Add installer_util_unittests to the GN windows build

chrome/installer/upgrade_test.gyp

 # 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.
 
 {
   'variables': {
     'branding_dir': '../app/theme/<(branding_path_component)',
     'version_py': '<(DEPTH)/build/util/version.py',
     'version_path': '../../chrome/VERSION',
     'lastchange_path': '<(DEPTH)/build/util/LASTCHANGE',
     # 'branding_dir' is set in the 'conditions' section at the bottom.
     'msvs_use_common_release': 0,
     'msvs_use_common_linker_extras': 0,
   },
   'includes': [
     '../../build/win_precompile.gypi',
   ],
   'conditions': [
     ['OS=="win"', {
       'targets': [
         {
+          # GN version: //chrome/installer/test:alternate_version_generator_lib
           'target_name': 'alternate_version_generator_lib',
           'type': 'static_library',
           'dependencies': [
             '../chrome.gyp:installer_util',
             '../common_constants.gyp:common_constants',
             '../../base/base.gyp:base',
           ],
           'include_dirs': [
             '../..',
           ],
           'sources': [
             'test/alternate_version_generator.cc',
             'test/alternate_version_generator.h',
             'test/pe_image_resources.cc',
             'test/pe_image_resources.h',
             'test/resource_loader.cc',
             'test/resource_loader.h',
             'test/resource_updater.cc',
             'test/resource_updater.h',
           ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [4267, ],
         },
         {
+          # GN version: //chrome/installer/test:upgrade_test
           'target_name': 'upgrade_test',
           'type': 'executable',
           'dependencies': [
             'alternate_version_generator_lib',
             # This dependency, although correct, results in the mini installer
             # being rebuilt every time upgrade_test is built.  So disable it
             # for now.
             # TODO(grt): fix rules/targets/etc for
             # mini_installer.gyp:mini_installer so that it does no work if
             # nothing has changed, then un-comment this next line:
             # 'mini_installer.gyp:mini_installer',
             '../../base/base.gyp:test_support_base',
             '../../testing/gtest.gyp:gtest',
             '../chrome.gyp:installer_util',
             '../common_constants.gyp:common_constants',
           ],
           'include_dirs': [
             '../..',
           ],
           'sources': [
             'test/run_all_tests.cc',
             'test/upgrade_test.cc',
           ],
         },
         {
+          # GN version: //chrome/installer/test:alternate_version_generator
           'target_name': 'alternate_version_generator',
           'type': 'executable',
           'dependencies': [
             'alternate_version_generator_lib',
             '../../base/base.gyp:test_support_base',
             '../../testing/gtest.gyp:gtest',
             '../chrome.gyp:installer_util',
             '../common_constants.gyp:common_constants',
           ],
           'include_dirs': [
             '../..',
           ],
           'sources': [
             'test/alternate_version_generator_main.cc',
           ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [ 4267, ],
         },
       ],
     }],
   ],
 }