1 files changed, 5 insertions, 14 deletions
diff --git a/Source/WebCore/bindings/js/JSMessageChannelCustom.cpp b/Source/WebCore/bindings/js/JSMessageChannelCustom.cpp
index 3b2b26189..375dd4b5f 100644
--- a/Source/WebCore/bindings/js/JSMessageChannelCustom.cpp
+++ b/Source/WebCore/bindings/js/JSMessageChannelCustom.cpp
@@ -27,27 +27,18 @@
 
 #if ENABLE(CHANNEL_MESSAGING)
 
+#include "DOMWrapperWorld.h"
 #include "JSMessageChannel.h"
-
-#include "MessageChannel.h"
-#include <runtime/Error.h>
-
-using namespace JSC;
+#include <heap/SlotVisitorInlines.h>
 
 namespace WebCore {
 
-void JSMessageChannel::visitChildren(JSCell* cell, SlotVisitor& visitor)
+void JSMessageChannel::visitAdditionalChildren(JSC::SlotVisitor& visitor)
 {
-    JSMessageChannel* thisObject = jsCast<JSMessageChannel*>(cell);
-    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
-    COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
-    ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
-    Base::visitChildren(thisObject, visitor);
-
-    if (MessagePort* port = thisObject->m_impl->port1())
+    if (MessagePort* port = wrapped().port1())
         visitor.addOpaqueRoot(port);
 
-    if (MessagePort* port = thisObject->m_impl->port2())
+    if (MessagePort* port = wrapped().port2())
         visitor.addOpaqueRoot(port);
 }