Treat marker like a real shorthand for initial and inherit

Source/build/scripts/templates/StylePropertyShorthand.cpp.tmpl

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 30 matching lines @@
 }
 {% endfor %}
 
 // Returns an empty list if the property is not a shorthand
 const StylePropertyShorthand& shorthandForProperty(CSSPropertyID propertyID)
 {
     DEFINE_STATIC_LOCAL(StylePropertyShorthand, emptyShorthand, ());
     if (propertyID == CSSPropertyTextDecoration && !RuntimeEnabledFeatures::css3TextDecorationsEnabled())
         return emptyShorthand;
     switch (propertyID) {
-        {% for property_id, property in properties.items() if property.camel_case_name != "marker" %}
+        {% for property_id, property in properties.items() %}
         case {{property_id}}:
             return {{property.lower_camel_name}}Shorthand();
         {% endfor %}
     default: {
         return emptyShorthand;
     }
     }
 }
 
 void getMatchingShorthandsForLonghand(CSSPropertyID propertyID, Vector<StylePropertyShorthand, 4>* result)
 {
     ASSERT(!result->size());
     switch (propertyID) {
     {% for longhand_id, shorthands in longhands_dictionary.items() %}
     case {{longhand_id}}: {
         {% for shorthand in shorthands %}
         result->uncheckedAppend({{shorthand.lower_camel_name}}Shorthand());
         {% endfor %}
         break;
     }
     {% endfor %}
     default:
         break;
     }
 }
 
 } // namespace blink