Adding "adapter" ORTC objects on top of ChannelManager/BaseChannel/etc.

webrtc/pc/mediasession.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.
  */
 
@@ skipping 74 matching lines @@
   }
 
   bool operator!=(const RtpTransceiverDirection& o) const {
     return !(*this == o);
   }
 
   static RtpTransceiverDirection FromMediaContentDirection(
       MediaContentDirection md);
 
   MediaContentDirection ToMediaContentDirection() const;
+
+  RtpTransceiverDirection Reversed() const {
+    return RtpTransceiverDirection(recv, send);
+  }
 };
 
 RtpTransceiverDirection
 NegotiateRtpTransceiverDirection(RtpTransceiverDirection offer,
                                  RtpTransceiverDirection wants);
 
 struct MediaSessionOptions {
   MediaSessionOptions()
       : recv_audio(true),
         recv_video(false),
@@ skipping 506 matching lines @@
 void GetSupportedVideoCryptoSuiteNames(const rtc::CryptoOptions& crypto_options,
     std::vector<std::string>* crypto_suite_names);
 void GetSupportedDataCryptoSuiteNames(const rtc::CryptoOptions& crypto_options,
     std::vector<std::string>* crypto_suite_names);
 void GetDefaultSrtpCryptoSuiteNames(const rtc::CryptoOptions& crypto_options,
     std::vector<std::string>* crypto_suite_names);
 
 }  // namespace cricket
 
 #endif  // WEBRTC_PC_MEDIASESSION_H_