[Windows Sandbox] MITIGATION_EXTENSION_POINT_DISABLE support for children.

sandbox/win/sandbox_win.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'sandbox_windows_target': 0,
       'target_arch%': 'ia32',
     },
@@ skipping 187 matching lines @@
             },
           ],
         }],
       ],
     },
     {
       'target_name': 'sbox_integration_tests',
       'type': 'executable',
       'dependencies': [
         'sandbox',
+        'sbox_integration_test_hook_dll',
+        'sbox_integration_test_win_proc',
         '../base/base.gyp:test_support_base',
         '../testing/gtest.gyp:gtest',
       ],
       'sources': [
         'src/address_sanitizer_test.cc',
         'src/app_container_test.cc',
         'src/file_policy_test.cc',
         'src/handle_inheritance_test.cc',
         'src/handle_policy_test.cc',
         'tests/integration_tests/integration_tests_test.cc',
@@ skipping 10 matching lines @@
         'src/sync_policy_test.h',
         'src/unload_dll_test.cc',
         'tests/common/controller.cc',
         'tests/common/controller.h',
         'tests/common/test_utils.cc',
         'tests/common/test_utils.h',
         'tests/integration_tests/integration_tests.cc',
       ],
     },
     {
+      'target_name': 'sbox_integration_test_hook_dll',
+      'type': 'shared_library',
+      'dependencies': [
+      ],
+      'sources': [
+        'tests/integration_tests/hooking_dll.cc',
+      ],
+    },
+    {
+      'target_name': 'sbox_integration_test_win_proc',
+      'type': 'executable',
+      'dependencies': [
+      ],
+      'sources': [
+        'tests/integration_tests/hooking_win_proc.cc',
+      ],
+      'msvs_settings': {
+        'VCLinkerTool': {
+          'SubSystem': '2',  # Set /SUBSYSTEM:WINDOWS
+        },
+      },
+    },
+    {
       'target_name': 'sbox_validation_tests',
       'type': 'executable',
       'dependencies': [
         'sandbox',
         '../base/base.gyp:test_support_base',
         '../testing/gtest.gyp:gtest',
       ],
       'sources': [
         'tests/common/controller.cc',
         'tests/common/controller.h',
@@ skipping 146 matching lines @@
             '../../build/isolate.gypi',
           ],
           'sources': [
             '../sbox_validation_tests.isolate',
           ],
         },
       ],
     }],
   ],
 }