postMessage() should throw a DataCloneError on invalid transferables

Source/bindings/v8/V8Binding.h

Index: Source/bindings/v8/V8Binding.h
diff --git a/Source/bindings/v8/V8Binding.h b/Source/bindings/v8/V8Binding.h
index 9ed124a8430573db9d024008b4a200db6e586ffd..d5ced8a3326624403c350ff71d42a004c9ddb690 100644
--- a/Source/bindings/v8/V8Binding.h
+++ b/Source/bindings/v8/V8Binding.h
@@ -399,8 +399,11 @@ namespace WebCore {
     };
 
     template <class T, class V8T>
-    Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, v8::Isolate* isolate)
+    Vector<RefPtr<T> > toRefPtrNativeArray(v8::Handle<v8::Value> value, v8::Isolate* isolate, bool* success = 0)
     {
+        if (success)
+            *success = true;
+
         if (!value->IsArray())
             return Vector<RefPtr<T> >();
 
@@ -415,6 +418,8 @@ namespace WebCore {
                 v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(element);
                 result.append(V8T::toNative(object));
             } else {
+                if (success)
+                    *success = false;
                 throwTypeError("Invalid Array element type", isolate);
                 return Vector<RefPtr<T> >();
             }