Never create HTMLTrackElement when VideoTrack is not enabled

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

Index: Source/build/scripts/templates/ElementFactory.cpp.tmpl
diff --git a/Source/build/scripts/templates/ElementFactory.cpp.tmpl b/Source/build/scripts/templates/ElementFactory.cpp.tmpl
index 09322d282155d4ac7d06d19bb79b62fcb61236ba..231c403ad004346a7e2ec95c3d6bc5d090c5ef9f 100644
--- a/Source/build/scripts/templates/ElementFactory.cpp.tmpl
+++ b/Source/build/scripts/templates/ElementFactory.cpp.tmpl
@@ -43,15 +43,14 @@ static PassRefPtr<{{namespace}}Element> {{tag|symbol}}Constructor(
 {%- endif %}
     bool createdByParser)
 {
-{%- if tag.wrapperOnlyIfMediaIsAvailable %}
-    Settings* settings = document.settings();
-    if (!RuntimeEnabledFeatures::mediaEnabled() || (settings && !settings->mediaEnabled()))
-        return 0;
-{%- endif %}
 {%- if tag.contextConditional %}
     if (!ContextFeatures::{{tag.contextConditional}}Enabled(&document))
         return 0;
 {%- endif %}
+{%- if tag.runtimeEnabled %}
+    if (!RuntimeEnabledFeatures::{{tag.runtimeEnabled}}Enabled())
+        return 0;
+{%- endif %}
     return {{tag.interface}}::create(tagName, document
 {%- if namespace == 'HTML' and tag.constructorNeedsFormElement %}, formElement{% endif -%}
 {%- if tag.constructorNeedsCreatedByParser %}, createdByParser{% endif -%}