Enable sending MessagePorts to a different renderer (Blink side)

Source/core/events/MessageEvent.cpp

 /*
  * Copyright (C) 2007 Henry Mason (hmason@mac.com)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 69 matching lines @@
     , m_lastEventId(lastEventId)
     , m_source(source)
     , m_ports(ports)
 {
     ScriptWrappable::init(this);
     if (m_dataAsSerializedScriptValue)
         m_dataAsSerializedScriptValue->registerMemoryAllocatedWithCurrentScriptContext();
     ASSERT(isValidSource(m_source.get()));
 }
 
+MessageEvent::MessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, PassRefPtr<EventTarget> source, PassOwnPtr<MessagePortChannelArray> channels)
+    : Event(EventTypeNames::message, false, false)
+    , m_dataType(DataTypeSerializedScriptValue)
+    , m_dataAsSerializedScriptValue(data)
+    , m_origin(origin)
+    , m_lastEventId(lastEventId)
+    , m_source(source)
+    , m_channels(channels)
+{
+    ScriptWrappable::init(this);
+    if (m_dataAsSerializedScriptValue)
+        m_dataAsSerializedScriptValue->registerMemoryAllocatedWithCurrentScriptContext();
+    ASSERT(isValidSource(m_source.get()));
+}
+
 MessageEvent::MessageEvent(const String& data, const String& origin)
     : Event(EventTypeNames::message, false, false)
     , m_dataType(DataTypeString)
     , m_dataAsString(data)
     , m_origin(origin)
 {
     ScriptWrappable::init(this);
 }
 
 MessageEvent::MessageEvent(PassRefPtr<Blob> data, const String& origin)
@@ skipping 48 matching lines @@
 
     if (m_dataAsSerializedScriptValue)
         m_dataAsSerializedScriptValue->registerMemoryAllocatedWithCurrentScriptContext();
 }
 
 const AtomicString& MessageEvent::interfaceName() const
 {
     return EventNames::MessageEvent;
 }
 
+void MessageEvent::entangleMessagePorts(ExecutionContext* context)
+{
+    m_ports = MessagePort::entanglePorts(*context, m_channels.release());
+}
+
 } // namespace WebCore