Expose RTCDataChannel and RTCDataChannelEvent (with constructor)

third_party/WebKit/Source/modules/peerconnection/RTCDataChannelEvent.h

 /*
  * Copyright (C) 2012 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:
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  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
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  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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 #ifndef RTCDataChannelEvent_h
 #define RTCDataChannelEvent_h
 
 #include "modules/EventModules.h"
 #include "modules/peerconnection/RTCDataChannel.h"
+#include "modules/peerconnection/RTCDataChannelEventInit.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
 class RTCDataChannelEvent final : public Event {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   ~RTCDataChannelEvent() override;
 
   static RTCDataChannelEvent* create(const AtomicString& type,
                                      bool canBubble,
                                      bool cancelable,
                                      RTCDataChannel*);
 
+  static RTCDataChannelEvent* create(const AtomicString& type,
+                                     const RTCDataChannelEventInit&);
+
   RTCDataChannel* channel() const;
 
   const AtomicString& interfaceName() const override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   RTCDataChannelEvent(const AtomicString& type,
                       bool canBubble,
                       bool cancelable,
                       RTCDataChannel*);
 
+  RTCDataChannelEvent(const AtomicString& type, const RTCDataChannelEventInit&);
   Member<RTCDataChannel> m_channel;
 };
 
 }  // namespace blink
 
 #endif  // RTCDataChannelEvent_h