bindings: Supports per-member [Exposed] for attributes on prototype.

Source/bindings/templates/partial_interface.cpp

Index: Source/bindings/templates/partial_interface.cpp
diff --git a/Source/bindings/templates/partial_interface.cpp b/Source/bindings/templates/partial_interface.cpp
index 2282dd3a01534f8f4980c6ebbec88cdb7ffc2c9d..b4489a76153aa8d87a6d4feffe9d1aa97b3206b2 100644
--- a/Source/bindings/templates/partial_interface.cpp
+++ b/Source/bindings/templates/partial_interface.cpp
@@ -4,14 +4,18 @@
 {##############################################################################}
 {% block prepare_prototype_object %}
 {% from 'interface.cpp' import install_unscopeables with context %}
+{% from 'interface.cpp' import install_conditionally_enabled_attributes_on_prototype with context %}
 {% from 'methods.cpp' import install_conditionally_enabled_methods
         with context %}
-void {{v8_class_or_partial}}::preparePrototypeObject(v8::Isolate* isolate, v8::Local<v8::Object> prototypeObject)
+void {{v8_class_or_partial}}::preparePrototypeObject(v8::Isolate* isolate, v8::Local<v8::Object> prototypeObject, v8::Local<v8::FunctionTemplate> interfaceTemplate)
 {
-    {{v8_class}}::preparePrototypeObject(isolate, prototypeObject);
+    {{v8_class}}::preparePrototypeObject(isolate, prototypeObject, interfaceTemplate);
 {% if unscopeables %}
     {{install_unscopeables() | indent}}
 {% endif %}
+{% if has_conditional_attributes_on_prototype %}
+    {{install_conditionally_enabled_attributes_on_prototype() | indent}}
+{% endif %}
 {% if conditionally_enabled_methods %}
     {{install_conditionally_enabled_methods() | indent}}
 {% endif %}