Added msvs_application_type_revision for winrt compilation

pylib/gyp/generator/msvs.py

Index: pylib/gyp/generator/msvs.py
diff --git a/pylib/gyp/generator/msvs.py b/pylib/gyp/generator/msvs.py
index edf2ae419ef59b740d5feb21240226b2d06e453d..eb1e17d5bff1da91cfc267fd692a6e0507f6a55d 100644
--- a/pylib/gyp/generator/msvs.py
+++ b/pylib/gyp/generator/msvs.py
@@ -86,6 +86,7 @@ generator_additional_non_configuration_keys = [
     'msvs_enable_winrt',
     'msvs_requires_importlibrary',
     'msvs_enable_winphone',
+    'msvs_application_type_revision',
 ]
 
 
@@ -2634,7 +2635,11 @@ def _GetMSBuildGlobalProperties(spec, guid, gyp_file_name):
   if spec.get('msvs_enable_winrt'):
     properties[0].append(['DefaultLanguage', 'en-US'])
     properties[0].append(['AppContainerApplication', 'true'])
-    properties[0].append(['ApplicationTypeRevision', '8.1'])
+    if spec.get('msvs_application_type_revision'):
+      app_type_revision = spec.get('msvs_application_type_revision')
+      properties[0].append(['ApplicationTypeRevision', app_type_revision])
+    else:
+      properties[0].append(['ApplicationTypeRevision', '8.1'])
 
     if spec.get('msvs_enable_winphone'):
       properties[0].append(['ApplicationType', 'Windows Phone'])