Take conditionals into account when writing AccessorConfiguration

Source/bindings/templates/interface_base.cpp

Index: Source/bindings/templates/interface_base.cpp
diff --git a/Source/bindings/templates/interface_base.cpp b/Source/bindings/templates/interface_base.cpp
index ea5c732e40872d01d3d2a217d839c10bde592e0b..ed19700065721c48997fe070840d028ee421c933 100644
--- a/Source/bindings/templates/interface_base.cpp
+++ b/Source/bindings/templates/interface_base.cpp
@@ -233,7 +233,9 @@ static const V8DOMConfiguration::AccessorConfiguration {{v8_class}}Accessors[] =
                 attribute.per_context_enabled_function or
                 attribute.exposed_test) and
            attribute.should_be_exposed_to_script) %}
+    {% filter conditional(attribute.conditional_string) %}
     {{attribute_configuration(attribute)}},
+    {% endfilter %}
     {% endfor %}
 };