Remove sandbox on Windows.

ash/ash.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # These files lists are shared with the GN build.
     'ash_sources': [
       'accelerators/accelerator_commands.cc',
@@ skipping 1288 matching lines @@
       'type': 'static_library',
       'dependencies': [
         'ash_shell_lib',
         '../content/content_shell_and_tests.gyp:content_shell_lib',
         '../content/content.gyp:content',
         '../skia/skia.gyp:skia',
       ],
       'sources': [
         '<@(ash_shell_with_content_lib_sources)',
       ],
-      'conditions': [
-        ['OS=="win"', {
-          'dependencies': [
-            '../content/content.gyp:sandbox_helper_win',
-          ],
-        }],
-      ],
     },
     {
       # GN version: //ash:ash_shell_with_content
       'target_name': 'ash_shell_with_content',
       'type': 'executable',
       'dependencies': [
         'ash_shell_lib_with_content',
         '../components/components.gyp:user_manager',
       ],
       'sources': [
         'shell/content/shell_with_content_main.cc',
       ],
       'conditions': [
         ['OS=="win"', {
           'msvs_settings': {
             'VCLinkerTool': {
               'SubSystem': '2',  # Set /SUBSYSTEM:WINDOWS
             },
           },
-          'dependencies': [
-            '../sandbox/sandbox.gyp:sandbox',
-          ],
         }],
         ['chromeos==1', {
           'dependencies': [
             '../device/bluetooth/bluetooth.gyp:device_bluetooth',
           ],
         }],
       ],
     },
   ],
   'conditions': [
@@ skipping 18 matching lines @@
                   '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
                 ],
               }
             ],
           ],
         },
       ],
     }],
   ],
 }