IDL compiler: [PerContextEnabled] methods

Source/bindings/templates/interface.h

 {# http://www.chromium.org/blink/coding-style#TOC-License #}
 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 67 matching lines @@
         return impl;
     }
 
     static inline {{cpp_class_name}}* fromInternalPointer(void* object)
     {
         return static_cast<{{cpp_class_name}}*>(object);
     }
     static void installPerContextEnabledProperties(v8::Handle<v8::Object>, {{cpp_class_name}}*, v8::Isolate*){% if has_per_context_enabled_attributes %};
     {% else %} { }
     {% endif %}
-    static void installPerContextEnabledPrototypeProperties(v8::Handle<v8::Object>, v8::Isolate*) { }
+    static void installPerContextEnabledPrototypeProperties(v8::Handle<v8::Object>, v8::Isolate*){% if has_per_context_enabled_attributes %};
+    {% else %} { }
+    {% endif %}
 
 private:
     friend v8::Handle<v8::Object> wrap({{cpp_class_name}}*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
     static v8::Handle<v8::Object> createWrapper(PassRefPtr<{{cpp_class_name}}>, v8::Handle<v8::Object> creationContext, v8::Isolate*);
 };
 
 template<>
 class WrapperTypeTraits<{{cpp_class_name}} > {
 public:
     static const WrapperTypeInfo* wrapperTypeInfo() { return &{{v8_class_name}}::wrapperTypeInfo; }
@@ skipping 79 matching lines @@
     v8SetReturnValueFast(callbackInfo, impl.get(), wrappable);
 }
 
 }
 {% if conditional_string %}
 
 #endif // {{conditional_string}}
 {% endif %}
 
 #endif // {{v8_class_name}}_h