Introduce struct MediaConfig, with construction-time settings.

webrtc/media/base/fakemediaengine.h

 /*
  *  Copyright (c) 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 647 matching lines @@
     // sanity checks against that.
     codecs_.push_back(AudioCodec(101, "fake_audio_codec", 0, 0, 1, 0));
   }
   bool Init(rtc::Thread* worker_thread) { return true; }
   void Terminate() {}
   rtc::scoped_refptr<webrtc::AudioState> GetAudioState() const {
     return rtc::scoped_refptr<webrtc::AudioState>();
   }
 
   VoiceMediaChannel* CreateChannel(webrtc::Call* call,
+                                   const MediaConfig& config,
                                    const AudioOptions& options) {
     if (fail_create_channel_) {
       return nullptr;
     }
 
     FakeVoiceMediaChannel* ch = new FakeVoiceMediaChannel(this, options);
     channels_.push_back(ch);
     return ch;
   }
   FakeVoiceMediaChannel* GetChannel(size_t index) {
@@ skipping 43 matching lines @@
     codecs_.push_back(VideoCodec(0, "fake_video_codec", 0, 0, 0, 0));
   }
   void Init() {}
   bool SetOptions(const VideoOptions& options) {
     options_ = options;
     options_changed_ = true;
     return true;
   }
 
   VideoMediaChannel* CreateChannel(webrtc::Call* call,
+                                   const MediaConfig& config,
                                    const VideoOptions& options) {
     if (fail_create_channel_) {
       return NULL;
     }
 
     FakeVideoMediaChannel* ch = new FakeVideoMediaChannel(this, options);
     channels_.push_back(ch);
     return ch;
   }
   FakeVideoMediaChannel* GetChannel(size_t index) {
@@ skipping 125 matching lines @@
 
  private:
   std::vector<FakeDataMediaChannel*> channels_;
   std::vector<DataCodec> data_codecs_;
   DataChannelType last_channel_type_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_FAKEMEDIAENGINE_H_