Add constants and primitive type readonly attributes to Python IDL compiler

Source/bindings/templates/callback_interface.cpp

 /*
  * 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 51 matching lines @@
     v8::Isolate* isolate = v8::Isolate::GetCurrent();
     v8::HandleScope handleScope(isolate);
 
     v8::Handle<v8::Context> v8Context = toV8Context(scriptExecutionContext(), m_world.get());
     if (v8Context.IsEmpty())
         return true;
 
     v8::Context::Scope scope(v8Context);
 
 {% for argument in method.arguments %}
-    {{argument.cpp_to_js_conversion | indent(4)}}
+    {{argument.cpp_to_v8_conversion | indent}}
     if ({{argument.name}}Handle.IsEmpty()) {
         if (!isScriptControllerTerminating())
             CRASH();
         return true;
     }
 {% endfor %}
 {% if method.arguments | length > 0 %}
     v8::Handle<v8::Value> argv[] = { {{method.handles}} };
 {% else %}
     v8::Handle<v8::Value> *argv = 0;
 {% endif %}
 
     bool callbackReturnValue = false;
     return !invokeCallback(m_callback.newLocal(isolate), {{method.arguments | length}}, argv, callbackReturnValue, scriptExecutionContext());
 }
 
 {% endif %}
 {% endfor %}{# for method in methods #}
 } // namespace WebCore
 
 {% if conditional_string %}
 #endif // {{conditional_string}}
 {% endif %}