Revert of Adding debug dump to audio network adaptor. (patchset #5 id:140001 of https://codereview.webrtc.org/2356763002/ )

Reason for revert:
Chromium bot fails

Original issue's description:
> Adding debug dump to audio network adaptor.
>
> BUG=webrtc:6303
>
> Committed: https://crrev.com/7e4f8928062afc8d571bb69f3223711701cbaad6
> Cr-Commit-Position: refs/heads/master@{#14361}

TBR=michaelt@webrtc.org,kwiberg@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6303

Review-Url: https://codereview.webrtc.org/2362003002
Cr-Commit-Position: refs/heads/master@{#14362}
diff --git a/webrtc/modules/audio_coding/BUILD.gn b/webrtc/modules/audio_coding/BUILD.gn
index 5f0f47b..eaf2e74 100644
--- a/webrtc/modules/audio_coding/BUILD.gn
+++ b/webrtc/modules/audio_coding/BUILD.gn
@@ -709,8 +709,6 @@
     "audio_network_adaptor/controller.h",
     "audio_network_adaptor/controller_manager.cc",
     "audio_network_adaptor/controller_manager.h",
-    "audio_network_adaptor/debug_dump_writer.cc",
-    "audio_network_adaptor/debug_dump_writer.h",
     "audio_network_adaptor/dtx_controller.cc",
     "audio_network_adaptor/dtx_controller.h",
     "audio_network_adaptor/fec_controller.cc",
@@ -723,13 +721,6 @@
   ]
   configs += [ "../..:common_config" ]
   public_configs = [ "../..:common_inherited_config" ]
-
-  if (rtc_enable_protobuf) {
-    deps = [
-      ":ana_debug_dump_proto",
-    ]
-    defines = [ "WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP" ]
-  }
 }
 
 config("neteq_config") {
@@ -986,13 +977,6 @@
   }  # audio_decoder_unittests
 
   if (rtc_enable_protobuf) {
-    proto_library("ana_debug_dump_proto") {
-      sources = [
-        "audio_network_adaptor/debug_dump.proto",
-      ]
-      proto_out_dir = "webrtc/modules/audio_coding/audio_network_adaptor"
-    }
-
     proto_library("neteq_unittest_proto") {
       sources = [
         "neteq/neteq_unittest.proto",
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor.gypi b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor.gypi
index 508b62b..af6ba55 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor.gypi
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor.gypi
@@ -22,8 +22,6 @@
         'controller.cc',
         'controller_manager.cc',
         'controller_manager.h',
-        'debug_dump_writer.cc',
-        'debug_dump_writer.h',
         'dtx_controller.h',
         'dtx_controller.cc',
         'fec_controller.h',
@@ -33,32 +31,7 @@
         'include/audio_network_adaptor.h',
         'smoothing_filter.h',
         'smoothing_filter.cc',
-      ], # sources
-      'conditions': [
-        ['enable_protobuf==1', {
-          'dependencies': ['debug_dump_proto'],
-          'defines': ['WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP'],
-        }],
-      ], # conditions
+      ], # source
     },
   ], # targets
-
-  'conditions': [
-    ['enable_protobuf==1', {
-      'targets': [
-        { 'target_name': 'debug_dump_proto',
-          'type': 'static_library',
-          'sources': ['debug_dump.proto',],
-          'variables': {
-            'proto_in_dir': '.',
-            # Workaround to protect against gyp's pathname relativization when
-            # this file is included by modules.gyp.
-            'proto_out_protected': 'webrtc/modules/audio_coding/audio_network_adaptor',
-            'proto_out_dir': '<(proto_out_protected)',
-          },
-          'includes': ['../../../build/protoc.gypi',],
-        },
-      ], # targets
-    }],
-  ], # conditions
 }
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc
index 3d8b2be..0303c84 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.cc
@@ -8,10 +8,10 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h"
-
 #include <utility>
 
+#include "webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h"
+
 namespace webrtc {
 
 AudioNetworkAdaptorImpl::Config::Config() = default;
@@ -21,15 +21,7 @@
 AudioNetworkAdaptorImpl::AudioNetworkAdaptorImpl(
     const Config& config,
     std::unique_ptr<ControllerManager> controller_manager)
-    : AudioNetworkAdaptorImpl(config, std::move(controller_manager), nullptr) {}
-
-AudioNetworkAdaptorImpl::AudioNetworkAdaptorImpl(
-    const Config& config,
-    std::unique_ptr<ControllerManager> controller_manager,
-    std::unique_ptr<DebugDumpWriter> debug_dump_writer)
-    : config_(config),
-      controller_manager_(std::move(controller_manager)),
-      debug_dump_writer_(std::move(debug_dump_writer)) {
+    : config_(config), controller_manager_(std::move(controller_manager)) {
   RTC_DCHECK(controller_manager_);
 }
 
@@ -37,19 +29,16 @@
 
 void AudioNetworkAdaptorImpl::SetUplinkBandwidth(int uplink_bandwidth_bps) {
   last_metrics_.uplink_bandwidth_bps = rtc::Optional<int>(uplink_bandwidth_bps);
-  DumpNetworkMetrics();
+
+  // TODO(minyue): Add debug dumping.
 }
 
 void AudioNetworkAdaptorImpl::SetUplinkPacketLossFraction(
     float uplink_packet_loss_fraction) {
   last_metrics_.uplink_packet_loss_fraction =
       rtc::Optional<float>(uplink_packet_loss_fraction);
-  DumpNetworkMetrics();
-}
 
-void AudioNetworkAdaptorImpl::SetRtt(int rtt_ms) {
-  last_metrics_.rtt_ms = rtc::Optional<int>(rtt_ms);
-  DumpNetworkMetrics();
+  // TODO(minyue): Add debug dumping.
 }
 
 AudioNetworkAdaptor::EncoderRuntimeConfig
@@ -60,9 +49,6 @@
     controller->MakeDecision(last_metrics_, &config);
 
   // TODO(minyue): Add debug dumping.
-  if (debug_dump_writer_)
-    debug_dump_writer_->DumpEncoderRuntimeConfig(
-        config, config_.clock->TimeInMilliseconds());
 
   return config;
 }
@@ -81,17 +67,7 @@
 }
 
 void AudioNetworkAdaptorImpl::StartDebugDump(FILE* file_handle) {
-  debug_dump_writer_ = DebugDumpWriter::Create(file_handle);
-}
-
-void AudioNetworkAdaptorImpl::StopDebugDump() {
-  debug_dump_writer_.reset(nullptr);
-}
-
-void AudioNetworkAdaptorImpl::DumpNetworkMetrics() {
-  if (debug_dump_writer_)
-    debug_dump_writer_->DumpNetworkMetrics(last_metrics_,
-                                           config_.clock->TimeInMilliseconds());
+  // TODO(minyue): Implement this method.
 }
 
 }  // namespace webrtc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h
index 289b677..6f8d348 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h
@@ -16,9 +16,7 @@
 #include "webrtc/base/constructormagic.h"
 #include "webrtc/modules/audio_coding/audio_network_adaptor/controller.h"
 #include "webrtc/modules/audio_coding/audio_network_adaptor/controller_manager.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h"
 #include "webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h"
-#include "webrtc/system_wrappers/include/clock.h"
 
 namespace webrtc {
 
@@ -27,27 +25,18 @@
   struct Config {
     Config();
     ~Config();
-    const Clock* clock;
   };
 
   AudioNetworkAdaptorImpl(
       const Config& config,
       std::unique_ptr<ControllerManager> controller_manager);
 
-  // Dependency injection for testing.
-  AudioNetworkAdaptorImpl(
-      const Config& config,
-      std::unique_ptr<ControllerManager> controller_manager,
-      std::unique_ptr<DebugDumpWriter> debug_dump_writer = nullptr);
-
   ~AudioNetworkAdaptorImpl() override;
 
   void SetUplinkBandwidth(int uplink_bandwidth_bps) override;
 
   void SetUplinkPacketLossFraction(float uplink_packet_loss_fraction) override;
 
-  void SetRtt(int rtt_ms) override;
-
   void SetReceiverFrameLengthRange(int min_frame_length_ms,
                                    int max_frame_length_ms) override;
 
@@ -55,17 +44,11 @@
 
   void StartDebugDump(FILE* file_handle) override;
 
-  void StopDebugDump() override;
-
  private:
-  void DumpNetworkMetrics();
-
   const Config config_;
 
   std::unique_ptr<ControllerManager> controller_manager_;
 
-  std::unique_ptr<DebugDumpWriter> debug_dump_writer_;
-
   Controller::NetworkMetrics last_metrics_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(AudioNetworkAdaptorImpl);
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl_unittest.cc b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl_unittest.cc
index aee41da..6562674 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl_unittest.cc
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl_unittest.cc
@@ -15,25 +15,20 @@
 #include "webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h"
 #include "webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_controller.h"
 #include "webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_controller_manager.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_debug_dump_writer.h"
 
 namespace webrtc {
 
 using ::testing::_;
 using ::testing::NiceMock;
 using ::testing::Return;
-using ::testing::SetArgPointee;
 
 namespace {
 
 constexpr size_t kNumControllers = 2;
 
-constexpr int64_t kClockInitialTimeMs = 12345678;
-
 MATCHER_P(NetworkMetricsIs, metric, "") {
   return arg.uplink_bandwidth_bps == metric.uplink_bandwidth_bps &&
          arg.target_audio_bitrate_bps == metric.target_audio_bitrate_bps &&
-         arg.rtt_ms == metric.rtt_ms &&
          arg.uplink_packet_loss_fraction == metric.uplink_packet_loss_fraction;
 }
 
@@ -44,21 +39,9 @@
              frame_length_range.max_frame_length_ms;
 }
 
-MATCHER_P(EncoderRuntimeConfigIs, config, "") {
-  return arg.bitrate_bps == config.bitrate_bps &&
-         arg.frame_length_ms == config.frame_length_ms &&
-         arg.uplink_packet_loss_fraction ==
-             config.uplink_packet_loss_fraction &&
-         arg.enable_fec == config.enable_fec &&
-         arg.enable_dtx == config.enable_dtx &&
-         arg.num_channels == config.num_channels;
-}
-
 struct AudioNetworkAdaptorStates {
   std::unique_ptr<AudioNetworkAdaptorImpl> audio_network_adaptor;
   std::vector<std::unique_ptr<MockController>> mock_controllers;
-  std::unique_ptr<SimulatedClock> simulated_clock;
-  MockDebugDumpWriter* mock_debug_dump_writer;
 };
 
 AudioNetworkAdaptorStates CreateAudioNetworkAdaptor() {
@@ -81,19 +64,9 @@
   EXPECT_CALL(*controller_manager, GetSortedControllers(_))
       .WillRepeatedly(Return(controllers));
 
-  states.simulated_clock.reset(new SimulatedClock(kClockInitialTimeMs * 1000));
-
-  auto debug_dump_writer =
-      std::unique_ptr<MockDebugDumpWriter>(new NiceMock<MockDebugDumpWriter>());
-  EXPECT_CALL(*debug_dump_writer, Die());
-  states.mock_debug_dump_writer = debug_dump_writer.get();
-
-  AudioNetworkAdaptorImpl::Config config;
-  config.clock = states.simulated_clock.get();
   // AudioNetworkAdaptorImpl governs the lifetime of controller manager.
   states.audio_network_adaptor.reset(new AudioNetworkAdaptorImpl(
-      config,
-      std::move(controller_manager), std::move(debug_dump_writer)));
+      AudioNetworkAdaptorImpl::Config(), std::move(controller_manager)));
 
   return states;
 }
@@ -135,52 +108,4 @@
   states.audio_network_adaptor->SetReceiverFrameLengthRange(20, 120);
 }
 
-TEST(AudioNetworkAdaptorImplTest,
-     DumpEncoderRuntimeConfigIsCalledOnGetEncoderRuntimeConfig) {
-  auto states = CreateAudioNetworkAdaptor();
-
-  AudioNetworkAdaptor::EncoderRuntimeConfig config;
-  config.bitrate_bps = rtc::Optional<int>(32000);
-  config.enable_fec = rtc::Optional<bool>(true);
-
-  EXPECT_CALL(*states.mock_controllers[0], MakeDecision(_, _))
-      .WillOnce(SetArgPointee<1>(config));
-
-  EXPECT_CALL(*states.mock_debug_dump_writer,
-              DumpEncoderRuntimeConfig(EncoderRuntimeConfigIs(config),
-                                       kClockInitialTimeMs));
-  states.audio_network_adaptor->GetEncoderRuntimeConfig();
-}
-
-TEST(AudioNetworkAdaptorImplTest,
-     DumpNetworkMetricsIsCalledOnSetNetworkMetrics) {
-  auto states = CreateAudioNetworkAdaptor();
-
-  constexpr int kBandwidth = 16000;
-  constexpr float kPacketLoss = 0.7f;
-  constexpr int kRtt = 100;
-
-  Controller::NetworkMetrics check;
-  check.uplink_bandwidth_bps = rtc::Optional<int>(kBandwidth);
-  int64_t timestamp_check = kClockInitialTimeMs;
-
-  EXPECT_CALL(*states.mock_debug_dump_writer,
-              DumpNetworkMetrics(NetworkMetricsIs(check), timestamp_check));
-  states.audio_network_adaptor->SetUplinkBandwidth(kBandwidth);
-
-  states.simulated_clock->AdvanceTimeMilliseconds(100);
-  timestamp_check += 100;
-  check.uplink_packet_loss_fraction = rtc::Optional<float>(kPacketLoss);
-  EXPECT_CALL(*states.mock_debug_dump_writer,
-              DumpNetworkMetrics(NetworkMetricsIs(check), timestamp_check));
-  states.audio_network_adaptor->SetUplinkPacketLossFraction(kPacketLoss);
-
-  states.simulated_clock->AdvanceTimeMilliseconds(200);
-  timestamp_check += 200;
-  check.rtt_ms = rtc::Optional<int>(kRtt);
-  EXPECT_CALL(*states.mock_debug_dump_writer,
-              DumpNetworkMetrics(NetworkMetricsIs(check), timestamp_check));
-  states.audio_network_adaptor->SetRtt(kRtt);
-}
-
 }  // namespace webrtc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/controller.h b/webrtc/modules/audio_coding/audio_network_adaptor/controller.h
index f27a391..c1b16c7 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/controller.h
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/controller.h
@@ -24,7 +24,6 @@
     rtc::Optional<int> uplink_bandwidth_bps;
     rtc::Optional<float> uplink_packet_loss_fraction;
     rtc::Optional<int> target_audio_bitrate_bps;
-    rtc::Optional<int> rtt_ms;
   };
 
   struct Constraints {
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump.proto b/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump.proto
deleted file mode 100644
index f425244..0000000
--- a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump.proto
+++ /dev/null
@@ -1,30 +0,0 @@
-syntax = "proto2";
-option optimize_for = LITE_RUNTIME;
-package webrtc.audio_network_adaptor.debug_dump;
-
-message NetworkMetrics {
-  optional int32 uplink_bandwidth_bps = 1;
-  optional float uplink_packet_loss_fraction = 2;
-  optional int32 target_audio_bitrate_bps = 3;
-  optional int32 rtt_ms = 4;
-}
-
-message EncoderRuntimeConfig {
-  optional int32 bitrate_bps = 1;
-  optional int32 frame_length_ms = 2;
-  optional float uplink_packet_loss_fraction = 3;
-  optional bool enable_fec = 4;
-  optional bool enable_dtx = 5;
-  optional uint32 num_channels = 6;
-}
-
-message Event {
-  enum Type {
-    NETWORK_METRICS = 0;
-    ENCODER_RUNTIME_CONFIG = 1;
-  }
-  required Type type = 1;
-  required uint32 timestamp = 2;
-  optional NetworkMetrics network_metrics = 3;
-  optional EncoderRuntimeConfig encoder_runtime_config = 4;
-}
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.cc b/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.cc
deleted file mode 100644
index 9992e2d..0000000
--- a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.cc
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- *  Copyright (c) 2016 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.
- */
-
-#include "webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h"
-
-#include "webrtc/base/checks.h"
-
-#ifdef WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-#ifdef WEBRTC_ANDROID_PLATFORM_BUILD
-#include "external/webrtc/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump.pb.h"
-#else
-#include "webrtc/modules/audio_coding/audio_network_adaptor/debug_dump.pb.h"
-#endif
-#endif
-
-namespace webrtc {
-
-#ifdef WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-namespace {
-
-using audio_network_adaptor::debug_dump::Event;
-using audio_network_adaptor::debug_dump::NetworkMetrics;
-using audio_network_adaptor::debug_dump::EncoderRuntimeConfig;
-
-void DumpEventToFile(const Event& event, FileWrapper* dump_file) {
-  RTC_CHECK(dump_file->is_open());
-  std::string dump_data;
-  event.SerializeToString(&dump_data);
-  int32_t size = event.ByteSize();
-  dump_file->Write(&size, sizeof(size));
-  dump_file->Write(dump_data.data(), dump_data.length());
-}
-
-}  // namespace
-#endif  // WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-
-class DebugDumpWriterImpl final : public DebugDumpWriter {
- public:
-  explicit DebugDumpWriterImpl(FILE* file_handle);
-  ~DebugDumpWriterImpl() override = default;
-
-  void DumpEncoderRuntimeConfig(
-      const AudioNetworkAdaptor::EncoderRuntimeConfig& config,
-      int64_t timestamp) override;
-
-  void DumpNetworkMetrics(const Controller::NetworkMetrics& metrics,
-                          int64_t timestamp) override;
-
- private:
-  std::unique_ptr<FileWrapper> dump_file_;
-};
-
-DebugDumpWriterImpl::DebugDumpWriterImpl(FILE* file_handle)
-    : dump_file_(FileWrapper::Create()) {
-#ifndef WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-  RTC_DCHECK(false);
-#endif
-  dump_file_->OpenFromFileHandle(file_handle);
-  RTC_CHECK(dump_file_->is_open());
-}
-
-void DebugDumpWriterImpl::DumpNetworkMetrics(
-    const Controller::NetworkMetrics& metrics,
-    int64_t timestamp) {
-#ifdef WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-  Event event;
-  event.set_timestamp(timestamp);
-  event.set_type(Event::NETWORK_METRICS);
-  auto dump_metrics = event.mutable_network_metrics();
-
-  if (metrics.uplink_bandwidth_bps)
-    dump_metrics->set_uplink_bandwidth_bps(*metrics.uplink_bandwidth_bps);
-
-  if (metrics.uplink_packet_loss_fraction) {
-    dump_metrics->set_uplink_packet_loss_fraction(
-        *metrics.uplink_packet_loss_fraction);
-  }
-
-  if (metrics.target_audio_bitrate_bps) {
-    dump_metrics->set_target_audio_bitrate_bps(
-        *metrics.target_audio_bitrate_bps);
-  }
-
-  if (metrics.rtt_ms)
-    dump_metrics->set_rtt_ms(*metrics.rtt_ms);
-
-  DumpEventToFile(event, dump_file_.get());
-#endif  // WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-}
-
-void DebugDumpWriterImpl::DumpEncoderRuntimeConfig(
-    const AudioNetworkAdaptor::EncoderRuntimeConfig& config,
-    int64_t timestamp) {
-#ifdef WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-  Event event;
-  event.set_timestamp(timestamp);
-  event.set_type(Event::ENCODER_RUNTIME_CONFIG);
-  auto dump_config = event.mutable_encoder_runtime_config();
-
-  if (config.bitrate_bps)
-    dump_config->set_bitrate_bps(*config.bitrate_bps);
-
-  if (config.frame_length_ms)
-    dump_config->set_frame_length_ms(*config.frame_length_ms);
-
-  if (config.uplink_packet_loss_fraction) {
-    dump_config->set_uplink_packet_loss_fraction(
-        *config.uplink_packet_loss_fraction);
-  }
-
-  if (config.enable_fec)
-    dump_config->set_enable_fec(*config.enable_fec);
-
-  if (config.enable_dtx)
-    dump_config->set_enable_dtx(*config.enable_dtx);
-
-  if (config.num_channels)
-    dump_config->set_num_channels(*config.num_channels);
-
-  DumpEventToFile(event, dump_file_.get());
-#endif  // WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP
-}
-
-std::unique_ptr<DebugDumpWriter> DebugDumpWriter::Create(FILE* file_handle) {
-  return std::unique_ptr<DebugDumpWriter>(new DebugDumpWriterImpl(file_handle));
-}
-
-}  // namespace webrtc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h b/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h
deleted file mode 100644
index da4b031..0000000
--- a/webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- *  Copyright (c) 2016 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_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP_WRITER_H_
-#define WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP_WRITER_H_
-
-#include <memory>
-#include <string>
-
-#include "webrtc/base/constructormagic.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/controller.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h"
-#include "webrtc/system_wrappers/include/file_wrapper.h"
-
-namespace webrtc {
-
-class DebugDumpWriter {
- public:
-  static std::unique_ptr<DebugDumpWriter> Create(FILE* file_handle);
-
-  virtual ~DebugDumpWriter() = default;
-
-  virtual void DumpEncoderRuntimeConfig(
-      const AudioNetworkAdaptor::EncoderRuntimeConfig& config,
-      int64_t timestamp) = 0;
-
-  virtual void DumpNetworkMetrics(const Controller::NetworkMetrics& metrics,
-                                  int64_t timestamp) = 0;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP_WRITER_H_
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h b/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h
index e3c4db0..4b43276 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h
@@ -43,16 +43,12 @@
   virtual void SetUplinkPacketLossFraction(
       float uplink_packet_loss_fraction) = 0;
 
-  virtual void SetRtt(int rtt_ms) = 0;
-
   virtual void SetReceiverFrameLengthRange(int min_frame_length_ms,
                                            int max_frame_length_ms) = 0;
 
   virtual EncoderRuntimeConfig GetEncoderRuntimeConfig() = 0;
 
   virtual void StartDebugDump(FILE* file_handle) = 0;
-
-  virtual void StopDebugDump() = 0;
 };
 
 }  // namespace webrtc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_debug_dump_writer.h b/webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_debug_dump_writer.h
deleted file mode 100644
index f7e226e..0000000
--- a/webrtc/modules/audio_coding/audio_network_adaptor/mock/mock_debug_dump_writer.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- *  Copyright (c) 2016 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_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_MOCK_MOCK_DEBUG_DUMP_WRITER_H_
-#define WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_MOCK_MOCK_DEBUG_DUMP_WRITER_H_
-
-#include "testing/gmock/include/gmock/gmock.h"
-#include "webrtc/modules/audio_coding/audio_network_adaptor/debug_dump_writer.h"
-
-namespace webrtc {
-
-class MockDebugDumpWriter : public DebugDumpWriter {
- public:
-  virtual ~MockDebugDumpWriter() { Die(); }
-  MOCK_METHOD0(Die, void());
-
-  MOCK_METHOD2(DumpEncoderRuntimeConfig,
-               void(const AudioNetworkAdaptor::EncoderRuntimeConfig& config,
-                    int64_t timestamp));
-  MOCK_METHOD2(DumpNetworkMetrics,
-               void(const Controller::NetworkMetrics& metrics,
-                    int64_t timestamp));
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_AUDIO_CODING_AUDIO_NETWORK_ADAPTOR_MOCK_MOCK_DEBUG_DUMP_WRITER_H_