Enable sending MessagePorts to a different renderer (Blink side)

Source/web/WebDOMMessageEvent.cpp

 /*
  * Copyright (C) 2011 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 27 matching lines @@
 #include "core/dom/Document.h"
 #include "core/events/MessageEvent.h"
 #include "core/dom/MessagePort.h"
 #include "core/frame/DOMWindow.h"
 #include "public/platform/WebString.h"
 
 using namespace WebCore;
 
 namespace WebKit {
 
-void WebDOMMessageEvent::initMessageEvent(const WebString& type, bool canBubble, bool cancelable, const WebSerializedScriptValue& messageData, const WebString& origin, const WebFrame* sourceFrame, const WebString& lastEventId)
+void WebDOMMessageEvent::initMessageEvent(const WebString& type, bool canBubble, bool cancelable, const WebSerializedScriptValue& messageData, const WebString& origin, const WebFrame* sourceFrame, const WebString& lastEventId, const WebMessagePortChannelArray& webChannels)
 {
     ASSERT(m_private.get());
     ASSERT(isMessageEvent());
     DOMWindow* window = 0;
     if (sourceFrame)
         window = toWebFrameImpl(sourceFrame)->frame()->domWindow();
     OwnPtr<MessagePortArray> ports;
+    if (!webChannels.isEmpty() && sourceFrame) {
+        OwnPtr<MessagePortChannelArray> channels = adoptPtr(new MessagePortChannelArray(webChannels.size()));
+        for (size_t i = 0; i < webChannels.size(); ++i)
+            (*channels)[i] = MessagePortChannel::create(webChannels[i]);
+        ports = MessagePort::entanglePorts(*window->document(), channels.release());
+    }
     unwrap<MessageEvent>()->initMessageEvent(type, canBubble, cancelable, messageData, origin, lastEventId, window, ports.release());
 }
 
 WebSerializedScriptValue WebDOMMessageEvent::data() const
 {
     return WebSerializedScriptValue(constUnwrap<MessageEvent>()->dataAsSerializedScriptValue());
 }
 
 WebString WebDOMMessageEvent::origin() const
 {
     return WebString(constUnwrap<MessageEvent>()->origin());
 }
 
+WebMessagePortChannelArray WebDOMMessageEvent::releaseChannels()
+{
+    MessagePortChannelArray channels = constUnwrap<MessageEvent>()->channels();
+    WebMessagePortChannelArray webChannels(channels.size());
+    for (size_t i = 0; i < channels.size(); ++i)
+        webChannels[i] = channels[i]->webChannelRelease();
+    return webChannels;
+}
+
 } // namespace WebKit