Add support in generate scripts to handle Conditional

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

Index: Source/build/scripts/templates/ElementWrapperFactory.cpp.tmpl
diff --git a/Source/build/scripts/templates/ElementWrapperFactory.cpp.tmpl b/Source/build/scripts/templates/ElementWrapperFactory.cpp.tmpl
index 71ff72d986a8c121f8e0b5c1c920adb1c049d512..31c614e5b65312b4a3e5818c97989155aa2c8e34 100644
--- a/Source/build/scripts/templates/ElementWrapperFactory.cpp.tmpl
+++ b/Source/build/scripts/templates/ElementWrapperFactory.cpp.tmpl
@@ -31,6 +31,7 @@ static v8::Handle<v8::Object> create{{namespace}}ElementWrapper({{namespace}}Ele
     return v8::Handle<v8::Object>();
 }
 {% for js_interface, list in tags|sort|selectattr('has_js_interface')|groupby('js_interface') %}
+{% filter enable_conditional(list[0].Conditional) %}
 static v8::Handle<v8::Object> create{{js_interface}}Wrapper({{namespace}}Element* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     {% if list[0].contextConditional %}
@@ -43,6 +44,7 @@ static v8::Handle<v8::Object> create{{js_interface}}Wrapper({{namespace}}Element
     {% endif %}
     return wrap(static_cast<{{js_interface}}*>(element), creationContext, isolate);
 }
+{% endfilter %}
 {% endfor %}
 
 v8::Handle<v8::Object> createV8{{namespace}}Wrapper({{namespace}}Element* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
@@ -51,7 +53,9 @@ v8::Handle<v8::Object> createV8{{namespace}}Wrapper({{namespace}}Element* elemen
     DEFINE_STATIC_LOCAL(FunctionMap, map, ());
     if (map.isEmpty()) {
     {% for tag in tags|sort %}
+    {% filter enable_conditional(tag.Conditional) %}
         map.set({{tag|symbol}}Tag.localName().impl(), create{{tag.js_interface}}Wrapper);
+    {% endfilter %}
     {% endfor %}
     }
 
@@ -78,7 +82,9 @@ const WrapperTypeInfo* findWrapperTypeFor{{namespace}}TagName(const AtomicString
         // FIXME: This seems wrong. We should list every interface here, not
         // just the ones that have specialized JavaScript interfaces.
         {% for tag in tags|sort if tag.has_js_interface %}
+        {% filter enable_conditional(tag.Conditional) %}
         map.set({{tag|symbol}}Tag.localName().impl(), &V8{{tag.js_interface}}::wrapperTypeInfo);
+        {% endfilter %}
         {% endfor %}
     }