[App Shell] Port app_shell to windows aura.

apps/apps.gypi

 # Copyright 2013 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': 'apps',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 79 matching lines @@
           'sources/': [
             ['exclude', 'ui/views/'],
           ],
         }],
       ],
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267, ],
     },
   ],  # targets
   'conditions': [
-    ['chromeos==1 or (OS=="linux" and use_aura==1)', {
+    ['chromeos==1 or (OS=="linux" and use_aura==1) or (OS=="win" and use_aura==1)', {
       'targets': [
         {
           'target_name': 'app_shell',
           'type': 'executable',
           'defines!': ['CONTENT_IMPLEMENTATION'],
           'variables': {
             'chromium_code': 1,
           },
           'dependencies': [
             'apps',
@@ skipping 30 matching lines @@
             'shell/browser/shell_extensions_browser_client.h',
             'shell/browser/web_view_window.cc',
             'shell/browser/web_view_window.cc',
             'shell/common/shell_content_client.cc',
             'shell/common/shell_content_client.h',
             'shell/common/shell_extensions_client.cc',
             'shell/common/shell_extensions_client.h',
             'shell/renderer/shell_content_renderer_client.cc',
             'shell/renderer/shell_content_renderer_client.h',
           ],
+          'conditions': [
+            ['OS=="win"', {
+              'msvs_settings': {
+                'VCLinkerTool': {
+                  'SubSystem': '2',  # Set /SUBSYSTEM:WINDOWS
+                },
+              },
+              'dependencies': [
+                '../sandbox/sandbox.gyp:sandbox',
+              ],
+            }],
+          ],
         },
       ],  # targets
     }],  # chromeos==1
   ],  # conditions
 }