Revert of Implement AudioReceiveStream::GetStats(). (patchset #19 id:360001 of https://codereview.webrtc.org/1390753002/ )

Reason for revert:
webrtc_perf_tests started failing on Win32 Release, Mac32 Release and Linux64 Release (all running large tests). These were not caught by try bots.

Original issue's description:
> Implement AudioReceiveStream::GetStats().
>
> R=tommi@webrtc.org
> TBR=hta@webrtc.org
> BUG=webrtc:4690
>
> Committed: https://chromium.googlesource.com/external/webrtc/+/a457752f4afc496ed7f4d6b584b08d8635f18cc0

TBR=tommi@webrtc.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:4690

Review URL: https://codereview.webrtc.org/1411083006

Cr-Commit-Position: refs/heads/master@{#10340}
diff --git a/talk/media/webrtc/fakewebrtccall.cc b/talk/media/webrtc/fakewebrtccall.cc
index 399ab13..a0386b0 100644
--- a/talk/media/webrtc/fakewebrtccall.cc
+++ b/talk/media/webrtc/fakewebrtccall.cc
@@ -40,16 +40,15 @@
   RTC_DCHECK(config.voe_channel_id != -1);
 }
 
+webrtc::AudioReceiveStream::Stats FakeAudioReceiveStream::GetStats() const {
+  return webrtc::AudioReceiveStream::Stats();
+}
+
 const webrtc::AudioReceiveStream::Config&
     FakeAudioReceiveStream::GetConfig() const {
   return config_;
 }
 
-void FakeAudioReceiveStream::SetStats(
-    const webrtc::AudioReceiveStream::Stats& stats) {
-  stats_ = stats;
-}
-
 void FakeAudioReceiveStream::IncrementReceivedPackets() {
   received_packets_++;
 }
diff --git a/talk/media/webrtc/fakewebrtccall.h b/talk/media/webrtc/fakewebrtccall.h
index 0ec854f..fb271f2 100644
--- a/talk/media/webrtc/fakewebrtccall.h
+++ b/talk/media/webrtc/fakewebrtccall.h
@@ -42,8 +42,11 @@
   explicit FakeAudioReceiveStream(
       const webrtc::AudioReceiveStream::Config& config);
 
+  // webrtc::AudioReceiveStream implementation.
+  webrtc::AudioReceiveStream::Stats GetStats() const override;
+
   const webrtc::AudioReceiveStream::Config& GetConfig() const;
-  void SetStats(const webrtc::AudioReceiveStream::Stats& stats);
+
   int received_packets() const { return received_packets_; }
   void IncrementReceivedPackets();
 
@@ -61,13 +64,7 @@
     return true;
   }
 
-  // webrtc::AudioReceiveStream implementation.
-  webrtc::AudioReceiveStream::Stats GetStats() const override {
-    return stats_;
-  }
-
   webrtc::AudioReceiveStream::Config config_;
-  webrtc::AudioReceiveStream::Stats stats_;
   int received_packets_;
 };
 
diff --git a/talk/media/webrtc/fakewebrtcvoiceengine.h b/talk/media/webrtc/fakewebrtcvoiceengine.h
index 9b91327..1167b6b 100644
--- a/talk/media/webrtc/fakewebrtcvoiceengine.h
+++ b/talk/media/webrtc/fakewebrtcvoiceengine.h
@@ -65,6 +65,25 @@
 static const int kOpusBandwidthSwb = 12000;
 static const int kOpusBandwidthFb = 20000;
 
+static const webrtc::NetworkStatistics kNetStats = {
+    1,  // uint16_t currentBufferSize;
+    2,  // uint16_t preferredBufferSize;
+    true,  // bool jitterPeaksFound;
+    1234,  // uint16_t currentPacketLossRate;
+    567,   // uint16_t currentDiscardRate;
+    8901,  // uint16_t currentExpandRate;
+    234,  // uint16_t currentSpeechExpandRate;
+    5678, // uint16_t currentPreemptiveRate;
+    9012, // uint16_t currentAccelerateRate;
+    3456, // uint16_t currentSecondaryDecodedRate;
+    7890, // int32_t clockDriftPPM;
+    54,  // meanWaitingTimeMs;
+    32,  // int medianWaitingTimeMs;
+    1,  // int minWaitingTimeMs;
+    98, // int maxWaitingTimeMs;
+    7654,  // int addedSamples;
+};  // These random but non-trivial numbers are used for testing.
+
 #define WEBRTC_CHECK_CHANNEL(channel) \
   if (channels_.find(channel) == channels_.end()) return -1;
 
@@ -162,9 +181,9 @@
 class FakeWebRtcVoiceEngine
     : public webrtc::VoEAudioProcessing,
       public webrtc::VoEBase, public webrtc::VoECodec, public webrtc::VoEDtmf,
-      public webrtc::VoEHardware,
+      public webrtc::VoEHardware, public webrtc::VoENetEqStats,
       public webrtc::VoENetwork, public webrtc::VoERTP_RTCP,
-      public webrtc::VoEVolumeControl {
+      public webrtc::VoEVideoSync, public webrtc::VoEVolumeControl {
  public:
   struct DtmfInfo {
     DtmfInfo()
@@ -508,7 +527,26 @@
     return 0;
   }
   WEBRTC_STUB(SetBitRate, (int channel, int bitrate_bps));
-  WEBRTC_STUB(GetRecCodec, (int channel, webrtc::CodecInst& codec));
+  WEBRTC_FUNC(GetRecCodec, (int channel, webrtc::CodecInst& codec)) {
+    WEBRTC_CHECK_CHANNEL(channel);
+    const Channel* c = channels_[channel];
+    for (std::list<std::string>::const_iterator it_packet = c->packets.begin();
+        it_packet != c->packets.end(); ++it_packet) {
+      int pltype;
+      if (!GetRtpPayloadType(it_packet->data(), it_packet->length(), &pltype)) {
+        continue;
+      }
+      for (std::vector<webrtc::CodecInst>::const_iterator it_codec =
+          c->recv_codecs.begin(); it_codec != c->recv_codecs.end();
+          ++it_codec) {
+        if (it_codec->pltype == pltype) {
+          codec = *it_codec;
+          return 0;
+        }
+      }
+    }
+    return -1;
+  }
   WEBRTC_FUNC(SetRecPayloadType, (int channel,
                                   const webrtc::CodecInst& codec)) {
     WEBRTC_CHECK_CHANNEL(channel);
@@ -687,6 +725,20 @@
   WEBRTC_STUB(EnableBuiltInNS, (bool enable));
   virtual bool BuiltInNSIsAvailable() const { return false; }
 
+  // webrtc::VoENetEqStats
+  WEBRTC_FUNC(GetNetworkStatistics, (int channel,
+                                     webrtc::NetworkStatistics& ns)) {
+    WEBRTC_CHECK_CHANNEL(channel);
+    memcpy(&ns, &kNetStats, sizeof(webrtc::NetworkStatistics));
+    return 0;
+  }
+
+  WEBRTC_FUNC_CONST(GetDecodingCallStatistics, (int channel,
+      webrtc::AudioDecodingCallStats*)) {
+    WEBRTC_CHECK_CHANNEL(channel);
+    return 0;
+  }
+
   // webrtc::VoENetwork
   WEBRTC_FUNC(RegisterExternalTransport, (int channel,
                                           webrtc::Transport& transport)) {
@@ -835,6 +887,18 @@
     return 0;
   }
 
+  // webrtc::VoEVideoSync
+  WEBRTC_STUB(GetPlayoutBufferSize, (int& bufferMs));
+  WEBRTC_STUB(GetPlayoutTimestamp, (int channel, unsigned int& timestamp));
+  WEBRTC_STUB(GetRtpRtcp, (int, webrtc::RtpRtcp**, webrtc::RtpReceiver**));
+  WEBRTC_STUB(SetInitTimestamp, (int channel, unsigned int timestamp));
+  WEBRTC_STUB(SetInitSequenceNumber, (int channel, short sequenceNumber));
+  WEBRTC_STUB(SetMinimumPlayoutDelay, (int channel, int delayMs));
+  WEBRTC_STUB(SetInitialPlayoutDelay, (int channel, int delay_ms));
+  WEBRTC_STUB(GetDelayEstimate, (int channel, int* jitter_buffer_delay_ms,
+                                 int* playout_buffer_delay_ms));
+  WEBRTC_STUB_CONST(GetLeastRequiredDelayMs, (int channel));
+
   // webrtc::VoEVolumeControl
   WEBRTC_STUB(SetSpeakerVolume, (unsigned int));
   WEBRTC_STUB(GetSpeakerVolume, (unsigned int&));
diff --git a/talk/media/webrtc/webrtcvoe.h b/talk/media/webrtc/webrtcvoe.h
index db6a64a..844831f 100644
--- a/talk/media/webrtc/webrtcvoe.h
+++ b/talk/media/webrtc/webrtcvoe.h
@@ -38,9 +38,13 @@
 #include "webrtc/voice_engine/include/voe_codec.h"
 #include "webrtc/voice_engine/include/voe_dtmf.h"
 #include "webrtc/voice_engine/include/voe_errors.h"
+#include "webrtc/voice_engine/include/voe_external_media.h"
+#include "webrtc/voice_engine/include/voe_file.h"
 #include "webrtc/voice_engine/include/voe_hardware.h"
+#include "webrtc/voice_engine/include/voe_neteq_stats.h"
 #include "webrtc/voice_engine/include/voe_network.h"
 #include "webrtc/voice_engine/include/voe_rtp_rtcp.h"
+#include "webrtc/voice_engine/include/voe_video_sync.h"
 #include "webrtc/voice_engine/include/voe_volume_control.h"
 
 namespace cricket {
@@ -92,16 +96,18 @@
   VoEWrapper()
       : engine_(webrtc::VoiceEngine::Create()), processing_(engine_),
         base_(engine_), codec_(engine_), dtmf_(engine_),
-        hw_(engine_), network_(engine_),
-        rtp_(engine_), volume_(engine_) {
+        hw_(engine_), neteq_(engine_), network_(engine_),
+        rtp_(engine_), sync_(engine_), volume_(engine_) {
   }
   VoEWrapper(webrtc::VoEAudioProcessing* processing,
              webrtc::VoEBase* base,
              webrtc::VoECodec* codec,
              webrtc::VoEDtmf* dtmf,
              webrtc::VoEHardware* hw,
+             webrtc::VoENetEqStats* neteq,
              webrtc::VoENetwork* network,
              webrtc::VoERTP_RTCP* rtp,
+             webrtc::VoEVideoSync* sync,
              webrtc::VoEVolumeControl* volume)
       : engine_(NULL),
         processing_(processing),
@@ -109,8 +115,10 @@
         codec_(codec),
         dtmf_(dtmf),
         hw_(hw),
+        neteq_(neteq),
         network_(network),
         rtp_(rtp),
+        sync_(sync),
         volume_(volume) {
   }
   ~VoEWrapper() {}
@@ -120,8 +128,10 @@
   webrtc::VoECodec* codec() const { return codec_.get(); }
   webrtc::VoEDtmf* dtmf() const { return dtmf_.get(); }
   webrtc::VoEHardware* hw() const { return hw_.get(); }
+  webrtc::VoENetEqStats* neteq() const { return neteq_.get(); }
   webrtc::VoENetwork* network() const { return network_.get(); }
   webrtc::VoERTP_RTCP* rtp() const { return rtp_.get(); }
+  webrtc::VoEVideoSync* sync() const { return sync_.get(); }
   webrtc::VoEVolumeControl* volume() const { return volume_.get(); }
   int error() { return base_->LastError(); }
 
@@ -132,8 +142,10 @@
   scoped_voe_ptr<webrtc::VoECodec> codec_;
   scoped_voe_ptr<webrtc::VoEDtmf> dtmf_;
   scoped_voe_ptr<webrtc::VoEHardware> hw_;
+  scoped_voe_ptr<webrtc::VoENetEqStats> neteq_;
   scoped_voe_ptr<webrtc::VoENetwork> network_;
   scoped_voe_ptr<webrtc::VoERTP_RTCP> rtp_;
+  scoped_voe_ptr<webrtc::VoEVideoSync> sync_;
   scoped_voe_ptr<webrtc::VoEVolumeControl> volume_;
 };
 
diff --git a/talk/media/webrtc/webrtcvoiceengine.cc b/talk/media/webrtc/webrtcvoiceengine.cc
index d880e4b..2a3df2d 100644
--- a/talk/media/webrtc/webrtcvoiceengine.cc
+++ b/talk/media/webrtc/webrtcvoiceengine.cc
@@ -2694,6 +2694,11 @@
     }
   }
 
+  webrtc::CallStatistics cs;
+  unsigned int ssrc;
+  webrtc::CodecInst codec;
+  unsigned int level;
+
   for (const auto& ch : send_channels_) {
     const int channel = ch.second->channel();
 
@@ -2701,8 +2706,6 @@
     // remote side told us it got from its RTCP report.
     VoiceSenderInfo sinfo;
 
-    webrtc::CallStatistics cs = {0};
-    unsigned int ssrc = 0;
     if (engine()->voe()->rtp()->GetRTCPStatistics(channel, cs) == -1 ||
         engine()->voe()->rtp()->GetLocalSSRC(channel, ssrc) == -1) {
       continue;
@@ -2723,7 +2726,6 @@
     sinfo.packets_lost = -1;
     sinfo.ext_seqnum = -1;
     std::vector<webrtc::ReportBlock> receive_blocks;
-    webrtc::CodecInst codec = {0};
     if (engine()->voe()->rtp()->GetRemoteRTCPReportBlocks(
             channel, &receive_blocks) != -1 &&
         engine()->voe()->codec()->GetSendCodec(channel, codec) != -1) {
@@ -2744,7 +2746,6 @@
     }
 
     // Local speech level.
-    unsigned int level = 0;
     sinfo.audio_level = (engine()->voe()->volume()->
         GetSpeechInputLevelFullRange(level) != -1) ? level : -1;
 
@@ -2765,36 +2766,76 @@
   }
 
   // Get the SSRC and stats for each receiver.
-  info->receivers.clear();
-  for (const auto& stream : receive_streams_) {
-    webrtc::AudioReceiveStream::Stats stats = stream.second->GetStats();
-    VoiceReceiverInfo rinfo;
-    rinfo.add_ssrc(stats.remote_ssrc);
-    rinfo.bytes_rcvd = stats.bytes_rcvd;
-    rinfo.packets_rcvd = stats.packets_rcvd;
-    rinfo.packets_lost = stats.packets_lost;
-    rinfo.fraction_lost = stats.fraction_lost;
-    rinfo.codec_name = stats.codec_name;
-    rinfo.ext_seqnum = stats.ext_seqnum;
-    rinfo.jitter_ms = stats.jitter_ms;
-    rinfo.jitter_buffer_ms = stats.jitter_buffer_ms;
-    rinfo.jitter_buffer_preferred_ms = stats.jitter_buffer_preferred_ms;
-    rinfo.delay_estimate_ms = stats.delay_estimate_ms;
-    rinfo.audio_level = stats.audio_level;
-    rinfo.expand_rate = stats.expand_rate;
-    rinfo.speech_expand_rate = stats.speech_expand_rate;
-    rinfo.secondary_decoded_rate = stats.secondary_decoded_rate;
-    rinfo.accelerate_rate = stats.accelerate_rate;
-    rinfo.preemptive_expand_rate = stats.preemptive_expand_rate;
-    rinfo.decoding_calls_to_silence_generator =
-        stats.decoding_calls_to_silence_generator;
-    rinfo.decoding_calls_to_neteq = stats.decoding_calls_to_neteq;
-    rinfo.decoding_normal = stats.decoding_normal;
-    rinfo.decoding_plc = stats.decoding_plc;
-    rinfo.decoding_cng = stats.decoding_cng;
-    rinfo.decoding_plc_cng = stats.decoding_plc_cng;
-    rinfo.capture_start_ntp_time_ms = stats.capture_start_ntp_time_ms;
-    info->receivers.push_back(rinfo);
+  for (const auto& ch : receive_channels_) {
+    int ch_id = ch.second->channel();
+    memset(&cs, 0, sizeof(cs));
+    if (engine()->voe()->rtp()->GetRemoteSSRC(ch_id, ssrc) != -1 &&
+        engine()->voe()->rtp()->GetRTCPStatistics(ch_id, cs) != -1 &&
+        engine()->voe()->codec()->GetRecCodec(ch_id, codec) != -1) {
+      VoiceReceiverInfo rinfo;
+      rinfo.add_ssrc(ssrc);
+      rinfo.bytes_rcvd = cs.bytesReceived;
+      rinfo.packets_rcvd = cs.packetsReceived;
+      // The next four fields are from the most recently sent RTCP report.
+      // Convert Q8 to floating point.
+      rinfo.fraction_lost = static_cast<float>(cs.fractionLost) / (1 << 8);
+      rinfo.packets_lost = cs.cumulativeLost;
+      rinfo.ext_seqnum = cs.extendedMax;
+      rinfo.capture_start_ntp_time_ms = cs.capture_start_ntp_time_ms_;
+      if (codec.pltype != -1) {
+        rinfo.codec_name = codec.plname;
+      }
+      // Convert samples to milliseconds.
+      if (codec.plfreq / 1000 > 0) {
+        rinfo.jitter_ms = cs.jitterSamples / (codec.plfreq / 1000);
+      }
+
+      // Get jitter buffer and total delay (alg + jitter + playout) stats.
+      webrtc::NetworkStatistics ns;
+      if (engine()->voe()->neteq() &&
+          engine()->voe()->neteq()->GetNetworkStatistics(
+              ch_id, ns) != -1) {
+        rinfo.jitter_buffer_ms = ns.currentBufferSize;
+        rinfo.jitter_buffer_preferred_ms = ns.preferredBufferSize;
+        rinfo.expand_rate =
+            static_cast<float>(ns.currentExpandRate) / (1 << 14);
+        rinfo.speech_expand_rate =
+            static_cast<float>(ns.currentSpeechExpandRate) / (1 << 14);
+        rinfo.secondary_decoded_rate =
+            static_cast<float>(ns.currentSecondaryDecodedRate) / (1 << 14);
+        rinfo.accelerate_rate =
+            static_cast<float>(ns.currentAccelerateRate) / (1 << 14);
+        rinfo.preemptive_expand_rate =
+            static_cast<float>(ns.currentPreemptiveRate) / (1 << 14);
+      }
+
+      webrtc::AudioDecodingCallStats ds;
+      if (engine()->voe()->neteq() &&
+          engine()->voe()->neteq()->GetDecodingCallStatistics(
+              ch_id, &ds) != -1) {
+        rinfo.decoding_calls_to_silence_generator =
+            ds.calls_to_silence_generator;
+        rinfo.decoding_calls_to_neteq = ds.calls_to_neteq;
+        rinfo.decoding_normal = ds.decoded_normal;
+        rinfo.decoding_plc = ds.decoded_plc;
+        rinfo.decoding_cng = ds.decoded_cng;
+        rinfo.decoding_plc_cng = ds.decoded_plc_cng;
+      }
+
+      if (engine()->voe()->sync()) {
+        int jitter_buffer_delay_ms = 0;
+        int playout_buffer_delay_ms = 0;
+        engine()->voe()->sync()->GetDelayEstimate(
+            ch_id, &jitter_buffer_delay_ms, &playout_buffer_delay_ms);
+        rinfo.delay_estimate_ms = jitter_buffer_delay_ms +
+            playout_buffer_delay_ms;
+      }
+
+      // Get speech level.
+      rinfo.audio_level = (engine()->voe()->volume()->
+          GetSpeechOutputLevelFullRange(ch_id, level) != -1) ? level : -1;
+      info->receivers.push_back(rinfo);
+    }
   }
 
   return true;
diff --git a/talk/media/webrtc/webrtcvoiceengine_unittest.cc b/talk/media/webrtc/webrtcvoiceengine_unittest.cc
index 491af19..b0fc2bb 100644
--- a/talk/media/webrtc/webrtcvoiceengine_unittest.cc
+++ b/talk/media/webrtc/webrtcvoiceengine_unittest.cc
@@ -38,27 +38,27 @@
 #include "webrtc/p2p/base/faketransportcontroller.h"
 #include "talk/session/media/channel.h"
 
+// Tests for the WebRtcVoiceEngine/VoiceChannel code.
+
 using cricket::kRtpAudioLevelHeaderExtension;
 using cricket::kRtpAbsoluteSenderTimeHeaderExtension;
 
-namespace {
-
-const cricket::AudioCodec kPcmuCodec(0, "PCMU", 8000, 64000, 1, 0);
-const cricket::AudioCodec kIsacCodec(103, "ISAC", 16000, 32000, 1, 0);
-const cricket::AudioCodec kOpusCodec(111, "opus", 48000, 64000, 2, 0);
-const cricket::AudioCodec kG722CodecVoE(9, "G722", 16000, 64000, 1, 0);
-const cricket::AudioCodec kG722CodecSdp(9, "G722", 8000, 64000, 1, 0);
-const cricket::AudioCodec kRedCodec(117, "red", 8000, 0, 1, 0);
-const cricket::AudioCodec kCn8000Codec(13, "CN", 8000, 0, 1, 0);
-const cricket::AudioCodec kCn16000Codec(105, "CN", 16000, 0, 1, 0);
-const cricket::AudioCodec kTelephoneEventCodec(106, "telephone-event", 8000, 0,
-                                               1, 0);
-const cricket::AudioCodec* const kAudioCodecs[] = {
+static const cricket::AudioCodec kPcmuCodec(0, "PCMU", 8000, 64000, 1, 0);
+static const cricket::AudioCodec kIsacCodec(103, "ISAC", 16000, 32000, 1, 0);
+static const cricket::AudioCodec kOpusCodec(111, "opus", 48000, 64000, 2, 0);
+static const cricket::AudioCodec kG722CodecVoE(9, "G722", 16000, 64000, 1, 0);
+static const cricket::AudioCodec kG722CodecSdp(9, "G722", 8000, 64000, 1, 0);
+static const cricket::AudioCodec kRedCodec(117, "red", 8000, 0, 1, 0);
+static const cricket::AudioCodec kCn8000Codec(13, "CN", 8000, 0, 1, 0);
+static const cricket::AudioCodec kCn16000Codec(105, "CN", 16000, 0, 1, 0);
+static const cricket::AudioCodec
+    kTelephoneEventCodec(106, "telephone-event", 8000, 0, 1, 0);
+static const cricket::AudioCodec* const kAudioCodecs[] = {
     &kPcmuCodec, &kIsacCodec, &kOpusCodec, &kG722CodecVoE, &kRedCodec,
     &kCn8000Codec, &kCn16000Codec, &kTelephoneEventCodec,
 };
-const uint32_t kSsrc1 = 0x99;
-const uint32_t kSsrc2 = 0x98;
+static uint32_t kSsrc1 = 0x99;
+static uint32_t kSsrc2 = 0x98;
 
 class FakeVoEWrapper : public cricket::VoEWrapper {
  public:
@@ -68,8 +68,10 @@
                             engine,  // codec
                             engine,  // dtmf
                             engine,  // hw
+                            engine,  // neteq
                             engine,  // network
                             engine,  // rtp
+                            engine,  // sync
                             engine) {  // volume
   }
 };
@@ -84,7 +86,6 @@
   int SetTraceCallback(webrtc::TraceCallback* callback) override { return 0; }
   unsigned int filter_;
 };
-}  // namespace
 
 class WebRtcVoiceEngineTestFake : public testing::Test {
  public:
@@ -292,71 +293,6 @@
     EXPECT_EQ(-1, voe_.GetReceiveRtpExtensionId(new_channel_num, ext));
   }
 
-  const webrtc::AudioReceiveStream::Stats& GetAudioReceiveStreamStats() const {
-    static webrtc::AudioReceiveStream::Stats stats;
-    if (stats.remote_ssrc == 0) {
-      stats.remote_ssrc = 123;
-      stats.bytes_rcvd = 456;
-      stats.packets_rcvd = 768;
-      stats.packets_lost = 101;
-      stats.fraction_lost = 23.45f;
-      stats.codec_name = "codec_name";
-      stats.ext_seqnum = 678;
-      stats.jitter_ms = 901;
-      stats.jitter_buffer_ms = 234;
-      stats.jitter_buffer_preferred_ms = 567;
-      stats.delay_estimate_ms = 890;
-      stats.audio_level = 1234;
-      stats.expand_rate = 5.67f;
-      stats.speech_expand_rate = 8.90f;
-      stats.secondary_decoded_rate = 1.23f;
-      stats.accelerate_rate = 4.56f;
-      stats.preemptive_expand_rate = 7.89f;
-      stats.decoding_calls_to_silence_generator = 012;
-      stats.decoding_calls_to_neteq = 345;
-      stats.decoding_normal = 67890;
-      stats.decoding_plc = 1234;
-      stats.decoding_cng = 5678;
-      stats.decoding_plc_cng = 9012;
-      stats.capture_start_ntp_time_ms = 3456;
-    }
-    return stats;
-  }
-  void SetAudioReceiveStreamStats() {
-    for (auto* s : call_.GetAudioReceiveStreams()) {
-      s->SetStats(GetAudioReceiveStreamStats());
-    }
-  }
-  void VerifyVoiceReceiverInfo(const cricket::VoiceReceiverInfo& info) {
-    const auto& kStats = GetAudioReceiveStreamStats();
-    EXPECT_EQ(info.local_stats.front().ssrc, kStats.remote_ssrc);
-    EXPECT_EQ(info.bytes_rcvd, kStats.bytes_rcvd);
-    EXPECT_EQ(info.packets_rcvd, kStats.packets_rcvd);
-    EXPECT_EQ(info.packets_lost, kStats.packets_lost);
-    EXPECT_EQ(info.fraction_lost, kStats.fraction_lost);
-    EXPECT_EQ(info.codec_name, kStats.codec_name);
-    EXPECT_EQ(info.ext_seqnum, kStats.ext_seqnum);
-    EXPECT_EQ(info.jitter_ms, kStats.jitter_ms);
-    EXPECT_EQ(info.jitter_buffer_ms, kStats.jitter_buffer_ms);
-    EXPECT_EQ(info.jitter_buffer_preferred_ms,
-              kStats.jitter_buffer_preferred_ms);
-    EXPECT_EQ(info.delay_estimate_ms, kStats.delay_estimate_ms);
-    EXPECT_EQ(info.audio_level, kStats.audio_level);
-    EXPECT_EQ(info.expand_rate, kStats.expand_rate);
-    EXPECT_EQ(info.speech_expand_rate, kStats.speech_expand_rate);
-    EXPECT_EQ(info.secondary_decoded_rate, kStats.secondary_decoded_rate);
-    EXPECT_EQ(info.accelerate_rate, kStats.accelerate_rate);
-    EXPECT_EQ(info.preemptive_expand_rate, kStats.preemptive_expand_rate);
-    EXPECT_EQ(info.decoding_calls_to_silence_generator,
-              kStats.decoding_calls_to_silence_generator);
-    EXPECT_EQ(info.decoding_calls_to_neteq, kStats.decoding_calls_to_neteq);
-    EXPECT_EQ(info.decoding_normal, kStats.decoding_normal);
-    EXPECT_EQ(info.decoding_plc, kStats.decoding_plc);
-    EXPECT_EQ(info.decoding_cng, kStats.decoding_cng);
-    EXPECT_EQ(info.decoding_plc_cng, kStats.decoding_plc_cng);
-    EXPECT_EQ(info.capture_start_ntp_time_ms, kStats.capture_start_ntp_time_ms);
-  }
-
  protected:
   cricket::FakeCall call_;
   cricket::FakeWebRtcVoiceEngine voe_;
@@ -2072,23 +2008,38 @@
     EXPECT_EQ(cricket::kIntStatValue, info.senders[i].jitter_ms);
     EXPECT_EQ(kPcmuCodec.name, info.senders[i].codec_name);
   }
+  EXPECT_EQ(0u, info.receivers.size());
 
-  // We have added one receive stream. We should see empty stats.
-  EXPECT_EQ(info.receivers.size(), 1u);
-  EXPECT_EQ(info.receivers[0].local_stats.front().ssrc, 0);
-
-  // Remove the kSsrc2 stream. No receiver stats.
-  EXPECT_TRUE(channel_->RemoveRecvStream(kSsrc2));
+  // Registered stream's remote SSRC is kSsrc2. Send a packet with SSRC=1.
+  // We should drop the packet and no stats should be available.
+  DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame));
   EXPECT_EQ(true, channel_->GetStats(&info));
   EXPECT_EQ(0u, info.receivers.size());
 
-  // Deliver a new packet - a default receive stream should be created and we
-  // should see stats again.
+  // Remove the kSsrc2 stream and deliver a new packet - a default receive
+  // stream should be created and we should see stats.
+  EXPECT_TRUE(channel_->RemoveRecvStream(kSsrc2));
   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame));
-  SetAudioReceiveStreamStats();
   EXPECT_EQ(true, channel_->GetStats(&info));
   EXPECT_EQ(1u, info.receivers.size());
-  VerifyVoiceReceiverInfo(info.receivers[0]);
+
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].bytes_rcvd);
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].packets_rcvd);
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].packets_lost);
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].ext_seqnum);
+  EXPECT_EQ(kPcmuCodec.name, info.receivers[0].codec_name);
+  EXPECT_EQ(static_cast<float>(cricket::kNetStats.currentExpandRate) /
+      (1 << 14), info.receivers[0].expand_rate);
+  EXPECT_EQ(static_cast<float>(cricket::kNetStats.currentSpeechExpandRate) /
+      (1 << 14), info.receivers[0].speech_expand_rate);
+  EXPECT_EQ(static_cast<float>(cricket::kNetStats.currentSecondaryDecodedRate) /
+      (1 << 14), info.receivers[0].secondary_decoded_rate);
+  EXPECT_EQ(
+      static_cast<float>(cricket::kNetStats.currentAccelerateRate) / (1 << 14),
+      info.receivers[0].accelerate_rate);
+  EXPECT_EQ(
+      static_cast<float>(cricket::kNetStats.currentPreemptiveRate) / (1 << 14),
+      info.receivers[0].preemptive_expand_rate);
 }
 
 // Test that we can add and remove receive streams, and do proper send/playout.
@@ -2349,22 +2300,33 @@
   // EXPECT_EQ(cricket::kIntStatValue, info.senders[0].echo_return_loss);
   // EXPECT_EQ(cricket::kIntStatValue,
   //           info.senders[0].echo_return_loss_enhancement);
-  // We have added one receive stream. We should see empty stats.
-  EXPECT_EQ(info.receivers.size(), 1u);
-  EXPECT_EQ(info.receivers[0].local_stats.front().ssrc, 0);
+  EXPECT_EQ(0u, info.receivers.size());
 
-  // Remove the kSsrc2 stream. No receiver stats.
-  EXPECT_TRUE(channel_->RemoveRecvStream(kSsrc2));
+  // Registered stream's remote SSRC is kSsrc2. Send a packet with SSRC=1.
+  // We should drop the packet and no stats should be available.
+  DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame));
   EXPECT_EQ(true, channel_->GetStats(&info));
   EXPECT_EQ(0u, info.receivers.size());
 
-  // Deliver a new packet - a default receive stream should be created and we
-  // should see stats again.
+  // Remove the kSsrc2 stream and deliver a new packet - a default receive
+  // stream should be created and we should see stats.
+  EXPECT_TRUE(channel_->RemoveRecvStream(kSsrc2));
   DeliverPacket(kPcmuFrame, sizeof(kPcmuFrame));
-  SetAudioReceiveStreamStats();
   EXPECT_EQ(true, channel_->GetStats(&info));
   EXPECT_EQ(1u, info.receivers.size());
-  VerifyVoiceReceiverInfo(info.receivers[0]);
+
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].bytes_rcvd);
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].packets_rcvd);
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].packets_lost);
+  EXPECT_EQ(cricket::kIntStatValue, info.receivers[0].ext_seqnum);
+  EXPECT_EQ(kPcmuCodec.name, info.receivers[0].codec_name);
+  EXPECT_EQ(static_cast<float>(cricket::kNetStats.currentExpandRate) /
+      (1 << 14), info.receivers[0].expand_rate);
+  EXPECT_EQ(static_cast<float>(cricket::kNetStats.currentSpeechExpandRate) /
+      (1 << 14), info.receivers[0].speech_expand_rate);
+  EXPECT_EQ(static_cast<float>(cricket::kNetStats.currentSecondaryDecodedRate) /
+      (1 << 14), info.receivers[0].secondary_decoded_rate);
+  // TODO(sriniv): Add testing for more receiver fields.
 }
 
 // Test that we can set the outgoing SSRC properly with multiple streams.
diff --git a/webrtc/audio/BUILD.gn b/webrtc/audio/BUILD.gn
index d5061db..c6f4b6b 100644
--- a/webrtc/audio/BUILD.gn
+++ b/webrtc/audio/BUILD.gn
@@ -14,8 +14,6 @@
     "audio_receive_stream.h",
     "audio_send_stream.cc",
     "audio_send_stream.h",
-    "conversion.h",
-    "scoped_voe_interface.h",
   ]
 
   configs += [ "..:common_config" ]
diff --git a/webrtc/audio/audio_receive_stream.cc b/webrtc/audio/audio_receive_stream.cc
index 0fd96d0..c725e37 100644
--- a/webrtc/audio/audio_receive_stream.cc
+++ b/webrtc/audio/audio_receive_stream.cc
@@ -12,17 +12,10 @@
 
 #include <string>
 
-#include "webrtc/audio/conversion.h"
 #include "webrtc/base/checks.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
 #include "webrtc/system_wrappers/interface/tick_util.h"
-#include "webrtc/voice_engine/include/voe_base.h"
-#include "webrtc/voice_engine/include/voe_codec.h"
-#include "webrtc/voice_engine/include/voe_neteq_stats.h"
-#include "webrtc/voice_engine/include/voe_rtp_rtcp.h"
-#include "webrtc/voice_engine/include/voe_video_sync.h"
-#include "webrtc/voice_engine/include/voe_volume_control.h"
 
 namespace webrtc {
 std::string AudioReceiveStream::Config::Rtp::ToString() const {
@@ -31,9 +24,8 @@
   ss << ", extensions: [";
   for (size_t i = 0; i < extensions.size(); ++i) {
     ss << extensions[i].ToString();
-    if (i != extensions.size() - 1) {
+    if (i != extensions.size() - 1)
       ss << ", ";
-    }
   }
   ss << ']';
   ss << '}';
@@ -44,9 +36,8 @@
   std::stringstream ss;
   ss << "{rtp: " << rtp.ToString();
   ss << ", voe_channel_id: " << voe_channel_id;
-  if (!sync_group.empty()) {
+  if (!sync_group.empty())
     ss << ", sync_group: " << sync_group;
-  }
   ss << '}';
   return ss.str();
 }
@@ -54,18 +45,13 @@
 namespace internal {
 AudioReceiveStream::AudioReceiveStream(
       RemoteBitrateEstimator* remote_bitrate_estimator,
-      const webrtc::AudioReceiveStream::Config& config,
-      VoiceEngine* voice_engine)
+      const webrtc::AudioReceiveStream::Config& config)
     : remote_bitrate_estimator_(remote_bitrate_estimator),
       config_(config),
-      voice_engine_(voice_engine),
-      voe_base_(voice_engine),
       rtp_header_parser_(RtpHeaderParser::Create()) {
-  RTC_DCHECK(thread_checker_.CalledOnValidThread());
   LOG(LS_INFO) << "AudioReceiveStream: " << config_.ToString();
   RTC_DCHECK(config.voe_channel_id != -1);
   RTC_DCHECK(remote_bitrate_estimator_ != nullptr);
-  RTC_DCHECK(voice_engine_ != nullptr);
   RTC_DCHECK(rtp_header_parser_ != nullptr);
   for (const auto& ext : config.rtp.extensions) {
     // One-byte-extension local identifiers are in the range 1-14 inclusive.
@@ -87,117 +73,33 @@
 }
 
 AudioReceiveStream::~AudioReceiveStream() {
-  RTC_DCHECK(thread_checker_.CalledOnValidThread());
   LOG(LS_INFO) << "~AudioReceiveStream: " << config_.ToString();
 }
 
 webrtc::AudioReceiveStream::Stats AudioReceiveStream::GetStats() const {
-  RTC_DCHECK(thread_checker_.CalledOnValidThread());
-  webrtc::AudioReceiveStream::Stats stats;
-  stats.remote_ssrc = config_.rtp.remote_ssrc;
-  ScopedVoEInterface<VoECodec> codec(voice_engine_);
-  ScopedVoEInterface<VoENetEqStats> neteq(voice_engine_);
-  ScopedVoEInterface<VoERTP_RTCP> rtp(voice_engine_);
-  ScopedVoEInterface<VoEVideoSync> sync(voice_engine_);
-  ScopedVoEInterface<VoEVolumeControl> volume(voice_engine_);
-  unsigned int ssrc = 0;
-  webrtc::CallStatistics cs = {0};
-  webrtc::CodecInst ci = {0};
-  // Only collect stats if we have seen some traffic with the SSRC.
-  if (rtp->GetRemoteSSRC(config_.voe_channel_id, ssrc) == -1 ||
-      rtp->GetRTCPStatistics(config_.voe_channel_id, cs) == -1 ||
-      codec->GetRecCodec(config_.voe_channel_id, ci) == -1) {
-    return stats;
-  }
-
-  stats.bytes_rcvd = cs.bytesReceived;
-  stats.packets_rcvd = cs.packetsReceived;
-  stats.packets_lost = cs.cumulativeLost;
-  stats.fraction_lost = static_cast<float>(cs.fractionLost) / (1 << 8);
-  if (ci.pltype != -1) {
-    stats.codec_name = ci.plname;
-  }
-
-  stats.ext_seqnum = cs.extendedMax;
-  if (ci.plfreq / 1000 > 0) {
-    stats.jitter_ms = cs.jitterSamples / (ci.plfreq / 1000);
-  }
-  {
-    int jitter_buffer_delay_ms = 0;
-    int playout_buffer_delay_ms = 0;
-    sync->GetDelayEstimate(config_.voe_channel_id, &jitter_buffer_delay_ms,
-                           &playout_buffer_delay_ms);
-    stats.delay_estimate_ms =
-        jitter_buffer_delay_ms + playout_buffer_delay_ms;
-  }
-  {
-    unsigned int level = 0;
-    if (volume->GetSpeechOutputLevelFullRange(config_.voe_channel_id, level)
-        != -1) {
-      stats.audio_level = static_cast<int32_t>(level);
-    }
-  }
-
-  webrtc::NetworkStatistics ns = {0};
-  if (neteq->GetNetworkStatistics(config_.voe_channel_id, ns) != -1) {
-    // Get jitter buffer and total delay (alg + jitter + playout) stats.
-    stats.jitter_buffer_ms = ns.currentBufferSize;
-    stats.jitter_buffer_preferred_ms = ns.preferredBufferSize;
-    stats.expand_rate = Q14ToFloat(ns.currentExpandRate);
-    stats.speech_expand_rate = Q14ToFloat(ns.currentSpeechExpandRate);
-    stats.secondary_decoded_rate = Q14ToFloat(ns.currentSecondaryDecodedRate);
-    stats.accelerate_rate = Q14ToFloat(ns.currentAccelerateRate);
-    stats.preemptive_expand_rate = Q14ToFloat(ns.currentPreemptiveRate);
-  }
-
-  webrtc::AudioDecodingCallStats ds;
-  if (neteq->GetDecodingCallStatistics(config_.voe_channel_id, &ds) != -1) {
-    stats.decoding_calls_to_silence_generator =
-        ds.calls_to_silence_generator;
-    stats.decoding_calls_to_neteq = ds.calls_to_neteq;
-    stats.decoding_normal = ds.decoded_normal;
-    stats.decoding_plc = ds.decoded_plc;
-    stats.decoding_cng = ds.decoded_cng;
-    stats.decoding_plc_cng = ds.decoded_plc_cng;
-  }
-
-  stats.capture_start_ntp_time_ms = cs.capture_start_ntp_time_ms_;
-
-  return stats;
+  return webrtc::AudioReceiveStream::Stats();
 }
 
 const webrtc::AudioReceiveStream::Config& AudioReceiveStream::config() const {
-  RTC_DCHECK(thread_checker_.CalledOnValidThread());
   return config_;
 }
 
 void AudioReceiveStream::Start() {
-  RTC_DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 void AudioReceiveStream::Stop() {
-  RTC_DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 void AudioReceiveStream::SignalNetworkState(NetworkState state) {
-  RTC_DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 bool AudioReceiveStream::DeliverRtcp(const uint8_t* packet, size_t length) {
-  // TODO(solenberg): Tests call this function on a network thread, libjingle
-  // calls on the worker thread. We should move towards always using a network
-  // thread. Then this check can be enabled.
-  // RTC_DCHECK(!thread_checker_.CalledOnValidThread());
   return false;
 }
 
 bool AudioReceiveStream::DeliverRtp(const uint8_t* packet,
                                     size_t length,
                                     const PacketTime& packet_time) {
-  // TODO(solenberg): Tests call this function on a network thread, libjingle
-  // calls on the worker thread. We should move towards always using a network
-  // thread. Then this check can be enabled.
-  // RTC_DCHECK(!thread_checker_.CalledOnValidThread());
   RTPHeader header;
 
   if (!rtp_header_parser_->Parse(packet, length, &header)) {
diff --git a/webrtc/audio/audio_receive_stream.h b/webrtc/audio/audio_receive_stream.h
index 5c77653..1e52724 100644
--- a/webrtc/audio/audio_receive_stream.h
+++ b/webrtc/audio/audio_receive_stream.h
@@ -12,23 +12,18 @@
 #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 AudioReceiveStream : public webrtc::AudioReceiveStream {
  public:
   AudioReceiveStream(RemoteBitrateEstimator* remote_bitrate_estimator,
-                     const webrtc::AudioReceiveStream::Config& config,
-                     VoiceEngine* voice_engine);
+                     const webrtc::AudioReceiveStream::Config& config);
   ~AudioReceiveStream() override;
 
   // webrtc::ReceiveStream implementation.
@@ -46,12 +41,8 @@
   const webrtc::AudioReceiveStream::Config& config() const;
 
  private:
-  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_;
   rtc::scoped_ptr<RtpHeaderParser> rtp_header_parser_;
 };
 }  // namespace internal
diff --git a/webrtc/audio/audio_receive_stream_unittest.cc b/webrtc/audio/audio_receive_stream_unittest.cc
index 4a1c8c6..d6cce69 100644
--- a/webrtc/audio/audio_receive_stream_unittest.cc
+++ b/webrtc/audio/audio_receive_stream_unittest.cc
@@ -11,14 +11,10 @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 #include "webrtc/audio/audio_receive_stream.h"
-#include "webrtc/audio/conversion.h"
 #include "webrtc/modules/remote_bitrate_estimator/include/mock/mock_remote_bitrate_estimator.h"
 #include "webrtc/modules/rtp_rtcp/source/byte_io.h"
-#include "webrtc/test/fake_voice_engine.h"
 
-namespace {
-
-using webrtc::ByteWriter;
+namespace webrtc {
 
 const size_t kAbsoluteSendTimeLength = 4;
 
@@ -49,28 +45,23 @@
   ByteWriter<uint16_t>::WriteBigEndian(header + 2, 0x1234);  // Sequence number.
   ByteWriter<uint32_t>::WriteBigEndian(header + 4, 0x5678);  // Timestamp.
   ByteWriter<uint32_t>::WriteBigEndian(header + 8, 0x4321);  // SSRC.
-  int32_t rtp_header_length = webrtc::kRtpHeaderSize;
+  int32_t rtp_header_length = kRtpHeaderSize;
 
   BuildAbsoluteSendTimeExtension(header + rtp_header_length, extension_id,
                                  abs_send_time);
   rtp_header_length += kAbsoluteSendTimeLength;
   return rtp_header_length;
 }
-}  // namespace
-
-namespace webrtc {
-namespace test {
 
 TEST(AudioReceiveStreamTest, AudioPacketUpdatesBweWithTimestamp) {
   MockRemoteBitrateEstimator rbe;
-  FakeVoiceEngine fve;
   AudioReceiveStream::Config config;
   config.combined_audio_video_bwe = true;
-  config.voe_channel_id = fve.kReceiveChannelId;
+  config.voe_channel_id = 1;
   const int kAbsSendTimeId = 3;
   config.rtp.extensions.push_back(
       RtpExtension(RtpExtension::kAbsSendTime, kAbsSendTimeId));
-  internal::AudioReceiveStream recv_stream(&rbe, config, &fve);
+  internal::AudioReceiveStream recv_stream(&rbe, config);
   uint8_t rtp_packet[30];
   const int kAbsSendTimeValue = 1234;
   CreateRtpHeaderWithAbsSendTime(rtp_packet, kAbsSendTimeId, kAbsSendTimeValue);
@@ -83,57 +74,4 @@
   EXPECT_TRUE(
       recv_stream.DeliverRtp(rtp_packet, sizeof(rtp_packet), packet_time));
 }
-
-TEST(AudioReceiveStreamTest, GetStats) {
-  const uint32_t kSsrc1 = 667;
-
-  MockRemoteBitrateEstimator rbe;
-  FakeVoiceEngine fve;
-  AudioReceiveStream::Config config;
-  config.rtp.remote_ssrc = kSsrc1;
-  config.voe_channel_id = fve.kReceiveChannelId;
-  internal::AudioReceiveStream recv_stream(&rbe, config, &fve);
-
-  AudioReceiveStream::Stats stats = recv_stream.GetStats();
-  const CallStatistics& call_stats = fve.GetRecvCallStats();
-  const CodecInst& codec_inst = fve.GetRecvRecCodecInst();
-  const NetworkStatistics& net_stats = fve.GetRecvNetworkStats();
-  const AudioDecodingCallStats& decode_stats =
-      fve.GetRecvAudioDecodingCallStats();
-  EXPECT_EQ(kSsrc1, stats.remote_ssrc);
-  EXPECT_EQ(static_cast<int64_t>(call_stats.bytesReceived), stats.bytes_rcvd);
-  EXPECT_EQ(static_cast<uint32_t>(call_stats.packetsReceived),
-            stats.packets_rcvd);
-  EXPECT_EQ(call_stats.cumulativeLost, stats.packets_lost);
-  EXPECT_EQ(static_cast<float>(call_stats.fractionLost) / 256,
-            stats.fraction_lost);
-  EXPECT_EQ(std::string(codec_inst.plname), stats.codec_name);
-  EXPECT_EQ(call_stats.extendedMax, stats.ext_seqnum);
-  EXPECT_EQ(call_stats.jitterSamples / (codec_inst.plfreq / 1000),
-            stats.jitter_ms);
-  EXPECT_EQ(net_stats.currentBufferSize, stats.jitter_buffer_ms);
-  EXPECT_EQ(net_stats.preferredBufferSize, stats.jitter_buffer_preferred_ms);
-  EXPECT_EQ(static_cast<uint32_t>(fve.kRecvJitterBufferDelay +
-      fve.kRecvPlayoutBufferDelay), stats.delay_estimate_ms);
-  EXPECT_EQ(static_cast<int32_t>(fve.kRecvSpeechOutputLevel),
-            stats.audio_level);
-  EXPECT_EQ(Q14ToFloat(net_stats.currentExpandRate), stats.expand_rate);
-  EXPECT_EQ(Q14ToFloat(net_stats.currentSpeechExpandRate),
-            stats.speech_expand_rate);
-  EXPECT_EQ(Q14ToFloat(net_stats.currentSecondaryDecodedRate),
-            stats.secondary_decoded_rate);
-  EXPECT_EQ(Q14ToFloat(net_stats.currentAccelerateRate), stats.accelerate_rate);
-  EXPECT_EQ(Q14ToFloat(net_stats.currentPreemptiveRate),
-            stats.preemptive_expand_rate);
-  EXPECT_EQ(decode_stats.calls_to_silence_generator,
-            stats.decoding_calls_to_silence_generator);
-  EXPECT_EQ(decode_stats.calls_to_neteq, stats.decoding_calls_to_neteq);
-  EXPECT_EQ(decode_stats.decoded_normal, stats.decoding_normal);
-  EXPECT_EQ(decode_stats.decoded_plc, stats.decoding_plc);
-  EXPECT_EQ(decode_stats.decoded_cng, stats.decoding_cng);
-  EXPECT_EQ(decode_stats.decoded_plc_cng, stats.decoding_plc_cng);
-  EXPECT_EQ(call_stats.capture_start_ntp_time_ms_,
-            stats.capture_start_ntp_time_ms);
-}
-}  // namespace test
 }  // namespace webrtc
diff --git a/webrtc/audio/conversion.h b/webrtc/audio/conversion.h
deleted file mode 100644
index 4c0b7aa..0000000
--- a/webrtc/audio/conversion.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- *  Copyright (c) 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_AUDIO_CONVERSION_H_
-#define WEBRTC_AUDIO_CONVERSION_H_
-
-namespace webrtc {
-
-inline float Q14ToFloat(uint16_t v) {
-  return static_cast<float>(v) / (1 << 14);
-}
-}  // namespace webrtc
-
-#endif  // WEBRTC_AUDIO_CONVERSION_H_
diff --git a/webrtc/audio/scoped_voe_interface.h b/webrtc/audio/scoped_voe_interface.h
deleted file mode 100644
index 5a88fc9..0000000
--- a/webrtc/audio/scoped_voe_interface.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- *  Copyright (c) 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_AUDIO_SCOPED_VOE_INTERFACE_H_
-#define WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_
-
-#include "webrtc/base/checks.h"
-
-namespace webrtc {
-
-class VoiceEngine;
-
-namespace internal {
-
-template<class T> class ScopedVoEInterface {
- public:
-  explicit ScopedVoEInterface(webrtc::VoiceEngine* e)
-      : ptr_(T::GetInterface(e)) {
-    RTC_DCHECK(ptr_);
-  }
-  ~ScopedVoEInterface() {
-    if (ptr_) {
-      ptr_->Release();
-    }
-  }
-  T* operator->() {
-    RTC_DCHECK(ptr_);
-    return ptr_;
-  }
- private:
-  T* ptr_;
-};
-}  // namespace internal
-}  // namespace webrtc
-
-#endif  // WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_
diff --git a/webrtc/audio/webrtc_audio.gypi b/webrtc/audio/webrtc_audio.gypi
index b9d45db..40ccff6 100644
--- a/webrtc/audio/webrtc_audio.gypi
+++ b/webrtc/audio/webrtc_audio.gypi
@@ -18,8 +18,6 @@
       'audio/audio_receive_stream.h',
       'audio/audio_send_stream.cc',
       'audio/audio_send_stream.h',
-      'audio/conversion.h',
-      'audio/scoped_voe_interface.h',
     ],
   },
 }
diff --git a/webrtc/audio_receive_stream.h b/webrtc/audio_receive_stream.h
index 3e5a518..70d6480 100644
--- a/webrtc/audio_receive_stream.h
+++ b/webrtc/audio_receive_stream.h
@@ -26,32 +26,7 @@
 
 class AudioReceiveStream : public ReceiveStream {
  public:
-  struct Stats {
-    uint32_t remote_ssrc = 0;
-    int64_t bytes_rcvd = 0;
-    uint32_t packets_rcvd = 0;
-    uint32_t packets_lost = 0;
-    float fraction_lost = 0.0f;
-    std::string codec_name;
-    uint32_t ext_seqnum = 0;
-    uint32_t jitter_ms = 0;
-    uint32_t jitter_buffer_ms = 0;
-    uint32_t jitter_buffer_preferred_ms = 0;
-    uint32_t delay_estimate_ms = 0;
-    int32_t audio_level = -1;
-    float expand_rate = 0.0f;
-    float speech_expand_rate = 0.0f;
-    float secondary_decoded_rate = 0.0f;
-    float accelerate_rate = 0.0f;
-    float preemptive_expand_rate = 0.0f;
-    int32_t decoding_calls_to_silence_generator = 0;
-    int32_t decoding_calls_to_neteq = 0;
-    int32_t decoding_normal = 0;
-    int32_t decoding_plc = 0;
-    int32_t decoding_cng = 0;
-    int32_t decoding_plc_cng = 0;
-    int64_t capture_start_ntp_time_ms = 0;
-  };
+  struct Stats {};
 
   struct Config {
     std::string ToString() const;
diff --git a/webrtc/call/bitrate_estimator_tests.cc b/webrtc/call/bitrate_estimator_tests.cc
index 08e36c8..f7044ae 100644
--- a/webrtc/call/bitrate_estimator_tests.cc
+++ b/webrtc/call/bitrate_estimator_tests.cc
@@ -25,7 +25,6 @@
 #include "webrtc/test/encoder_settings.h"
 #include "webrtc/test/fake_decoder.h"
 #include "webrtc/test/fake_encoder.h"
-#include "webrtc/test/fake_voice_engine.h"
 #include "webrtc/test/frame_generator_capturer.h"
 
 namespace webrtc {
@@ -131,10 +130,8 @@
   }
 
   virtual void SetUp() {
-    Call::Config config;
-    config.voice_engine = &fake_voice_engine_;
-    receiver_call_.reset(Call::Create(config));
-    sender_call_.reset(Call::Create(config));
+    receiver_call_.reset(Call::Create(Call::Config()));
+    sender_call_.reset(Call::Create(Call::Config()));
 
     send_transport_.SetReceiver(receiver_call_->Receiver());
     receive_transport_.SetReceiver(sender_call_->Receiver());
@@ -268,7 +265,6 @@
     test::FakeDecoder fake_decoder_;
   };
 
-  test::FakeVoiceEngine fake_voice_engine_;
   TraceObserver receiver_trace_;
   test::DirectTransport send_transport_;
   test::DirectTransport receive_transport_;
diff --git a/webrtc/call/call.cc b/webrtc/call/call.cc
index a69be98..9a036c9 100644
--- a/webrtc/call/call.cc
+++ b/webrtc/call/call.cc
@@ -123,8 +123,7 @@
 
   VideoSendStream::RtpStateMap suspended_video_send_ssrcs_;
 
-  RtcEventLog* event_log_ = nullptr;
-  VoECodec* voe_codec_ = nullptr;
+  RtcEventLog* event_log_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(Call);
 };
@@ -143,7 +142,8 @@
       config_(config),
       network_enabled_(true),
       receive_crit_(RWLockWrapper::CreateRWLock()),
-      send_crit_(RWLockWrapper::CreateRWLock()) {
+      send_crit_(RWLockWrapper::CreateRWLock()),
+      event_log_(nullptr) {
   RTC_DCHECK(configuration_thread_checker_.CalledOnValidThread());
   RTC_DCHECK_GE(config.bitrate_config.min_bitrate_bps, 0);
   RTC_DCHECK_GE(config.bitrate_config.start_bitrate_bps,
@@ -153,11 +153,11 @@
                   config.bitrate_config.start_bitrate_bps);
   }
   if (config.voice_engine) {
-    // Keep a reference to VoECodec, so we're sure the VoiceEngine lives for the
-    // duration of the call.
-    voe_codec_ = VoECodec::GetInterface(config.voice_engine);
-    if (voe_codec_)
-      event_log_ = voe_codec_->GetEventLog();
+    VoECodec* voe_codec = VoECodec::GetInterface(config.voice_engine);
+    if (voe_codec) {
+      event_log_ = voe_codec->GetEventLog();
+      voe_codec->Release();
+    }
   }
 
   Trace::CreateTrace();
@@ -179,9 +179,6 @@
 
   module_process_thread_->Stop();
   Trace::ReturnTrace();
-
-  if (voe_codec_)
-    voe_codec_->Release();
 }
 
 PacketReceiver* Call::Receiver() {
@@ -232,8 +229,7 @@
   TRACE_EVENT0("webrtc", "Call::CreateAudioReceiveStream");
   RTC_DCHECK(configuration_thread_checker_.CalledOnValidThread());
   AudioReceiveStream* receive_stream = new AudioReceiveStream(
-      channel_group_->GetRemoteBitrateEstimator(false), config,
-      config_.voice_engine);
+      channel_group_->GetRemoteBitrateEstimator(false), config);
   {
     WriteLockScoped write_lock(*receive_crit_);
     RTC_DCHECK(audio_receive_ssrcs_.find(config.rtp.remote_ssrc) ==
diff --git a/webrtc/call/call_unittest.cc b/webrtc/call/call_unittest.cc
index 9819b53..9adecc3 100644
--- a/webrtc/call/call_unittest.cc
+++ b/webrtc/call/call_unittest.cc
@@ -13,21 +13,19 @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 #include "webrtc/call.h"
-#include "webrtc/test/fake_voice_engine.h"
 
 namespace {
 
 struct CallHelper {
-  CallHelper() : voice_engine_(new webrtc::test::FakeVoiceEngine()) {
+  CallHelper() {
     webrtc::Call::Config config;
-    config.voice_engine = voice_engine_.get();
+    // TODO(solenberg): Fill in with VoiceEngine* etc.
     call_.reset(webrtc::Call::Create(config));
   }
 
   webrtc::Call* operator->() { return call_.get(); }
 
  private:
-  rtc::scoped_ptr<webrtc::test::FakeVoiceEngine> voice_engine_;
   rtc::scoped_ptr<webrtc::Call> call_;
 };
 }  // namespace
diff --git a/webrtc/test/fake_voice_engine.h b/webrtc/test/fake_voice_engine.h
deleted file mode 100644
index 72f6b27..0000000
--- a/webrtc/test/fake_voice_engine.h
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- *  Copyright (c) 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_AUDIO_FAKE_VOICE_ENGINE_H_
-#define WEBRTC_AUDIO_FAKE_VOICE_ENGINE_H_
-
-#include <vector>
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-#include "webrtc/voice_engine/voice_engine_impl.h"
-
-namespace webrtc {
-namespace test {
-
-// NOTE: This class inherits from VoiceEngineImpl so that its clients will be
-// able to get the various interfaces as usual, via T::GetInterface().
-class FakeVoiceEngine final : public VoiceEngineImpl {
- public:
-  const int kSendChannelId = 1;
-  const int kReceiveChannelId = 2;
-
-  const int kRecvJitterBufferDelay = -7;
-  const int kRecvPlayoutBufferDelay = 302;
-  const unsigned int kRecvSpeechOutputLevel = 99;
-
-  FakeVoiceEngine() : VoiceEngineImpl(new Config(), true) {
-    // Increase ref count so this object isn't automatically deleted whenever
-    // interfaces are Release():d.
-    ++_ref_count;
-  }
-  ~FakeVoiceEngine() override {
-    // Decrease ref count before base class d-tor is called; otherwise it will
-    // trigger an assertion.
-    --_ref_count;
-  }
-
-  const CallStatistics& GetRecvCallStats() const {
-    static const CallStatistics kStats = {
-      345, 678, 901, 234, -1, 0, 0, 567, 890, 123
-    };
-    return kStats;
-  }
-
-  const CodecInst& GetRecvRecCodecInst() const {
-    static const CodecInst kStats = {
-      123, "codec_name", 96000, -1, -1, -1
-    };
-    return kStats;
-  }
-
-  const NetworkStatistics& GetRecvNetworkStats() const {
-    static const NetworkStatistics kStats = {
-      123, 456, false, 0, 0, 789, 12, 345, 678, 901, -1, -1, -1, -1, -1, 0
-    };
-    return kStats;
-  }
-
-  const AudioDecodingCallStats& GetRecvAudioDecodingCallStats() const {
-    static AudioDecodingCallStats stats;
-    if (stats.calls_to_silence_generator == 0) {
-      stats.calls_to_silence_generator = 234;
-      stats.calls_to_neteq = 567;
-      stats.decoded_normal = 890;
-      stats.decoded_plc = 123;
-      stats.decoded_cng = 456;
-      stats.decoded_plc_cng = 789;
-    }
-    return stats;
-  }
-
-  // VoEBase
-  int RegisterVoiceEngineObserver(VoiceEngineObserver& observer) override {
-    return -1;
-  }
-  int DeRegisterVoiceEngineObserver() override { return -1; }
-  int Init(AudioDeviceModule* external_adm = NULL,
-           AudioProcessing* audioproc = NULL) override { return -1; }
-  AudioProcessing* audio_processing() override { return nullptr; }
-  int Terminate() override { return -1; }
-  int CreateChannel() override { return -1; }
-  int CreateChannel(const Config& config) override { return -1; }
-  int DeleteChannel(int channel) override { return -1; }
-  int StartReceive(int channel) override { return -1; }
-  int StopReceive(int channel) override { return -1; }
-  int StartPlayout(int channel) override { return -1; }
-  int StopPlayout(int channel) override { return -1; }
-  int StartSend(int channel) override { return -1; }
-  int StopSend(int channel) override { return -1; }
-  int GetVersion(char version[1024]) override { return -1; }
-  int LastError() override { return -1; }
-  AudioTransport* audio_transport() { return nullptr; }
-  int AssociateSendChannel(int channel, int accociate_send_channel) override {
-    return -1;
-  }
-
-  // VoECodec
-  int NumOfCodecs() override { return -1; }
-  int GetCodec(int index, CodecInst& codec) override { return -1; }
-  int SetSendCodec(int channel, const CodecInst& codec) override { return -1; }
-  int GetSendCodec(int channel, CodecInst& codec) override { return -1; }
-  int SetBitRate(int channel, int bitrate_bps) override { return -1; }
-  int GetRecCodec(int channel, CodecInst& codec) override {
-    EXPECT_EQ(channel, kReceiveChannelId);
-    codec = GetRecvRecCodecInst();
-    return 0;
-  }
-  int SetRecPayloadType(int channel, const CodecInst& codec) override {
-    return -1;
-  }
-  int GetRecPayloadType(int channel, CodecInst& codec) override { return -1; }
-  int SetSendCNPayloadType(int channel, int type,
-      PayloadFrequencies frequency = kFreq16000Hz) override { return -1; }
-  int SetVADStatus(int channel,
-                   bool enable,
-                   VadModes mode = kVadConventional,
-                   bool disableDTX = false) override { return -1; }
-  int GetVADStatus(int channel,
-                   bool& enabled,
-                   VadModes& mode,
-                   bool& disabledDTX) override { return -1; }
-  int SetOpusMaxPlaybackRate(int channel, int frequency_hz) override {
-    return -1;
-  }
-  int SetOpusDtx(int channel, bool enable_dtx) override { return -1; }
-  RtcEventLog* GetEventLog() override { return nullptr; }
-
-  // VoEDtmf
-  int SendTelephoneEvent(int channel,
-                         int eventCode,
-                         bool outOfBand = true,
-                         int lengthMs = 160,
-                         int attenuationDb = 10) override { return -1; }
-  int SetSendTelephoneEventPayloadType(int channel,
-                                       unsigned char type) override {
-    return -1;
-  }
-  int GetSendTelephoneEventPayloadType(int channel,
-                                       unsigned char& type) override {
-    return -1;
-  }
-  int SetDtmfFeedbackStatus(bool enable,
-                            bool directFeedback = false) override { return -1; }
-  int GetDtmfFeedbackStatus(bool& enabled, bool& directFeedback) override {
-    return -1;
-  }
-  int PlayDtmfTone(int eventCode,
-                   int lengthMs = 200,
-                   int attenuationDb = 10) override { return -1; }
-
-  // VoEExternalMedia
-  int RegisterExternalMediaProcessing(
-      int channel,
-      ProcessingTypes type,
-      VoEMediaProcess& processObject) override { return -1; }
-  int DeRegisterExternalMediaProcessing(int channel,
-                                        ProcessingTypes type) override {
-    return -1;
-  }
-  int GetAudioFrame(int channel,
-                    int desired_sample_rate_hz,
-                    AudioFrame* frame) override { return -1; }
-  int SetExternalMixing(int channel, bool enable) override { return -1; }
-
-  // VoEFile
-  int StartPlayingFileLocally(
-      int channel,
-      const char fileNameUTF8[1024],
-      bool loop = false,
-      FileFormats format = kFileFormatPcm16kHzFile,
-      float volumeScaling = 1.0,
-      int startPointMs = 0,
-      int stopPointMs = 0) override { return -1; }
-  int StartPlayingFileLocally(
-      int channel,
-      InStream* stream,
-      FileFormats format = kFileFormatPcm16kHzFile,
-      float volumeScaling = 1.0,
-      int startPointMs = 0,
-      int stopPointMs = 0) override { return -1; }
-  int StopPlayingFileLocally(int channel) override { return -1; }
-  int IsPlayingFileLocally(int channel) override { return -1; }
-  int StartPlayingFileAsMicrophone(
-      int channel,
-      const char fileNameUTF8[1024],
-      bool loop = false,
-      bool mixWithMicrophone = false,
-      FileFormats format = kFileFormatPcm16kHzFile,
-      float volumeScaling = 1.0) override { return -1; }
-  int StartPlayingFileAsMicrophone(
-      int channel,
-      InStream* stream,
-      bool mixWithMicrophone = false,
-      FileFormats format = kFileFormatPcm16kHzFile,
-      float volumeScaling = 1.0) override { return -1; }
-  int StopPlayingFileAsMicrophone(int channel) override { return -1; }
-  int IsPlayingFileAsMicrophone(int channel) override { return -1; }
-  int StartRecordingPlayout(int channel,
-                            const char* fileNameUTF8,
-                            CodecInst* compression = NULL,
-                            int maxSizeBytes = -1) override { return -1; }
-  int StopRecordingPlayout(int channel) override { return -1; }
-  int StartRecordingPlayout(int channel,
-                            OutStream* stream,
-                            CodecInst* compression = NULL) override {
-    return -1;
-  }
-  int StartRecordingMicrophone(const char* fileNameUTF8,
-                               CodecInst* compression = NULL,
-                               int maxSizeBytes = -1) override { return -1; }
-  int StartRecordingMicrophone(OutStream* stream,
-                                       CodecInst* compression = NULL) override {
-    return -1;
-  }
-  int StopRecordingMicrophone() override { return -1; }
-
-  // VoEHardware
-  int GetNumOfRecordingDevices(int& devices) override { return -1; }
-
-  // Gets the number of audio devices available for playout.
-  int GetNumOfPlayoutDevices(int& devices) override { return -1; }
-
-  // Gets the name of a specific recording device given by an |index|.
-  // On Windows Vista/7, it also retrieves an additional unique ID
-  // (GUID) for the recording device.
-  int GetRecordingDeviceName(int index,
-                             char strNameUTF8[128],
-                             char strGuidUTF8[128]) override { return -1; }
-
-  // Gets the name of a specific playout device given by an |index|.
-  // On Windows Vista/7, it also retrieves an additional unique ID
-  // (GUID) for the playout device.
-  int GetPlayoutDeviceName(int index,
-                           char strNameUTF8[128],
-                           char strGuidUTF8[128]) override { return -1; }
-
-  // Sets the audio device used for recording.
-  int SetRecordingDevice(
-      int index,
-      StereoChannel recordingChannel = kStereoBoth) override { return -1; }
-
-  // Sets the audio device used for playout.
-  int SetPlayoutDevice(int index) override { return -1; }
-
-  // Sets the type of audio device layer to use.
-  int SetAudioDeviceLayer(AudioLayers audioLayer) override { return -1; }
-
-  // Gets the currently used (active) audio device layer.
-  int GetAudioDeviceLayer(AudioLayers& audioLayer) override { return -1; }
-
-  // Native sample rate controls (samples/sec)
-  int SetRecordingSampleRate(unsigned int samples_per_sec) override {
-    return -1;
-  }
-  int RecordingSampleRate(unsigned int* samples_per_sec) const override {
-    return -1;
-  }
-  int SetPlayoutSampleRate(unsigned int samples_per_sec) override {
-    return -1;
-  }
-  int PlayoutSampleRate(unsigned int* samples_per_sec) const override {
-    return -1;
-  }
-
-  // Queries and controls platform audio effects on Android devices.
-  bool BuiltInAECIsAvailable() const override { return false; }
-  int EnableBuiltInAEC(bool enable) override { return -1; }
-  bool BuiltInAGCIsAvailable() const override { return false; }
-  int EnableBuiltInAGC(bool enable) override { return -1; }
-  bool BuiltInNSIsAvailable() const override { return false; }
-  int EnableBuiltInNS(bool enable) override { return -1; }
-
-  // VoENetwork
-  int RegisterExternalTransport(int channel, Transport& transport) override {
-    return -1;
-  }
-  int DeRegisterExternalTransport(int channel) override { return -1; }
-  int ReceivedRTPPacket(int channel,
-                        const void* data,
-                        size_t length) override { return -1; }
-  int ReceivedRTPPacket(int channel,
-                        const void* data,
-                        size_t length,
-                        const PacketTime& packet_time) override { return -1; }
-  int ReceivedRTCPPacket(int channel,
-                         const void* data,
-                         size_t length) { return -1; }
-
-  // VoENetEqStats
-  int GetNetworkStatistics(int channel, NetworkStatistics& stats) override {
-    EXPECT_EQ(channel, kReceiveChannelId);
-    stats = GetRecvNetworkStats();
-    return 0;
-  }
-  int GetDecodingCallStatistics(int channel,
-                                AudioDecodingCallStats* stats) const override {
-    EXPECT_EQ(channel, kReceiveChannelId);
-    EXPECT_NE(nullptr, stats);
-    *stats = GetRecvAudioDecodingCallStats();
-    return 0;
-  }
-
-  // VoERTP_RTCP
-  int SetLocalSSRC(int channel, unsigned int ssrc) override { return -1; }
-  int GetLocalSSRC(int channel, unsigned int& ssrc) override { return -1; }
-  int GetRemoteSSRC(int channel, unsigned int& ssrc) override {
-    EXPECT_EQ(channel, kReceiveChannelId);
-    ssrc = 0;
-    return 0;
-  }
-  int SetSendAudioLevelIndicationStatus(int channel,
-                                        bool enable,
-                                        unsigned char id = 1) override {
-    return -1;
-  }
-  int SetSendAbsoluteSenderTimeStatus(int channel,
-                                      bool enable,
-                                      unsigned char id) override { return -1; }
-  int SetReceiveAbsoluteSenderTimeStatus(int channel,
-                                         bool enable,
-                                         unsigned char id) override {
-    return -1;
-  }
-  int SetRTCPStatus(int channel, bool enable) override { return -1; }
-  int GetRTCPStatus(int channel, bool& enabled) override { return -1; }
-  int SetRTCP_CNAME(int channel, const char cName[256]) override { return -1; }
-  int GetRTCP_CNAME(int channel, char cName[256]) { return -1; }
-  int GetRemoteRTCP_CNAME(int channel, char cName[256]) override { return -1; }
-  int GetRemoteRTCPData(int channel,
-                        unsigned int& NTPHigh,
-                        unsigned int& NTPLow,
-                        unsigned int& timestamp,
-                        unsigned int& playoutTimestamp,
-                        unsigned int* jitter = NULL,
-                        unsigned short* fractionLost = NULL) override {
-    return -1;
-  }
-  int GetRTPStatistics(int channel,
-                       unsigned int& averageJitterMs,
-                       unsigned int& maxJitterMs,
-                       unsigned int& discardedPackets) override { return -1; }
-  int GetRTCPStatistics(int channel, CallStatistics& stats) override {
-    EXPECT_EQ(channel, kReceiveChannelId);
-    stats = GetRecvCallStats();
-    return 0;
-  }
-  int GetRemoteRTCPReportBlocks(
-      int channel,
-      std::vector<ReportBlock>* receive_blocks) override { return -1; }
-  int SetNACKStatus(int channel, bool enable, int maxNoPackets) override {
-    return -1;
-  }
-
-  // VoEVideoSync
-  int GetPlayoutBufferSize(int& buffer_ms) override { return -1; }
-  int SetMinimumPlayoutDelay(int channel, int delay_ms) override { return -1; }
-  int SetInitialPlayoutDelay(int channel, int delay_ms) override { return -1; }
-  int GetDelayEstimate(int channel,
-                       int* jitter_buffer_delay_ms,
-                       int* playout_buffer_delay_ms) override {
-    EXPECT_EQ(channel, kReceiveChannelId);
-    *jitter_buffer_delay_ms = kRecvJitterBufferDelay;
-    *playout_buffer_delay_ms = kRecvPlayoutBufferDelay;
-    return 0;
-  }
-  int GetLeastRequiredDelayMs(int channel) const override { return -1; }
-  int SetInitTimestamp(int channel, unsigned int timestamp) override {
-    return -1;
-  }
-  int SetInitSequenceNumber(int channel, short sequenceNumber) override {
-    return -1;
-  }
-  int GetPlayoutTimestamp(int channel, unsigned int& timestamp) override {
-    return -1;
-  }
-  int GetRtpRtcp(int channel,
-                 RtpRtcp** rtpRtcpModule,
-                 RtpReceiver** rtp_receiver) override { return -1; }
-
-  // VoEVolumeControl
-  int SetSpeakerVolume(unsigned int volume) override { return -1; }
-  int GetSpeakerVolume(unsigned int& volume) override { return -1; }
-  int SetMicVolume(unsigned int volume) override { return -1; }
-  int GetMicVolume(unsigned int& volume) override { return -1; }
-  int SetInputMute(int channel, bool enable) override { return -1; }
-  int GetInputMute(int channel, bool& enabled) override { return -1; }
-  int GetSpeechInputLevel(unsigned int& level) override { return -1; }
-  int GetSpeechOutputLevel(int channel, unsigned int& level) override {
-    return -1;
-  }
-  int GetSpeechInputLevelFullRange(unsigned int& level) override { return -1; }
-  int GetSpeechOutputLevelFullRange(int channel,
-                                    unsigned int& level) override {
-    EXPECT_EQ(channel, kReceiveChannelId);
-    level = kRecvSpeechOutputLevel;
-    return 0;
-  }
-  int SetChannelOutputVolumeScaling(int channel, float scaling) override {
-    return -1;
-  }
-  int GetChannelOutputVolumeScaling(int channel, float& scaling) override {
-    return -1;
-  }
-  int SetOutputVolumePan(int channel, float left, float right) override {
-    return -1;
-  }
-  int GetOutputVolumePan(int channel, float& left, float& right) override {
-    return -1;
-  }
-};
-}  // namespace test
-}  // namespace webrtc
-
-#endif  // WEBRTC_AUDIO_FAKE_VOICE_ENGINE_H_
diff --git a/webrtc/test/webrtc_test_common.gyp b/webrtc/test/webrtc_test_common.gyp
index 5076900..f8d3365 100644
--- a/webrtc/test/webrtc_test_common.gyp
+++ b/webrtc/test/webrtc_test_common.gyp
@@ -30,7 +30,6 @@
         'fake_encoder.h',
         'fake_network_pipe.cc',
         'fake_network_pipe.h',
-        'fake_voice_engine.h',
         'frame_generator_capturer.cc',
         'frame_generator_capturer.h',
         'layer_filtering_transport.cc',
diff --git a/webrtc/voice_engine/voice_engine_impl.h b/webrtc/voice_engine/voice_engine_impl.h
index a21aabd..07f29c3 100644
--- a/webrtc/voice_engine/voice_engine_impl.h
+++ b/webrtc/voice_engine/voice_engine_impl.h
@@ -128,9 +128,7 @@
   // This implements the Release() method for all the inherited interfaces.
   int Release() override;
 
- // This is *protected* so that FakeVoiceEngine can inherit from the class and
- // manipulate the reference count. See: fake_voice_engine.h.
- protected:
+ private:
   Atomic32 _ref_count;
   rtc::scoped_ptr<const Config> own_config_;
 };