IDL: restructure logic handling registration of methods

Source/bindings/templates/interface.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by {{code_generator}}. DO NOT MODIFY!
 
 #ifndef {{v8_class}}_h
 #define {{v8_class}}_h
 
 {% filter conditional(conditional_string) %}
@@ skipping 135 matching lines @@
         return static_cast<{{cpp_class}}*>(object);
         {% endif %}
     }
     {% if interface_name == 'Window' %}
     static bool namedSecurityCheckCustom(v8::Local<v8::Object> host, v8::Local<v8::Value> key, v8::AccessType, v8::Local<v8::Value> data);
     static bool indexedSecurityCheckCustom(v8::Local<v8::Object> host, uint32_t index, v8::AccessType, v8::Local<v8::Value> data);
     {% endif %}
     static void installPerContextEnabledProperties(v8::Handle<v8::Object>, {{cpp_class}}*, v8::Isolate*){% if has_per_context_enabled_attributes %};
     {% else %} { }
     {% endif %}
-    static void installPerContextEnabledMethods(v8::Handle<v8::Object>, v8::Isolate*){% if has_per_context_enabled_methods %};
+    static void installPerContextEnabledMethods(v8::Handle<v8::Object>, v8::Isolate*){% if per_context_enabled_methods %};
     {% else %} { }
     {% endif %}
     {# Element wrappers #}
     {% if interface_name == 'HTMLElement' %}
     friend v8::Handle<v8::Object> createV8HTMLWrapper(HTMLElement*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
     friend v8::Handle<v8::Object> createV8HTMLDirectWrapper(HTMLElement*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
     {% elif interface_name == 'SVGElement' %}
     friend v8::Handle<v8::Object> createV8SVGWrapper(SVGElement*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
     friend v8::Handle<v8::Object> createV8SVGDirectWrapper(SVGElement*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
     friend v8::Handle<v8::Object> createV8SVGFallbackWrapper(SVGElement*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
@@ skipping 118 matching lines @@
     v8SetReturnValueFast(callbackInfo, impl.get(), wrappable);
 }
 
 {% if has_event_constructor %}
 bool initialize{{cpp_class}}({{cpp_class}}Init&, const Dictionary&, ExceptionState&, const v8::FunctionCallbackInfo<v8::Value>& info, const String& = "");
 
 {% endif %}
 }
 {% endfilter %}
 #endif // {{v8_class}}_h