Convert components/native_app_window.gypi to a gyp to fix a cycle

components/native_app_window/native_app_window.gyp

 # Copyright 2014 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,
+  },
   'targets': [
     {
       'target_name': 'native_app_window',
       'type': 'static_library',
       'dependencies': [
-        '../base/base.gyp:base',
-        '../content/content.gyp:content_browser',
-        '../extensions/extensions.gyp:extensions_browser',
-        '../extensions/extensions.gyp:extensions_common',
-        '../skia/skia.gyp:skia',
-        '../ui/views/views.gyp:views',
+        '../../base/base.gyp:base',
+        '../../content/content.gyp:content_browser',
+        '../../extensions/extensions.gyp:extensions_browser',
+        '../../extensions/extensions.gyp:extensions_common',
+        '../../skia/skia.gyp:skia',
+        '../../ui/views/views.gyp:views',
       ],
       'include_dirs': [
-        '..',
+        '../..',
       ],
       'sources': [
-        'native_app_window/native_app_window_views.cc',
-        'native_app_window/native_app_window_views.h',
+        'native_app_window_views.cc',
+        'native_app_window_views.h',
       ],
     },
   ],
 }