1 files changed, 14 insertions, 2 deletions
diff --git a/WebCore/bridge/runtime_method.cpp b/WebCore/bridge/runtime_method.cpp
index 0af0af5..ffe4c0a 100644
--- a/WebCore/bridge/runtime_method.cpp
+++ b/WebCore/bridge/runtime_method.cpp
@@ -73,6 +73,18 @@ bool RuntimeMethod::getOwnPropertySlot(ExecState* exec, const Identifier& proper
     return InternalFunction::getOwnPropertySlot(exec, propertyName, slot);
 }
 
+bool RuntimeMethod::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor &descriptor)
+{
+    if (propertyName == exec->propertyNames().length) {
+        PropertySlot slot;
+        slot.setCustom(this, lengthGetter);
+        descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
+        return true;
+    }
+    
+    return InternalFunction::getOwnPropertyDescriptor(exec, propertyName, descriptor);
+}
+
 static JSValue JSC_HOST_CALL callRuntimeMethod(ExecState* exec, JSObject* function, JSValue thisValue, const ArgList& args)
 {
     RuntimeMethod* method = static_cast<RuntimeMethod*>(function);
@@ -82,13 +94,13 @@ static JSValue JSC_HOST_CALL callRuntimeMethod(ExecState* exec, JSObject* functi
     
     RuntimeObjectImp* imp;
 
-    if (thisValue.isObject(&RuntimeObjectImp::s_info)) {
+    if (thisValue.inherits(&RuntimeObjectImp::s_info)) {
         imp = static_cast<RuntimeObjectImp*>(asObject(thisValue));
     } else {
         // If thisObj is the DOM object for a plugin, get the corresponding
         // runtime object from the DOM object.
         JSValue value = thisValue.get(exec, Identifier(exec, "__apple_runtime_object"));
-        if (value.isObject(&RuntimeObjectImp::s_info))    
+        if (value.inherits(&RuntimeObjectImp::s_info))    
             imp = static_cast<RuntimeObjectImp*>(asObject(value));
         else
             return throwError(exec, TypeError);