Move VoiceEngineObserver into AudioSendStream so that we detect typing noises and return properly i…

talk/media/base/fakemediaengine.h

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 715 matching lines @@
 class FakeVoiceEngine : public FakeBaseEngine {
  public:
   FakeVoiceEngine()
       : output_volume_(-1) {
     // Add a fake audio codec. Note that the name must not be "" as there are
     // 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() {}
-  webrtc::VoiceEngine* GetVoE() { return nullptr; }
+  rtc::scoped_refptr<webrtc::AudioState> GetAudioState() const {
+    return rtc::scoped_refptr<webrtc::AudioState>();
+  }
   AudioOptions GetOptions() const {
     return options_;
   }
   bool SetOptions(const AudioOptions& options) {
     options_ = options;
     options_changed_ = true;
     return true;
   }
 
   VoiceMediaChannel* CreateChannel(webrtc::Call* call,
@@ skipping 238 matching lines @@
 
  private:
   std::vector<FakeDataMediaChannel*> channels_;
   std::vector<DataCodec> data_codecs_;
   DataChannelType last_channel_type_;
 };
 
 }  // namespace cricket
 
 #endif  // TALK_MEDIA_BASE_FAKEMEDIAENGINE_H_