Remove obsolete document wrapper creation in named constructors

Source/bindings/templates/methods.cpp

Index: Source/bindings/templates/methods.cpp
diff --git a/Source/bindings/templates/methods.cpp b/Source/bindings/templates/methods.cpp
index 4a44e7228dc0ce23b2376546459023e7542a645f..7bb209af1074f3b4fa321c5e2b62b7ef9585b270 100644
--- a/Source/bindings/templates/methods.cpp
+++ b/Source/bindings/templates/methods.cpp
@@ -540,13 +540,7 @@ static void {{v8_class}}ConstructorCallback(const v8::FunctionCallbackInfo<v8::V
         return;
     }
 
-    Document* documentPtr = currentDOMWindow(isolate)->document();
-    ASSERT(documentPtr);
-    Document& document = *documentPtr;
-
-    // Make sure the document is added to the DOM Node map. Otherwise, the {{cpp_class}} instance
-    // may end up being the only node in the map and get garbage-collected prematurely.
-    toV8(documentPtr, info.Holder(), isolate);
+    Document& document = *toDocument(currentExecutionContext(isolate));
 
     {% if constructor.has_exception_state %}
     ExceptionState exceptionState(ExceptionState::ConstructionContext, "{{interface_name}}", info.Holder(), isolate);