Delete MediaController class, move Call ownership to PeerConnection.

webrtc/pc/mediacontroller.h

-/*
- *  Copyright 2015 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_MEDIACONTROLLER_H_
-#define WEBRTC_PC_MEDIACONTROLLER_H_
-
-#include "webrtc/base/thread.h"
-
-namespace cricket {
-class ChannelManager;
-struct MediaConfig;
-}  // namespace cricket
-
-namespace webrtc {
-class Call;
-class VoiceEngine;
-class RtcEventLog;
-
-// The MediaController currently owns shared state between media channels.
-// Abstract interface is defined here such that it can be faked/mocked for
-// tests, but no other real reason.
-class MediaControllerInterface {
- public:
-  // Will never return nullptr.
-  static MediaControllerInterface* Create(
-      const cricket::MediaConfig& config,
-      rtc::Thread* worker_thread,
-      cricket::ChannelManager* channel_manager,
-      webrtc::RtcEventLog* event_log);
-
-  virtual ~MediaControllerInterface() {}
-  virtual void Close() = 0;
-  virtual webrtc::Call* call_w() = 0;
-  virtual cricket::ChannelManager* channel_manager() const = 0;
-  virtual const cricket::MediaConfig& config() const = 0;
-};
-}  // namespace webrtc
-
-#endif  // WEBRTC_PC_MEDIACONTROLLER_H_