/app_list/win/app_list_win_unittest.cc',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }