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

webrtc/audio/audio_receive_stream.h

Index: webrtc/audio/audio_receive_stream.h
diff --git a/webrtc/audio/audio_receive_stream.h b/webrtc/audio/audio_receive_stream.h
index 5d02b0e2aecb9ac04fae18610d83c15a266a5f67..984d55b87377b67ed575ddc4138bfe5db03c7b54 100644
--- a/webrtc/audio/audio_receive_stream.h
+++ b/webrtc/audio/audio_receive_stream.h
@@ -12,23 +12,22 @@
 #define WEBRTC_AUDIO_AUDIO_RECEIVE_STREAM_H_
 
 #include "webrtc/audio_receive_stream.h"
-#include "webrtc/audio/scoped_voe_interface.h"
 #include "webrtc/base/thread_checker.h"
 #include "webrtc/modules/rtp_rtcp/interface/rtp_header_parser.h"
-#include "webrtc/voice_engine/include/voe_base.h"
 
 namespace webrtc {
 
 class RemoteBitrateEstimator;
-class VoiceEngine;
 
 namespace internal {
 
+class AudioState;
+
 class AudioReceiveStream final : public webrtc::AudioReceiveStream {
  public:
   AudioReceiveStream(RemoteBitrateEstimator* remote_bitrate_estimator,
                      const webrtc::AudioReceiveStream::Config& config,
-                     VoiceEngine* voice_engine);
+                     AudioState* audio_state);
   ~AudioReceiveStream() override;
 
   // webrtc::ReceiveStream implementation.
@@ -49,9 +48,7 @@ class AudioReceiveStream final : public webrtc::AudioReceiveStream {
   rtc::ThreadChecker thread_checker_;
   RemoteBitrateEstimator* const remote_bitrate_estimator_;
   const webrtc::AudioReceiveStream::Config config_;
-  VoiceEngine* voice_engine_;
-  // We hold one interface pointer to the VoE to make sure it is kept alive.
-  ScopedVoEInterface<VoEBase> voe_base_;
+  AudioState* audio_state_;
   rtc::scoped_ptr<RtpHeaderParser> rtp_header_parser_;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(AudioReceiveStream);