| /* | 
 |  *  Copyright 2017 The WebRTC project authors. All Rights Reserved. | 
 |  * | 
 |  *  Use of this source code is governed by a BSD-style license | 
 |  *  that can be found in the LICENSE file in the root of the source | 
 |  *  tree. An additional intellectual property rights grant can be found | 
 |  *  in the file PATENTS.  All contributing project authors may | 
 |  *  be found in the AUTHORS file in the root of the source tree. | 
 |  */ | 
 |  | 
 | #ifndef WEBRTC_API_ORTC_PACKETTRANSPORTINTERFACE_H_ | 
 | #define WEBRTC_API_ORTC_PACKETTRANSPORTINTERFACE_H_ | 
 |  | 
 | namespace rtc { | 
 |  | 
 | class PacketTransportInternal; | 
 |  | 
 | }  // namespace rtc | 
 |  | 
 | namespace webrtc { | 
 |  | 
 | // Base class for different packet-based transports. | 
 | class PacketTransportInterface { | 
 |  public: | 
 |   virtual ~PacketTransportInterface() {} | 
 |  | 
 |  protected: | 
 |   // Only for internal use. Returns a pointer to an internal interface, for use | 
 |   // by the implementation. | 
 |   virtual rtc::PacketTransportInternal* GetInternal() = 0; | 
 |  | 
 |   // Classes that can use this internal interface. | 
 |   friend class RtpTransportControllerAdapter; | 
 | }; | 
 |  | 
 | }  // namespace webrtc | 
 |  | 
 | #endif  // WEBRTC_API_ORTC_PACKETTRANSPORTINTERFACE_H_ |