Delete unused class cricket::MediaSinkInterface, and mediasink.h.

webrtc/pc/mediasink.h

-/*
- *  Copyright 2004 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_PC_MEDIASINK_H_
-#define WEBRTC_PC_MEDIASINK_H_
-
-namespace cricket {
-
-// MediaSinkInterface is a sink to handle RTP and RTCP packets that are sent or
-// received by a channel.
-class MediaSinkInterface {
- public:
-  virtual ~MediaSinkInterface() {}
-
-  virtual void SetMaxSize(size_t size) = 0;
-  virtual bool Enable(bool enable) = 0;
-  virtual bool IsEnabled() const = 0;
-  virtual void OnPacket(const void* data, size_t size, bool rtcp) = 0;
-  virtual void set_packet_filter(int filter) = 0;
-};
-
-}  // namespace cricket
-
-#endif  // WEBRTC_PC_MEDIASINK_H_