Rename webrtc/media/webrtc -> webrtc/media/engine

webrtc/media/webrtc/webrtcvideoengine2_unittest.cc

-/*
- *  Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifdef HAVE_WEBRTC_VIDEO
-
-#include <algorithm>
-#include <map>
-#include <vector>
-
-#include "webrtc/base/arraysize.h"
-#include "webrtc/base/gunit.h"
-#include "webrtc/base/stringutils.h"
-#include "webrtc/media/base/testutils.h"
-#include "webrtc/media/base/videoengine_unittest.h"
-#include "webrtc/media/webrtc/fakewebrtccall.h"
-#include "webrtc/media/webrtc/fakewebrtcvideoengine.h"
-#include "webrtc/media/webrtc/simulcast.h"
-#include "webrtc/media/webrtc/webrtcvideochannelfactory.h"
-#include "webrtc/media/webrtc/webrtcvideoengine2.h"
-#include "webrtc/media/webrtc/webrtcvoiceengine.h"
-#include "webrtc/test/field_trial.h"
-#include "webrtc/video_encoder.h"
-
-namespace {
-static const int kDefaultQpMax = 56;
-static const int kDefaultFramerate = 30;
-
-static const cricket::VideoCodec kVp8Codec720p(100, "VP8", 1280, 720, 30, 0);
-static const cricket::VideoCodec kVp8Codec360p(100, "VP8", 640, 360, 30, 0);
-static const cricket::VideoCodec kVp8Codec270p(100, "VP8", 480, 270, 30, 0);
-
-static const cricket::VideoCodec kVp8Codec(100, "VP8", 640, 400, 30, 0);
-static const cricket::VideoCodec kVp9Codec(101, "VP9", 640, 400, 30, 0);
-static const cricket::VideoCodec kH264Codec(102, "H264", 640, 400, 30, 0);
-
-static const cricket::VideoCodec kRedCodec(116, "red", 0, 0, 0, 0);
-static const cricket::VideoCodec kUlpfecCodec(117, "ulpfec", 0, 0, 0, 0);
-
-static const uint8_t kRedRtxPayloadType = 125;
-
-static const uint32_t kSsrcs1[] = {1};
-static const uint32_t kSsrcs3[] = {1, 2, 3};
-static const uint32_t kRtxSsrcs1[] = {4};
-static const uint32_t kIncomingUnsignalledSsrc = 0xC0FFEE;
-static const char kUnsupportedExtensionName[] =
-    "urn:ietf:params:rtp-hdrext:unsupported";
-
-void VerifyCodecHasDefaultFeedbackParams(const cricket::VideoCodec& codec) {
-  EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
-      cricket::kRtcpFbParamNack, cricket::kParamValueEmpty)));
-  EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
-      cricket::kRtcpFbParamNack, cricket::kRtcpFbNackParamPli)));
-  EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
-      cricket::kRtcpFbParamRemb, cricket::kParamValueEmpty)));
-  EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
-      cricket::kRtcpFbParamTransportCc, cricket::kParamValueEmpty)));
-  EXPECT_TRUE(codec.HasFeedbackParam(cricket::FeedbackParam(
-      cricket::kRtcpFbParamCcm, cricket::kRtcpFbCcmParamFir)));
-}
-
-static void CreateBlackFrame(webrtc::VideoFrame* video_frame,
-                             int width,
-                             int height) {
-  video_frame->CreateEmptyFrame(
-      width, height, width, (width + 1) / 2, (width + 1) / 2);
-  memset(video_frame->buffer(webrtc::kYPlane), 16,
-         video_frame->allocated_size(webrtc::kYPlane));
-  memset(video_frame->buffer(webrtc::kUPlane), 128,
-         video_frame->allocated_size(webrtc::kUPlane));
-  memset(video_frame->buffer(webrtc::kVPlane), 128,
-         video_frame->allocated_size(webrtc::kVPlane));
-}
-
-void VerifySendStreamHasRtxTypes(const webrtc::VideoSendStream::Config& config,
-                                 const std::map<int, int>& rtx_types) {
-  std::map<int, int>::const_iterator it;
-  it = rtx_types.find(config.encoder_settings.payload_type);
-  EXPECT_TRUE(it != rtx_types.end() &&
-              it->second == config.rtp.rtx.payload_type);
-
-  if (config.rtp.fec.red_rtx_payload_type != -1) {
-    it = rtx_types.find(config.rtp.fec.red_payload_type);
-    EXPECT_TRUE(it != rtx_types.end() &&
-                it->second == config.rtp.fec.red_rtx_payload_type);
-  }
-}
-}  // namespace
-
-namespace cricket {
-class WebRtcVideoEngine2Test : public ::testing::Test {
- public:
-  WebRtcVideoEngine2Test() : WebRtcVideoEngine2Test("") {}
-  explicit WebRtcVideoEngine2Test(const char* field_trials)
-      : WebRtcVideoEngine2Test(nullptr, field_trials) {}
-  WebRtcVideoEngine2Test(WebRtcVoiceEngine* voice_engine,
-                         const char* field_trials)
-      : override_field_trials_(field_trials),
-        call_(webrtc::Call::Create(webrtc::Call::Config())),
-        engine_() {
-    std::vector<VideoCodec> engine_codecs = engine_.codecs();
-    RTC_DCHECK(!engine_codecs.empty());
-    bool codec_set = false;
-    for (size_t i = 0; i < engine_codecs.size(); ++i) {
-      if (engine_codecs[i].name == "red") {
-        default_red_codec_ = engine_codecs[i];
-      } else if (engine_codecs[i].name == "ulpfec") {
-        default_ulpfec_codec_ = engine_codecs[i];
-      } else if (engine_codecs[i].name == "rtx") {
-        int associated_payload_type;
-        if (engine_codecs[i].GetParam(kCodecParamAssociatedPayloadType,
-                                      &associated_payload_type)) {
-          default_apt_rtx_types_[associated_payload_type] = engine_codecs[i].id;
-        }
-      } else if (!codec_set) {
-        default_codec_ = engine_codecs[i];
-        codec_set = true;
-      }
-    }
-
-    RTC_DCHECK(codec_set);
-  }
-
- protected:
-  VideoMediaChannel* SetUpForExternalEncoderFactory(
-      cricket::WebRtcVideoEncoderFactory* encoder_factory,
-      const std::vector<VideoCodec>& codecs);
-
-  VideoMediaChannel* SetUpForExternalDecoderFactory(
-      cricket::WebRtcVideoDecoderFactory* decoder_factory,
-      const std::vector<VideoCodec>& codecs);
-
-  void TestExtendedEncoderOveruse(bool use_external_encoder);
-
-  webrtc::test::ScopedFieldTrials override_field_trials_;
-  // Used in WebRtcVideoEngine2VoiceTest, but defined here so it's properly
-  // initialized when the constructor is called.
-  rtc::scoped_ptr<webrtc::Call> call_;
-  WebRtcVoiceEngine voice_engine_;
-  WebRtcVideoEngine2 engine_;
-  VideoCodec default_codec_;
-  VideoCodec default_red_codec_;
-  VideoCodec default_ulpfec_codec_;
-  std::map<int, int> default_apt_rtx_types_;
-};
-
-TEST_F(WebRtcVideoEngine2Test, DefaultRtxCodecHasAssociatedPayloadTypeSet) {
-  std::vector<VideoCodec> engine_codecs = engine_.codecs();
-  for (size_t i = 0; i < engine_codecs.size(); ++i) {
-    if (engine_codecs[i].name != kRtxCodecName)
-      continue;
-    int associated_payload_type;
-    EXPECT_TRUE(engine_codecs[i].GetParam(kCodecParamAssociatedPayloadType,
-                                          &associated_payload_type));
-    EXPECT_EQ(default_codec_.id, associated_payload_type);
-    return;
-  }
-  FAIL() << "No RTX codec found among default codecs.";
-}
-
-TEST_F(WebRtcVideoEngine2Test, SupportsTimestampOffsetHeaderExtension) {
-  RtpCapabilities capabilities = engine_.GetCapabilities();
-  ASSERT_FALSE(capabilities.header_extensions.empty());
-  for (const RtpHeaderExtension& extension : capabilities.header_extensions) {
-    if (extension.uri == kRtpTimestampOffsetHeaderExtension) {
-      EXPECT_EQ(kRtpTimestampOffsetHeaderExtensionDefaultId, extension.id);
-      return;
-    }
-  }
-  FAIL() << "Timestamp offset extension not in header-extension list.";
-}
-
-TEST_F(WebRtcVideoEngine2Test, SupportsAbsoluteSenderTimeHeaderExtension) {
-  RtpCapabilities capabilities = engine_.GetCapabilities();
-  ASSERT_FALSE(capabilities.header_extensions.empty());
-  for (const RtpHeaderExtension& extension : capabilities.header_extensions) {
-    if (extension.uri == kRtpAbsoluteSenderTimeHeaderExtension) {
-      EXPECT_EQ(kRtpAbsoluteSenderTimeHeaderExtensionDefaultId, extension.id);
-      return;
-    }
-  }
-  FAIL() << "Absolute Sender Time extension not in header-extension list.";
-}
-
-class WebRtcVideoEngine2WithSendSideBweTest : public WebRtcVideoEngine2Test {
- public:
-  WebRtcVideoEngine2WithSendSideBweTest()
-      : WebRtcVideoEngine2Test("WebRTC-SendSideBwe/Enabled/") {}
-};
-
-TEST_F(WebRtcVideoEngine2WithSendSideBweTest,
-       SupportsTransportSequenceNumberHeaderExtension) {
-  RtpCapabilities capabilities = engine_.GetCapabilities();
-  ASSERT_FALSE(capabilities.header_extensions.empty());
-  for (const RtpHeaderExtension& extension : capabilities.header_extensions) {
-    if (extension.uri == kRtpTransportSequenceNumberHeaderExtension) {
-      EXPECT_EQ(kRtpTransportSequenceNumberHeaderExtensionDefaultId,
-                extension.id);
-      return;
-    }
-  }
-  FAIL() << "Transport sequence number extension not in header-extension list.";
-}
-
-TEST_F(WebRtcVideoEngine2Test, SupportsVideoRotationHeaderExtension) {
-  RtpCapabilities capabilities = engine_.GetCapabilities();
-  ASSERT_FALSE(capabilities.header_extensions.empty());
-  for (const RtpHeaderExtension& extension : capabilities.header_extensions) {
-    if (extension.uri == kRtpVideoRotationHeaderExtension) {
-      EXPECT_EQ(kRtpVideoRotationHeaderExtensionDefaultId, extension.id);
-      return;
-    }
-  }
-  FAIL() << "Video Rotation extension not in header-extension list.";
-}
-
-TEST_F(WebRtcVideoEngine2Test, CVOSetHeaderExtensionBeforeCapturer) {
-  // Allocate the capturer first to prevent early destruction before channel's
-  // dtor is called.
-  cricket::FakeVideoCapturer capturer;
-
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
-  EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
-
-  // Add CVO extension.
-  const int id = 1;
-  parameters.extensions.push_back(
-      cricket::RtpHeaderExtension(kRtpVideoRotationHeaderExtension, id));
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-
-  // Set capturer.
-  EXPECT_TRUE(channel->SetCapturer(kSsrc, &capturer));
-
-  // Verify capturer has turned off applying rotation.
-  EXPECT_FALSE(capturer.GetApplyRotation());
-
-  // Verify removing header extension turns on applying rotation.
-  parameters.extensions.clear();
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-  EXPECT_TRUE(capturer.GetApplyRotation());
-}
-
-TEST_F(WebRtcVideoEngine2Test, CVOSetHeaderExtensionAfterCapturer) {
-  cricket::FakeVideoCapturer capturer;
-
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
-  EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(kSsrc)));
-
-  // Set capturer.
-  EXPECT_TRUE(channel->SetCapturer(kSsrc, &capturer));
-
-  // Add CVO extension.
-  const int id = 1;
-  parameters.extensions.push_back(
-      cricket::RtpHeaderExtension(kRtpVideoRotationHeaderExtension, id));
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-
-  // Verify capturer has turned off applying rotation.
-  EXPECT_FALSE(capturer.GetApplyRotation());
-
-  // Verify removing header extension turns on applying rotation.
-  parameters.extensions.clear();
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-  EXPECT_TRUE(capturer.GetApplyRotation());
-}
-
-TEST_F(WebRtcVideoEngine2Test, SetSendFailsBeforeSettingCodecs) {
-  engine_.Init();
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions()));
-
-  EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(123)));
-
-  EXPECT_FALSE(channel->SetSend(true))
-      << "Channel should not start without codecs.";
-  EXPECT_TRUE(channel->SetSend(false))
-      << "Channel should be stoppable even without set codecs.";
-}
-
-TEST_F(WebRtcVideoEngine2Test, GetStatsWithoutSendCodecsSetDoesNotCrash) {
-  engine_.Init();
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions()));
-  EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(123)));
-  VideoMediaInfo info;
-  channel->GetStats(&info);
-}
-
-TEST_F(WebRtcVideoEngine2Test, UseExternalFactoryForVp8WhenSupported) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
-
-  EXPECT_TRUE(
-      channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  ASSERT_EQ(1u, encoder_factory.encoders().size());
-  EXPECT_TRUE(channel->SetSend(true));
-
-  cricket::FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel->SetCapturer(kSsrc, &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(capturer.CaptureFrame());
-  EXPECT_TRUE_WAIT(encoder_factory.encoders()[0]->GetNumEncodedFrames() > 0,
-                   kTimeout);
-
-  // Sending one frame will have reallocated the encoder since input size
-  // changes from a small default to the actual frame width/height.
-  int num_created_encoders = encoder_factory.GetNumCreatedEncoders();
-  EXPECT_EQ(num_created_encoders, 2);
-
-  // Setting codecs of the same type should not reallocate any encoders
-  // (expecting a no-op).
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-  EXPECT_EQ(num_created_encoders, encoder_factory.GetNumCreatedEncoders());
-
-  // Remove stream previously added to free the external encoder instance.
-  EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
-  EXPECT_EQ(0u, encoder_factory.encoders().size());
-}
-
-void WebRtcVideoEngine2Test::TestExtendedEncoderOveruse(
-    bool use_external_encoder) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  rtc::scoped_ptr<VideoMediaChannel> channel;
-  FakeCall* fake_call = new FakeCall(webrtc::Call::Config());
-  call_.reset(fake_call);
-  if (use_external_encoder) {
-    channel.reset(
-        SetUpForExternalEncoderFactory(&encoder_factory, parameters.codecs));
-  } else {
-    engine_.Init();
-    channel.reset(engine_.CreateChannel(call_.get(), cricket::VideoOptions()));
-  }
-  ASSERT_TRUE(
-      channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-  EXPECT_TRUE(channel->SetSend(true));
-  FakeVideoSendStream* stream = fake_call->GetVideoSendStreams()[0];
-
-  EXPECT_EQ(use_external_encoder,
-            stream->GetConfig().encoder_settings.full_overuse_time);
-  // Remove stream previously added to free the external encoder instance.
-  EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
-}
-
-TEST_F(WebRtcVideoEngine2Test, EnablesFullEncoderTimeForExternalEncoders) {
-  TestExtendedEncoderOveruse(true);
-}
-
-TEST_F(WebRtcVideoEngine2Test, DisablesFullEncoderTimeForNonExternalEncoders) {
-  TestExtendedEncoderOveruse(false);
-}
-
-TEST_F(WebRtcVideoEngine2Test, CanConstructDecoderForVp9EncoderFactory) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP9, "VP9");
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kVp9Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  EXPECT_TRUE(
-      channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-}
-
-TEST_F(WebRtcVideoEngine2Test, PropagatesInputFrameTimestamp) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kVp8Codec);
-
-  FakeCall* fake_call = new FakeCall(webrtc::Call::Config());
-  call_.reset(fake_call);
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  EXPECT_TRUE(
-      channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-
-  FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel->SetCapturer(kSsrc, &capturer));
-  capturer.Start(cricket::VideoFormat(1280, 720,
-                                      cricket::VideoFormat::FpsToInterval(60),
-                                      cricket::FOURCC_I420));
-  channel->SetSend(true);
-
-  FakeVideoSendStream* stream = fake_call->GetVideoSendStreams()[0];
-
-  EXPECT_TRUE(capturer.CaptureFrame());
-  int64_t last_timestamp = stream->GetLastTimestamp();
-  for (int i = 0; i < 10; i++) {
-    EXPECT_TRUE(capturer.CaptureFrame());
-    int64_t timestamp = stream->GetLastTimestamp();
-    int64_t interval = timestamp - last_timestamp;
-
-    // Precision changes from nanosecond to millisecond.
-    // Allow error to be no more than 1.
-    EXPECT_NEAR(cricket::VideoFormat::FpsToInterval(60) / 1E6, interval, 1);
-
-    last_timestamp = timestamp;
-  }
-
-  capturer.Start(cricket::VideoFormat(1280, 720,
-                                      cricket::VideoFormat::FpsToInterval(30),
-                                      cricket::FOURCC_I420));
-
-  EXPECT_TRUE(capturer.CaptureFrame());
-  last_timestamp = stream->GetLastTimestamp();
-  for (int i = 0; i < 10; i++) {
-    EXPECT_TRUE(capturer.CaptureFrame());
-    int64_t timestamp = stream->GetLastTimestamp();
-    int64_t interval = timestamp - last_timestamp;
-
-    // Precision changes from nanosecond to millisecond.
-    // Allow error to be no more than 1.
-    EXPECT_NEAR(cricket::VideoFormat::FpsToInterval(30) / 1E6, interval, 1);
-
-    last_timestamp = timestamp;
-  }
-
-  // Remove stream previously added to free the external encoder instance.
-  EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
-}
-
-TEST_F(WebRtcVideoEngine2Test,
-       ProducesIncreasingTimestampsWithResetInputSources) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kVp8Codec);
-
-  FakeCall* fake_call = new FakeCall(webrtc::Call::Config());
-  call_.reset(fake_call);
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  EXPECT_TRUE(
-      channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  channel->SetSend(true);
-  FakeVideoSendStream* stream = fake_call->GetVideoSendStreams()[0];
-
-  FakeVideoCapturer capturer1;
-  EXPECT_TRUE(channel->SetCapturer(kSsrc, &capturer1));
-
-  cricket::CapturedFrame frame;
-  frame.width = 1280;
-  frame.height = 720;
-  frame.fourcc = cricket::FOURCC_I420;
-  frame.data_size = static_cast<uint32_t>(
-      cricket::VideoFrame::SizeOf(frame.width, frame.height));
-  rtc::scoped_ptr<char[]> data(new char[frame.data_size]);
-  frame.data = data.get();
-  memset(frame.data, 1, frame.data_size);
-  const int kInitialTimestamp = 123456;
-  frame.time_stamp = kInitialTimestamp;
-
-  // Deliver initial frame.
-  capturer1.SignalCapturedFrame(&frame);
-  // Deliver next frame 1 second later.
-  frame.time_stamp += rtc::kNumNanosecsPerSec;
-  rtc::Thread::Current()->SleepMs(1000);
-  capturer1.SignalCapturedFrame(&frame);
-
-  int64_t capturer1_last_timestamp = stream->GetLastTimestamp();
-  // Reset input source, should still be continuous even though input-frame
-  // timestamp is less than before.
-  FakeVideoCapturer capturer2;
-  EXPECT_TRUE(channel->SetCapturer(kSsrc, &capturer2));
-
-  rtc::Thread::Current()->SleepMs(1);
-  // Deliver with a timestamp (10 seconds) before the previous initial one,
-  // these should not be related at all anymore and it should still work fine.
-  frame.time_stamp = kInitialTimestamp - 10000;
-  capturer2.SignalCapturedFrame(&frame);
-
-  // New timestamp should be at least 1ms in the future and not old.
-  EXPECT_GT(stream->GetLastTimestamp(), capturer1_last_timestamp);
-
-  EXPECT_TRUE(channel->RemoveSendStream(kSsrc));
-}
-
-VideoMediaChannel* WebRtcVideoEngine2Test::SetUpForExternalEncoderFactory(
-    cricket::WebRtcVideoEncoderFactory* encoder_factory,
-    const std::vector<VideoCodec>& codecs) {
-  engine_.SetExternalEncoderFactory(encoder_factory);
-  engine_.Init();
-
-  VideoMediaChannel* channel =
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions());
-  cricket::VideoSendParameters parameters;
-  parameters.codecs = codecs;
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-
-  return channel;
-}
-
-VideoMediaChannel* WebRtcVideoEngine2Test::SetUpForExternalDecoderFactory(
-    cricket::WebRtcVideoDecoderFactory* decoder_factory,
-    const std::vector<VideoCodec>& codecs) {
-  engine_.SetExternalDecoderFactory(decoder_factory);
-  engine_.Init();
-
-  VideoMediaChannel* channel =
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions());
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs = codecs;
-  EXPECT_TRUE(channel->SetRecvParameters(parameters));
-
-  return channel;
-}
-
-TEST_F(WebRtcVideoEngine2Test, UsesSimulcastAdapterForVp8Factories) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kVp8Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
-
-  EXPECT_TRUE(
-      channel->AddSendStream(CreateSimStreamParams("cname", ssrcs)));
-  EXPECT_TRUE(channel->SetSend(true));
-
-  cricket::FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel->SetCapturer(ssrcs.front(), &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  EXPECT_GT(encoder_factory.encoders().size(), 1u);
-
-  // Verify that encoders are configured for simulcast through adapter
-  // (increasing resolution and only configured to send one stream each).
-  int prev_width = -1;
-  for (size_t i = 0; i < encoder_factory.encoders().size(); ++i) {
-    webrtc::VideoCodec codec_settings =
-        encoder_factory.encoders()[i]->GetCodecSettings();
-    EXPECT_EQ(0, codec_settings.numberOfSimulcastStreams);
-    EXPECT_GT(codec_settings.width, prev_width);
-    prev_width = codec_settings.width;
-  }
-
-  EXPECT_TRUE(channel->SetCapturer(ssrcs.front(), NULL));
-
-  channel.reset();
-  ASSERT_EQ(0u, encoder_factory.encoders().size());
-}
-
-TEST_F(WebRtcVideoEngine2Test, ChannelWithExternalH264CanChangeToInternalVp8) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kH264Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  EXPECT_TRUE(
-      channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  ASSERT_EQ(1u, encoder_factory.encoders().size());
-
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  EXPECT_TRUE(channel->SetSendParameters(parameters));
-  ASSERT_EQ(0u, encoder_factory.encoders().size());
-}
-
-TEST_F(WebRtcVideoEngine2Test,
-       DontUseExternalEncoderFactoryForUnsupportedCodecs) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kVp8Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  EXPECT_TRUE(
-      channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  // Make sure DestroyVideoEncoder was called on the factory.
-  ASSERT_EQ(0u, encoder_factory.encoders().size());
-}
-
-TEST_F(WebRtcVideoEngine2Test,
-       UsesSimulcastAdapterForVp8WithCombinedVP8AndH264Factory) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
-
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kVp8Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
-
-  EXPECT_TRUE(
-      channel->AddSendStream(CreateSimStreamParams("cname", ssrcs)));
-  EXPECT_TRUE(channel->SetSend(true));
-
-  // Send a fake frame, or else the media engine will configure the simulcast
-  // encoder adapter at a low-enough size that it'll only create a single
-  // encoder layer.
-  cricket::FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel->SetCapturer(ssrcs.front(), &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  ASSERT_GT(encoder_factory.encoders().size(), 1u);
-  EXPECT_EQ(webrtc::kVideoCodecVP8,
-            encoder_factory.encoders()[0]->GetCodecSettings().codecType);
-
-  channel.reset();
-  // Make sure DestroyVideoEncoder was called on the factory.
-  EXPECT_EQ(0u, encoder_factory.encoders().size());
-}
-
-TEST_F(WebRtcVideoEngine2Test,
-       DestroysNonSimulcastEncoderFromCombinedVP8AndH264Factory) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8, "VP8");
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
-
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kH264Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  EXPECT_TRUE(
-      channel->AddSendStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  ASSERT_EQ(1u, encoder_factory.encoders().size());
-  EXPECT_EQ(webrtc::kVideoCodecH264,
-            encoder_factory.encoders()[0]->GetCodecSettings().codecType);
-
-  channel.reset();
-  // Make sure DestroyVideoEncoder was called on the factory.
-  ASSERT_EQ(0u, encoder_factory.encoders().size());
-}
-
-TEST_F(WebRtcVideoEngine2Test, SimulcastDisabledForH264) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kH264Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalEncoderFactory(&encoder_factory, codecs));
-
-  const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
-  EXPECT_TRUE(
-      channel->AddSendStream(cricket::CreateSimStreamParams("cname", ssrcs)));
-
-  // Send a frame of 720p. This should trigger a "real" encoder initialization.
-  cricket::VideoFormat format(
-      1280, 720, cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420);
-  cricket::FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel->SetCapturer(ssrcs[0], &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(format));
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  ASSERT_EQ(1u, encoder_factory.encoders().size());
-  FakeWebRtcVideoEncoder* encoder = encoder_factory.encoders()[0];
-  EXPECT_EQ(webrtc::kVideoCodecH264, encoder->GetCodecSettings().codecType);
-  EXPECT_EQ(1u, encoder->GetCodecSettings().numberOfSimulcastStreams);
-  EXPECT_TRUE(channel->SetCapturer(ssrcs[0], nullptr));
-}
-
-// Test that external codecs are added to the end of the supported codec list.
-TEST_F(WebRtcVideoEngine2Test, ReportSupportedExternalCodecs) {
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecUnknown,
-                                             "FakeExternalCodec");
-  engine_.SetExternalEncoderFactory(&encoder_factory);
-  engine_.Init();
-
-  std::vector<cricket::VideoCodec> codecs(engine_.codecs());
-  ASSERT_GE(codecs.size(), 2u);
-  cricket::VideoCodec internal_codec = codecs.front();
-  cricket::VideoCodec external_codec = codecs.back();
-
-  // The external codec will appear at last.
-  EXPECT_EQ("VP8", internal_codec.name);
-  EXPECT_EQ("FakeExternalCodec", external_codec.name);
-}
-
-TEST_F(WebRtcVideoEngine2Test, RegisterExternalDecodersIfSupported) {
-  cricket::FakeWebRtcVideoDecoderFactory decoder_factory;
-  decoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecVP8);
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalDecoderFactory(&decoder_factory, parameters.codecs));
-
-  EXPECT_TRUE(
-      channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  ASSERT_EQ(1u, decoder_factory.decoders().size());
-
-  // Setting codecs of the same type should not reallocate the decoder.
-  EXPECT_TRUE(channel->SetRecvParameters(parameters));
-  EXPECT_EQ(1, decoder_factory.GetNumCreatedDecoders());
-
-  // Remove stream previously added to free the external decoder instance.
-  EXPECT_TRUE(channel->RemoveRecvStream(kSsrc));
-  EXPECT_EQ(0u, decoder_factory.decoders().size());
-}
-
-// Verifies that we can set up decoders that are not internally supported.
-TEST_F(WebRtcVideoEngine2Test, RegisterExternalH264DecoderIfSupported) {
-  // TODO(pbos): Do not assume that encoder/decoder support is symmetric. We
-  // can't even query the WebRtcVideoDecoderFactory for supported codecs.
-  // For now we add a FakeWebRtcVideoEncoderFactory to add H264 to supported
-  // codecs.
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory;
-  encoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264, "H264");
-  engine_.SetExternalEncoderFactory(&encoder_factory);
-  cricket::FakeWebRtcVideoDecoderFactory decoder_factory;
-  decoder_factory.AddSupportedVideoCodecType(webrtc::kVideoCodecH264);
-  std::vector<cricket::VideoCodec> codecs;
-  codecs.push_back(kH264Codec);
-
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      SetUpForExternalDecoderFactory(&decoder_factory, codecs));
-
-  EXPECT_TRUE(
-      channel->AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrc)));
-  ASSERT_EQ(1u, decoder_factory.decoders().size());
-}
-
-class WebRtcVideoChannel2BaseTest
-    : public VideoMediaChannelTest<WebRtcVideoEngine2, WebRtcVideoChannel2> {
- protected:
-  typedef VideoMediaChannelTest<WebRtcVideoEngine2, WebRtcVideoChannel2> Base;
-
-  cricket::VideoCodec DefaultCodec() override { return kVp8Codec; }
-};
-
-#define WEBRTC_BASE_TEST(test) \
-  TEST_F(WebRtcVideoChannel2BaseTest, test) { Base::test(); }
-
-#define WEBRTC_DISABLED_BASE_TEST(test) \
-  TEST_F(WebRtcVideoChannel2BaseTest, DISABLED_##test) { Base::test(); }
-
-WEBRTC_BASE_TEST(SetSend);
-WEBRTC_BASE_TEST(SetSendWithoutCodecs);
-WEBRTC_BASE_TEST(SetSendSetsTransportBufferSizes);
-
-WEBRTC_BASE_TEST(GetStats);
-WEBRTC_BASE_TEST(GetStatsMultipleRecvStreams);
-WEBRTC_BASE_TEST(GetStatsMultipleSendStreams);
-
-WEBRTC_BASE_TEST(SetSendBandwidth);
-
-WEBRTC_BASE_TEST(SetSendSsrc);
-WEBRTC_BASE_TEST(SetSendSsrcAfterSetCodecs);
-
-WEBRTC_BASE_TEST(SetSink);
-
-WEBRTC_BASE_TEST(AddRemoveSendStreams);
-
-WEBRTC_BASE_TEST(SimulateConference);
-
-WEBRTC_BASE_TEST(AddRemoveCapturer);
-
-WEBRTC_BASE_TEST(RemoveCapturerWithoutAdd);
-
-WEBRTC_BASE_TEST(AddRemoveCapturerMultipleSources);
-
-// TODO(pbos): Figure out why this fails so often.
-WEBRTC_DISABLED_BASE_TEST(HighAspectHighHeightCapturer);
-
-WEBRTC_BASE_TEST(RejectEmptyStreamParams);
-
-WEBRTC_BASE_TEST(AdaptResolution16x10);
-
-WEBRTC_BASE_TEST(AdaptResolution4x3);
-
-// TODO(juberti): Restore this test once we support sending 0 fps.
-WEBRTC_DISABLED_BASE_TEST(AdaptDropAllFrames);
-// TODO(juberti): Understand why we get decode errors on this test.
-WEBRTC_DISABLED_BASE_TEST(AdaptFramerate);
-
-WEBRTC_BASE_TEST(SendsLowerResolutionOnSmallerFrames);
-
-WEBRTC_BASE_TEST(MuteStream);
-
-WEBRTC_BASE_TEST(MultipleSendStreams);
-
-TEST_F(WebRtcVideoChannel2BaseTest, SendAndReceiveVp8Vga) {
-  SendAndReceive(cricket::VideoCodec(100, "VP8", 640, 400, 30, 0));
-}
-
-TEST_F(WebRtcVideoChannel2BaseTest, SendAndReceiveVp8Qvga) {
-  SendAndReceive(cricket::VideoCodec(100, "VP8", 320, 200, 30, 0));
-}
-
-TEST_F(WebRtcVideoChannel2BaseTest, SendAndReceiveVp8SvcQqvga) {
-  SendAndReceive(cricket::VideoCodec(100, "VP8", 160, 100, 30, 0));
-}
-
-TEST_F(WebRtcVideoChannel2BaseTest, TwoStreamsSendAndReceive) {
-  Base::TwoStreamsSendAndReceive(kVp8Codec);
-}
-
-TEST_F(WebRtcVideoChannel2BaseTest, TwoStreamsReUseFirstStream) {
-  Base::TwoStreamsReUseFirstStream(kVp8Codec);
-}
-
-class WebRtcVideoChannel2Test : public WebRtcVideoEngine2Test {
- public:
-  WebRtcVideoChannel2Test() : WebRtcVideoChannel2Test("") {}
-  explicit WebRtcVideoChannel2Test(const char* field_trials)
-      : WebRtcVideoEngine2Test(field_trials), last_ssrc_(0) {}
-  void SetUp() override {
-    fake_call_.reset(new FakeCall(webrtc::Call::Config()));
-    engine_.Init();
-    channel_.reset(
-        engine_.CreateChannel(fake_call_.get(), cricket::VideoOptions()));
-    last_ssrc_ = 123;
-    send_parameters_.codecs = engine_.codecs();
-    recv_parameters_.codecs = engine_.codecs();
-    ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
-  }
-
- protected:
-  FakeVideoSendStream* AddSendStream() {
-    return AddSendStream(StreamParams::CreateLegacy(++last_ssrc_));
-  }
-
-  FakeVideoSendStream* AddSendStream(const StreamParams& sp) {
-    size_t num_streams = fake_call_->GetVideoSendStreams().size();
-    EXPECT_TRUE(channel_->AddSendStream(sp));
-    std::vector<FakeVideoSendStream*> streams =
-        fake_call_->GetVideoSendStreams();
-    EXPECT_EQ(num_streams + 1, streams.size());
-    return streams[streams.size() - 1];
-  }
-
-  std::vector<FakeVideoSendStream*> GetFakeSendStreams() {
-    return fake_call_->GetVideoSendStreams();
-  }
-
-  FakeVideoReceiveStream* AddRecvStream() {
-    return AddRecvStream(StreamParams::CreateLegacy(++last_ssrc_));
-  }
-
-  FakeVideoReceiveStream* AddRecvStream(const StreamParams& sp) {
-    size_t num_streams = fake_call_->GetVideoReceiveStreams().size();
-    EXPECT_TRUE(channel_->AddRecvStream(sp));
-    std::vector<FakeVideoReceiveStream*> streams =
-        fake_call_->GetVideoReceiveStreams();
-    EXPECT_EQ(num_streams + 1, streams.size());
-    return streams[streams.size() - 1];
-  }
-
-  void SetSendCodecsShouldWorkForBitrates(const char* min_bitrate_kbps,
-                                          int expected_min_bitrate_bps,
-                                          const char* start_bitrate_kbps,
-                                          int expected_start_bitrate_bps,
-                                          const char* max_bitrate_kbps,
-                                          int expected_max_bitrate_bps) {
-    auto& codecs = send_parameters_.codecs;
-    codecs.clear();
-    codecs.push_back(kVp8Codec);
-    codecs[0].params[kCodecParamMinBitrate] = min_bitrate_kbps;
-    codecs[0].params[kCodecParamStartBitrate] = start_bitrate_kbps;
-    codecs[0].params[kCodecParamMaxBitrate] = max_bitrate_kbps;
-    EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-    EXPECT_EQ(expected_min_bitrate_bps,
-              fake_call_->GetConfig().bitrate_config.min_bitrate_bps);
-    EXPECT_EQ(expected_start_bitrate_bps,
-              fake_call_->GetConfig().bitrate_config.start_bitrate_bps);
-    EXPECT_EQ(expected_max_bitrate_bps,
-              fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
-  }
-
-  void TestSetSendRtpHeaderExtensions(const std::string& cricket_ext,
-                                      const std::string& webrtc_ext) {
-    // Enable extension.
-    const int id = 1;
-    cricket::VideoSendParameters parameters = send_parameters_;
-    parameters.extensions.push_back(
-        cricket::RtpHeaderExtension(cricket_ext, id));
-    EXPECT_TRUE(channel_->SetSendParameters(parameters));
-    FakeVideoSendStream* send_stream =
-        AddSendStream(cricket::StreamParams::CreateLegacy(123));
-
-    // Verify the send extension id.
-    ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
-    EXPECT_EQ(id, send_stream->GetConfig().rtp.extensions[0].id);
-    EXPECT_EQ(webrtc_ext, send_stream->GetConfig().rtp.extensions[0].name);
-    // Verify call with same set of extensions returns true.
-    EXPECT_TRUE(channel_->SetSendParameters(parameters));
-    // Verify that SetSendRtpHeaderExtensions doesn't implicitly add them for
-    // receivers.
-    EXPECT_TRUE(AddRecvStream(cricket::StreamParams::CreateLegacy(123))
-                    ->GetConfig()
-                    .rtp.extensions.empty());
-
-    // Verify that existing RTP header extensions can be removed.
-    EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-    ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
-    send_stream = fake_call_->GetVideoSendStreams()[0];
-    EXPECT_TRUE(send_stream->GetConfig().rtp.extensions.empty());
-
-    // Verify that adding receive RTP header extensions adds them for existing
-    // streams.
-    EXPECT_TRUE(channel_->SetSendParameters(parameters));
-    send_stream = fake_call_->GetVideoSendStreams()[0];
-    ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
-    EXPECT_EQ(id, send_stream->GetConfig().rtp.extensions[0].id);
-    EXPECT_EQ(webrtc_ext, send_stream->GetConfig().rtp.extensions[0].name);
-  }
-
-  void TestSetRecvRtpHeaderExtensions(const std::string& cricket_ext,
-                                      const std::string& webrtc_ext) {
-    // Enable extension.
-    const int id = 1;
-    cricket::VideoRecvParameters parameters = recv_parameters_;
-    parameters.extensions.push_back(
-        cricket::RtpHeaderExtension(cricket_ext, id));
-    EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-
-    FakeVideoReceiveStream* recv_stream =
-        AddRecvStream(cricket::StreamParams::CreateLegacy(123));
-
-    // Verify the recv extension id.
-    ASSERT_EQ(1u, recv_stream->GetConfig().rtp.extensions.size());
-    EXPECT_EQ(id, recv_stream->GetConfig().rtp.extensions[0].id);
-    EXPECT_EQ(webrtc_ext, recv_stream->GetConfig().rtp.extensions[0].name);
-    // Verify call with same set of extensions returns true.
-    EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-
-    // Verify that SetRecvRtpHeaderExtensions doesn't implicitly add them for
-    // senders.
-    EXPECT_TRUE(AddSendStream(cricket::StreamParams::CreateLegacy(123))
-                    ->GetConfig()
-                    .rtp.extensions.empty());
-
-    // Verify that existing RTP header extensions can be removed.
-    EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-    ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
-    recv_stream = fake_call_->GetVideoReceiveStreams()[0];
-    EXPECT_TRUE(recv_stream->GetConfig().rtp.extensions.empty());
-
-    // Verify that adding receive RTP header extensions adds them for existing
-    // streams.
-    EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-    recv_stream = fake_call_->GetVideoReceiveStreams()[0];
-    ASSERT_EQ(1u, recv_stream->GetConfig().rtp.extensions.size());
-    EXPECT_EQ(id, recv_stream->GetConfig().rtp.extensions[0].id);
-    EXPECT_EQ(webrtc_ext, recv_stream->GetConfig().rtp.extensions[0].name);
-  }
-
-  void TestExtensionFilter(const std::vector<std::string>& extensions,
-                           const std::string& expected_extension) {
-    cricket::VideoSendParameters parameters = send_parameters_;
-    int expected_id = -1;
-    int id = 1;
-    for (const std::string& extension : extensions) {
-      if (extension == expected_extension)
-        expected_id = id;
-      parameters.extensions.push_back(
-          cricket::RtpHeaderExtension(extension, id++));
-    }
-    EXPECT_TRUE(channel_->SetSendParameters(parameters));
-    FakeVideoSendStream* send_stream =
-        AddSendStream(cricket::StreamParams::CreateLegacy(123));
-
-    // Verify that only one of them has been set, and that it is the one with
-    // highest priority (transport sequence number).
-    ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
-    EXPECT_EQ(expected_id, send_stream->GetConfig().rtp.extensions[0].id);
-    EXPECT_EQ(expected_extension,
-              send_stream->GetConfig().rtp.extensions[0].name);
-  }
-
-  void TestCpuAdaptation(bool enable_overuse, bool is_screenshare);
-  void TestReceiverLocalSsrcConfiguration(bool receiver_first);
-  void TestReceiveUnsignalledSsrcPacket(uint8_t payload_type,
-                                        bool expect_created_receive_stream);
-
-  FakeVideoSendStream* SetDenoisingOption(
-      const cricket::VideoSendParameters& parameters, bool enabled) {
-    cricket::VideoSendParameters params = parameters;
-    params.options.video_noise_reduction = rtc::Optional<bool>(enabled);
-    channel_->SetSendParameters(params);
-    return fake_call_->GetVideoSendStreams().back();
-  }
-
-  FakeVideoSendStream* SetUpSimulcast(bool enabled, bool with_rtx) {
-    const int kRtxSsrcOffset = 0xDEADBEEF;
-    last_ssrc_ += 3;
-    std::vector<uint32_t> ssrcs;
-    std::vector<uint32_t> rtx_ssrcs;
-    uint32_t num_streams = enabled ? 3 : 1;
-    for (uint32_t i = 0; i < num_streams; ++i) {
-      uint32_t ssrc = last_ssrc_ + i;
-      ssrcs.push_back(ssrc);
-      if (with_rtx) {
-        rtx_ssrcs.push_back(ssrc + kRtxSsrcOffset);
-      }
-    }
-    if (with_rtx) {
-      return AddSendStream(
-          cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
-    }
-    return AddSendStream(CreateSimStreamParams("cname", ssrcs));
-  }
-
-  rtc::scoped_ptr<FakeCall> fake_call_;
-  rtc::scoped_ptr<VideoMediaChannel> channel_;
-  cricket::VideoSendParameters send_parameters_;
-  cricket::VideoRecvParameters recv_parameters_;
-  uint32_t last_ssrc_;
-};
-
-TEST_F(WebRtcVideoChannel2Test, SetsSyncGroupFromSyncLabel) {
-  const uint32_t kVideoSsrc = 123;
-  const std::string kSyncLabel = "AvSyncLabel";
-
-  cricket::StreamParams sp = cricket::StreamParams::CreateLegacy(kVideoSsrc);
-  sp.sync_label = kSyncLabel;
-  EXPECT_TRUE(channel_->AddRecvStream(sp));
-
-  EXPECT_EQ(1, fake_call_->GetVideoReceiveStreams().size());
-  EXPECT_EQ(kSyncLabel,
-            fake_call_->GetVideoReceiveStreams()[0]->GetConfig().sync_group)
-      << "SyncGroup should be set based on sync_label";
-}
-
-TEST_F(WebRtcVideoChannel2Test, RecvStreamWithSimAndRtx) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs = engine_.codecs();
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_TRUE(channel_->SetSend(true));
-  parameters.options.conference_mode = rtc::Optional<bool>(true);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-
-  // Send side.
-  const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
-  const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
-  FakeVideoSendStream* send_stream = AddSendStream(
-      cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
-
-  ASSERT_EQ(rtx_ssrcs.size(), send_stream->GetConfig().rtp.rtx.ssrcs.size());
-  for (size_t i = 0; i < rtx_ssrcs.size(); ++i)
-    EXPECT_EQ(rtx_ssrcs[i], send_stream->GetConfig().rtp.rtx.ssrcs[i]);
-
-  // Receiver side.
-  FakeVideoReceiveStream* recv_stream = AddRecvStream(
-      cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
-  ASSERT_GT(recv_stream->GetConfig().rtp.rtx.size(), 0u)
-      << "No SSRCs for RTX configured by AddRecvStream.";
-  EXPECT_EQ(rtx_ssrcs[0],
-            recv_stream->GetConfig().rtp.rtx.begin()->second.ssrc);
-  // TODO(pbos): Make sure we set the RTX for correct payloads etc.
-}
-
-TEST_F(WebRtcVideoChannel2Test, RecvStreamWithRtx) {
-  // Setup one channel with an associated RTX stream.
-  cricket::StreamParams params =
-      cricket::StreamParams::CreateLegacy(kSsrcs1[0]);
-  params.AddFidSsrc(kSsrcs1[0], kRtxSsrcs1[0]);
-  FakeVideoReceiveStream* recv_stream = AddRecvStream(params);
-  EXPECT_EQ(kRtxSsrcs1[0],
-            recv_stream->GetConfig().rtp.rtx.begin()->second.ssrc);
-}
-
-TEST_F(WebRtcVideoChannel2Test, RecvStreamNoRtx) {
-  // Setup one channel without an associated RTX stream.
-  cricket::StreamParams params =
-      cricket::StreamParams::CreateLegacy(kSsrcs1[0]);
-  FakeVideoReceiveStream* recv_stream = AddRecvStream(params);
-  ASSERT_TRUE(recv_stream->GetConfig().rtp.rtx.empty());
-}
-
-TEST_F(WebRtcVideoChannel2Test, NoHeaderExtesionsByDefault) {
-  FakeVideoSendStream* send_stream =
-      AddSendStream(cricket::StreamParams::CreateLegacy(kSsrcs1[0]));
-  ASSERT_TRUE(send_stream->GetConfig().rtp.extensions.empty());
-
-  FakeVideoReceiveStream* recv_stream =
-      AddRecvStream(cricket::StreamParams::CreateLegacy(kSsrcs1[0]));
-  ASSERT_TRUE(recv_stream->GetConfig().rtp.extensions.empty());
-}
-
-// Test support for RTP timestamp offset header extension.
-TEST_F(WebRtcVideoChannel2Test, SendRtpTimestampOffsetHeaderExtensions) {
-  TestSetSendRtpHeaderExtensions(kRtpTimestampOffsetHeaderExtension,
-                                 webrtc::RtpExtension::kTOffset);
-}
-TEST_F(WebRtcVideoChannel2Test, RecvRtpTimestampOffsetHeaderExtensions) {
-  TestSetRecvRtpHeaderExtensions(kRtpTimestampOffsetHeaderExtension,
-                                 webrtc::RtpExtension::kTOffset);
-}
-
-// Test support for absolute send time header extension.
-TEST_F(WebRtcVideoChannel2Test, SendAbsoluteSendTimeHeaderExtensions) {
-  TestSetSendRtpHeaderExtensions(kRtpAbsoluteSenderTimeHeaderExtension,
-                                 webrtc::RtpExtension::kAbsSendTime);
-}
-TEST_F(WebRtcVideoChannel2Test, RecvAbsoluteSendTimeHeaderExtensions) {
-  TestSetRecvRtpHeaderExtensions(kRtpAbsoluteSenderTimeHeaderExtension,
-                                 webrtc::RtpExtension::kAbsSendTime);
-}
-
-TEST_F(WebRtcVideoChannel2Test, FiltersExtensionsPicksTransportSeqNum) {
-  // Enable three redundant extensions.
-  std::vector<std::string> extensions;
-  extensions.push_back(kRtpAbsoluteSenderTimeHeaderExtension);
-  extensions.push_back(kRtpTimestampOffsetHeaderExtension);
-  extensions.push_back(kRtpTransportSequenceNumberHeaderExtension);
-  TestExtensionFilter(extensions, kRtpTransportSequenceNumberHeaderExtension);
-}
-
-TEST_F(WebRtcVideoChannel2Test, FiltersExtensionsPicksAbsSendTime) {
-  // Enable two redundant extensions.
-  std::vector<std::string> extensions;
-  extensions.push_back(kRtpAbsoluteSenderTimeHeaderExtension);
-  extensions.push_back(kRtpTimestampOffsetHeaderExtension);
-  TestExtensionFilter(extensions, kRtpAbsoluteSenderTimeHeaderExtension);
-}
-
-class WebRtcVideoChannel2WithSendSideBweTest : public WebRtcVideoChannel2Test {
- public:
-  WebRtcVideoChannel2WithSendSideBweTest()
-      : WebRtcVideoChannel2Test("WebRTC-SendSideBwe/Enabled/") {}
-};
-
-// Test support for transport sequence number header extension.
-TEST_F(WebRtcVideoChannel2WithSendSideBweTest,
-       SendTransportSequenceNumberHeaderExtensions) {
-  TestSetSendRtpHeaderExtensions(
-      kRtpTransportSequenceNumberHeaderExtension,
-      webrtc::RtpExtension::kTransportSequenceNumber);
-}
-TEST_F(WebRtcVideoChannel2WithSendSideBweTest,
-       RecvTransportSequenceNumberHeaderExtensions) {
-  TestSetRecvRtpHeaderExtensions(
-      kRtpTransportSequenceNumberHeaderExtension,
-      webrtc::RtpExtension::kTransportSequenceNumber);
-}
-
-// Test support for video rotation header extension.
-TEST_F(WebRtcVideoChannel2Test, SendVideoRotationHeaderExtensions) {
-  TestSetSendRtpHeaderExtensions(kRtpVideoRotationHeaderExtension,
-                                 webrtc::RtpExtension::kVideoRotation);
-}
-TEST_F(WebRtcVideoChannel2Test, RecvVideoRotationHeaderExtensions) {
-  TestSetRecvRtpHeaderExtensions(kRtpVideoRotationHeaderExtension,
-                                 webrtc::RtpExtension::kVideoRotation);
-}
-
-TEST_F(WebRtcVideoChannel2Test, IdenticalSendExtensionsDoesntRecreateStream) {
-  const int kAbsSendTimeId = 1;
-  const int kVideoRotationId = 2;
-  send_parameters_.extensions.push_back(cricket::RtpHeaderExtension(
-      kRtpAbsoluteSenderTimeHeaderExtension, kAbsSendTimeId));
-  send_parameters_.extensions.push_back(cricket::RtpHeaderExtension(
-      kRtpVideoRotationHeaderExtension, kVideoRotationId));
-
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-  FakeVideoSendStream* send_stream =
-      AddSendStream(cricket::StreamParams::CreateLegacy(123));
-
-  EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
-  ASSERT_EQ(2u, send_stream->GetConfig().rtp.extensions.size());
-
-  // Setting the same extensions (even if in different order) shouldn't
-  // reallocate the stream.
-  std::reverse(send_parameters_.extensions.begin(),
-               send_parameters_.extensions.end());
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  EXPECT_EQ(1, fake_call_->GetNumCreatedSendStreams());
-
-  // Setting different extensions should recreate the stream.
-  send_parameters_.extensions.resize(1);
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  EXPECT_EQ(2, fake_call_->GetNumCreatedSendStreams());
-}
-
-TEST_F(WebRtcVideoChannel2Test, IdenticalRecvExtensionsDoesntRecreateStream) {
-  const int kTOffsetId = 1;
-  const int kAbsSendTimeId = 2;
-  const int kVideoRotationId = 3;
-  recv_parameters_.extensions.push_back(cricket::RtpHeaderExtension(
-      kRtpAbsoluteSenderTimeHeaderExtension, kAbsSendTimeId));
-  recv_parameters_.extensions.push_back(cricket::RtpHeaderExtension(
-      kRtpTimestampOffsetHeaderExtension, kTOffsetId));
-  recv_parameters_.extensions.push_back(cricket::RtpHeaderExtension(
-      kRtpVideoRotationHeaderExtension, kVideoRotationId));
-
-  EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-  FakeVideoReceiveStream* recv_stream =
-      AddRecvStream(cricket::StreamParams::CreateLegacy(123));
-
-  EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
-  ASSERT_EQ(3u, recv_stream->GetConfig().rtp.extensions.size());
-
-  // Setting the same extensions (even if in different order) shouldn't
-  // reallocate the stream.
-  std::reverse(recv_parameters_.extensions.begin(),
-               recv_parameters_.extensions.end());
-  EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-
-  EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
-
-  // Setting different extensions should recreate the stream.
-  recv_parameters_.extensions.resize(1);
-  EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-
-  EXPECT_EQ(2, fake_call_->GetNumCreatedReceiveStreams());
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetSendRtpHeaderExtensionsExcludeUnsupportedExtensions) {
-  const int kUnsupportedId = 1;
-  const int kTOffsetId = 2;
-
-  send_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(kUnsupportedExtensionName, kUnsupportedId));
-  send_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(webrtc::RtpExtension::kTOffset, kTOffsetId));
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-  FakeVideoSendStream* send_stream =
-      AddSendStream(cricket::StreamParams::CreateLegacy(123));
-
-  // Only timestamp offset extension is set to send stream,
-  // unsupported rtp extension is ignored.
-  ASSERT_EQ(1u, send_stream->GetConfig().rtp.extensions.size());
-  EXPECT_STREQ(webrtc::RtpExtension::kTOffset,
-               send_stream->GetConfig().rtp.extensions[0].name.c_str());
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetRecvRtpHeaderExtensionsExcludeUnsupportedExtensions) {
-  const int kUnsupportedId = 1;
-  const int kTOffsetId = 2;
-
-  recv_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(kUnsupportedExtensionName, kUnsupportedId));
-  recv_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(webrtc::RtpExtension::kTOffset, kTOffsetId));
-  EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-  FakeVideoReceiveStream* recv_stream =
-      AddRecvStream(cricket::StreamParams::CreateLegacy(123));
-
-  // Only timestamp offset extension is set to receive stream,
-  // unsupported rtp extension is ignored.
-  ASSERT_EQ(1u, recv_stream->GetConfig().rtp.extensions.size());
-  EXPECT_STREQ(webrtc::RtpExtension::kTOffset,
-               recv_stream->GetConfig().rtp.extensions[0].name.c_str());
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendRtpHeaderExtensionsRejectsIncorrectIds) {
-  const int kIncorrectIds[] = {-2, -1, 0, 15, 16};
-  for (size_t i = 0; i < arraysize(kIncorrectIds); ++i) {
-    send_parameters_.extensions.push_back(cricket::RtpHeaderExtension(
-        webrtc::RtpExtension::kTOffset, kIncorrectIds[i]));
-    EXPECT_FALSE(channel_->SetSendParameters(send_parameters_))
-        << "Bad extension id '" << kIncorrectIds[i] << "' accepted.";
-  }
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvRtpHeaderExtensionsRejectsIncorrectIds) {
-  const int kIncorrectIds[] = {-2, -1, 0, 15, 16};
-  for (size_t i = 0; i < arraysize(kIncorrectIds); ++i) {
-    recv_parameters_.extensions.push_back(cricket::RtpHeaderExtension(
-        webrtc::RtpExtension::kTOffset, kIncorrectIds[i]));
-    EXPECT_FALSE(channel_->SetRecvParameters(recv_parameters_))
-        << "Bad extension id '" << kIncorrectIds[i] << "' accepted.";
-  }
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendRtpHeaderExtensionsRejectsDuplicateIds) {
-  const int id = 1;
-  send_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(webrtc::RtpExtension::kTOffset, id));
-  send_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(kRtpAbsoluteSenderTimeHeaderExtension, id));
-  EXPECT_FALSE(channel_->SetSendParameters(send_parameters_));
-
-  // Duplicate entries are also not supported.
-  send_parameters_.extensions.clear();
-  send_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(webrtc::RtpExtension::kTOffset, id));
-  send_parameters_.extensions.push_back(send_parameters_.extensions.back());
-  EXPECT_FALSE(channel_->SetSendParameters(send_parameters_));
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvRtpHeaderExtensionsRejectsDuplicateIds) {
-  const int id = 1;
-  recv_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(webrtc::RtpExtension::kTOffset, id));
-  recv_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(kRtpAbsoluteSenderTimeHeaderExtension, id));
-  EXPECT_FALSE(channel_->SetRecvParameters(recv_parameters_));
-
-  // Duplicate entries are also not supported.
-  recv_parameters_.extensions.clear();
-  recv_parameters_.extensions.push_back(
-      cricket::RtpHeaderExtension(webrtc::RtpExtension::kTOffset, id));
-  recv_parameters_.extensions.push_back(recv_parameters_.extensions.back());
-  EXPECT_FALSE(channel_->SetRecvParameters(recv_parameters_));
-}
-
-TEST_F(WebRtcVideoChannel2Test, AddRecvStreamOnlyUsesOneReceiveStream) {
-  EXPECT_TRUE(channel_->AddRecvStream(cricket::StreamParams::CreateLegacy(1)));
-  EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size());
-}
-
-TEST_F(WebRtcVideoChannel2Test, RtcpIsCompoundByDefault) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  EXPECT_EQ(webrtc::RtcpMode::kCompound, stream->GetConfig().rtp.rtcp_mode);
-}
-
-TEST_F(WebRtcVideoChannel2Test, RembIsEnabledByDefault) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  EXPECT_TRUE(stream->GetConfig().rtp.remb);
-}
-
-TEST_F(WebRtcVideoChannel2Test, TransportCcIsEnabledByDefault) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
-}
-
-TEST_F(WebRtcVideoChannel2Test, RembCanBeEnabledAndDisabled) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  EXPECT_TRUE(stream->GetConfig().rtp.remb);
-
-  // Verify that REMB is turned off when send(!) codecs without REMB are set.
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  EXPECT_TRUE(parameters.codecs[0].feedback_params.params().empty());
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  stream = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_FALSE(stream->GetConfig().rtp.remb);
-
-  // Verify that REMB is turned on when setting default codecs since the
-  // default codecs have REMB enabled.
-  parameters.codecs = engine_.codecs();
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  stream = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_TRUE(stream->GetConfig().rtp.remb);
-}
-
-TEST_F(WebRtcVideoChannel2Test, TransportCcCanBeEnabledAndDisabled) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
-
-  // Verify that transport cc feedback is turned off when send(!) codecs without
-  // transport cc feedback are set.
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  EXPECT_TRUE(parameters.codecs[0].feedback_params.params().empty());
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  stream = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_FALSE(stream->GetConfig().rtp.transport_cc);
-
-  // Verify that transport cc feedback is turned on when setting default codecs
-  // since the default codecs have transport cc feedback enabled.
-  parameters.codecs = engine_.codecs();
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  stream = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_TRUE(stream->GetConfig().rtp.transport_cc);
-}
-
-TEST_F(WebRtcVideoChannel2Test, NackIsEnabledByDefault) {
-  VerifyCodecHasDefaultFeedbackParams(default_codec_);
-
-  cricket::VideoSendParameters parameters;
-  parameters.codecs = engine_.codecs();
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_TRUE(channel_->SetSend(true));
-
-  // Send side.
-  FakeVideoSendStream* send_stream =
-      AddSendStream(cricket::StreamParams::CreateLegacy(1));
-  EXPECT_GT(send_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
-
-  // Receiver side.
-  FakeVideoReceiveStream* recv_stream =
-      AddRecvStream(cricket::StreamParams::CreateLegacy(1));
-  EXPECT_GT(recv_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
-
-  // Nack history size should match between sender and receiver.
-  EXPECT_EQ(send_stream->GetConfig().rtp.nack.rtp_history_ms,
-            recv_stream->GetConfig().rtp.nack.rtp_history_ms);
-}
-
-TEST_F(WebRtcVideoChannel2Test, NackCanBeEnabledAndDisabled) {
-  FakeVideoSendStream* send_stream = AddSendStream();
-  FakeVideoReceiveStream* recv_stream = AddRecvStream();
-
-  EXPECT_GT(recv_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
-  EXPECT_GT(send_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
-
-  // Verify that NACK is turned off when send(!) codecs without NACK are set.
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  EXPECT_TRUE(parameters.codecs[0].feedback_params.params().empty());
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  recv_stream = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_EQ(0, recv_stream->GetConfig().rtp.nack.rtp_history_ms);
-  send_stream = fake_call_->GetVideoSendStreams()[0];
-  EXPECT_EQ(0, send_stream->GetConfig().rtp.nack.rtp_history_ms);
-
-  // Verify that NACK is turned on when setting default codecs since the
-  // default codecs have NACK enabled.
-  parameters.codecs = engine_.codecs();
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  recv_stream = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_GT(recv_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
-  send_stream = fake_call_->GetVideoSendStreams()[0];
-  EXPECT_GT(send_stream->GetConfig().rtp.nack.rtp_history_ms, 0);
-}
-
-TEST_F(WebRtcVideoChannel2Test, UsesCorrectSettingsForScreencast) {
-  static const int kScreenshareMinBitrateKbps = 800;
-  cricket::VideoCodec codec = kVp8Codec360p;
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(codec);
-  parameters.options.screencast_min_bitrate_kbps =
-      rtc::Optional<int>(kScreenshareMinBitrateKbps);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-
-  AddSendStream();
-
-  cricket::FakeVideoCapturer capturer;
-  capturer.SetScreencast(false);
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  cricket::VideoFormat capture_format_hd =
-      capturer.GetSupportedFormats()->front();
-  EXPECT_EQ(1280, capture_format_hd.width);
-  EXPECT_EQ(720, capture_format_hd.height);
-  EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format_hd));
-
-  EXPECT_TRUE(channel_->SetSend(true));
-
-  EXPECT_TRUE(capturer.CaptureFrame());
-  ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
-  FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
-
-  EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
-
-  // Verify non-screencast settings.
-  webrtc::VideoEncoderConfig encoder_config = send_stream->GetEncoderConfig();
-  EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kRealtimeVideo,
-            encoder_config.content_type);
-  EXPECT_EQ(codec.width, encoder_config.streams.front().width);
-  EXPECT_EQ(codec.height, encoder_config.streams.front().height);
-  EXPECT_EQ(0, encoder_config.min_transmit_bitrate_bps)
-      << "Non-screenshare shouldn't use min-transmit bitrate.";
-
-  capturer.SetScreencast(true);
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  EXPECT_EQ(2, send_stream->GetNumberOfSwappedFrames());
-
-  // Verify screencast settings.
-  encoder_config = send_stream->GetEncoderConfig();
-  EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
-            encoder_config.content_type);
-  EXPECT_EQ(kScreenshareMinBitrateKbps * 1000,
-            encoder_config.min_transmit_bitrate_bps);
-
-  EXPECT_EQ(capture_format_hd.width, encoder_config.streams.front().width);
-  EXPECT_EQ(capture_format_hd.height, encoder_config.streams.front().height);
-  EXPECT_TRUE(encoder_config.streams[0].temporal_layer_thresholds_bps.empty());
-
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       ConferenceModeScreencastConfiguresTemporalLayer) {
-  static const int kConferenceScreencastTemporalBitrateBps =
-      ScreenshareLayerConfig::GetDefault().tl0_bitrate_kbps * 1000;
-  send_parameters_.options.conference_mode = rtc::Optional<bool>(true);
-  channel_->SetSendParameters(send_parameters_);
-
-  AddSendStream();
-
-  cricket::FakeVideoCapturer capturer;
-  capturer.SetScreencast(true);
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  cricket::VideoFormat capture_format_hd =
-      capturer.GetSupportedFormats()->front();
-  EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(capture_format_hd));
-
-  EXPECT_TRUE(channel_->SetSend(true));
-
-  EXPECT_TRUE(capturer.CaptureFrame());
-  ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
-  FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
-
-  webrtc::VideoEncoderConfig encoder_config = send_stream->GetEncoderConfig();
-
-  // Verify screencast settings.
-  encoder_config = send_stream->GetEncoderConfig();
-  EXPECT_EQ(webrtc::VideoEncoderConfig::ContentType::kScreen,
-            encoder_config.content_type);
-  ASSERT_EQ(1u, encoder_config.streams.size());
-  ASSERT_EQ(1u, encoder_config.streams[0].temporal_layer_thresholds_bps.size());
-  EXPECT_EQ(kConferenceScreencastTemporalBitrateBps,
-            encoder_config.streams[0].temporal_layer_thresholds_bps[0]);
-
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
-}
-
-TEST_F(WebRtcVideoChannel2Test, SuspendBelowMinBitrateDisabledByDefault) {
-  FakeVideoSendStream* stream = AddSendStream();
-  EXPECT_FALSE(stream->GetConfig().suspend_below_min_bitrate);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetOptionsWithSuspendBelowMinBitrate) {
-  send_parameters_.options.suspend_below_min_bitrate =
-      rtc::Optional<bool>(true);
-  channel_->SetSendParameters(send_parameters_);
-
-  FakeVideoSendStream* stream = AddSendStream();
-  EXPECT_TRUE(stream->GetConfig().suspend_below_min_bitrate);
-
-  send_parameters_.options.suspend_below_min_bitrate =
-      rtc::Optional<bool>(false);
-  channel_->SetSendParameters(send_parameters_);
-
-  stream = fake_call_->GetVideoSendStreams()[0];
-  EXPECT_FALSE(stream->GetConfig().suspend_below_min_bitrate);
-}
-
-TEST_F(WebRtcVideoChannel2Test, Vp8DenoisingEnabledByDefault) {
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoCodecVP8 vp8_settings;
-  ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
-  EXPECT_TRUE(vp8_settings.denoisingOn);
-}
-
-TEST_F(WebRtcVideoChannel2Test, VerifyVp8SpecificSettings) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec720p);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-
-  // Single-stream settings should apply with RTX as well (verifies that we
-  // check number of regular SSRCs and not StreamParams::ssrcs which contains
-  // both RTX and regular SSRCs).
-  FakeVideoSendStream* stream = SetUpSimulcast(false, true);
-
-  cricket::FakeVideoCapturer capturer;
-  capturer.SetScreencast(false);
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  channel_->SetSend(true);
-
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  webrtc::VideoCodecVP8 vp8_settings;
-  ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
-  EXPECT_TRUE(vp8_settings.denoisingOn)
-      << "VP8 denoising should be on by default.";
-
-  stream = SetDenoisingOption(parameters, false);
-
-  ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
-  EXPECT_FALSE(vp8_settings.denoisingOn);
-  EXPECT_TRUE(vp8_settings.automaticResizeOn);
-  EXPECT_TRUE(vp8_settings.frameDroppingOn);
-
-  stream = SetDenoisingOption(parameters, true);
-
-  ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
-  EXPECT_TRUE(vp8_settings.denoisingOn);
-  EXPECT_TRUE(vp8_settings.automaticResizeOn);
-  EXPECT_TRUE(vp8_settings.frameDroppingOn);
-
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
-  stream = SetUpSimulcast(true, false);
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  channel_->SetSend(true);
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  EXPECT_EQ(3, stream->GetVideoStreams().size());
-  ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
-  // Autmatic resize off when using simulcast.
-  EXPECT_FALSE(vp8_settings.automaticResizeOn);
-  EXPECT_TRUE(vp8_settings.frameDroppingOn);
-
-  // In screen-share mode, denoising is forced off and simulcast disabled.
-  capturer.SetScreencast(true);
-  EXPECT_TRUE(capturer.CaptureFrame());
-  stream = SetDenoisingOption(parameters, false);
-
-  EXPECT_EQ(1, stream->GetVideoStreams().size());
-  ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
-  EXPECT_FALSE(vp8_settings.denoisingOn);
-  // Resizing and frame dropping always off for screen sharing.
-  EXPECT_FALSE(vp8_settings.automaticResizeOn);
-  EXPECT_FALSE(vp8_settings.frameDroppingOn);
-
-  stream = SetDenoisingOption(parameters, true);
-
-  ASSERT_TRUE(stream->GetVp8Settings(&vp8_settings)) << "No VP8 config set.";
-  EXPECT_FALSE(vp8_settings.denoisingOn);
-  EXPECT_FALSE(vp8_settings.automaticResizeOn);
-  EXPECT_FALSE(vp8_settings.frameDroppingOn);
-
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
-}
-
-class Vp9SettingsTest : public WebRtcVideoChannel2Test {
- public:
-  Vp9SettingsTest() : WebRtcVideoChannel2Test() {
-    encoder_factory_.AddSupportedVideoCodecType(webrtc::kVideoCodecVP9, "VP9");
-  }
-  virtual ~Vp9SettingsTest() {}
-
- protected:
-  void SetUp() override {
-    engine_.SetExternalEncoderFactory(&encoder_factory_);
-
-    WebRtcVideoChannel2Test::SetUp();
-  }
-
-  void TearDown() override {
-    // Remove references to encoder_factory_ since this will be destroyed
-    // before channel_ and engine_.
-    ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
-  }
-
-  cricket::FakeWebRtcVideoEncoderFactory encoder_factory_;
-};
-
-TEST_F(Vp9SettingsTest, VerifyVp9SpecificSettings) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp9Codec);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-
-  FakeVideoSendStream* stream = SetUpSimulcast(false, false);
-
-  cricket::FakeVideoCapturer capturer;
-  capturer.SetScreencast(false);
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  channel_->SetSend(true);
-
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  webrtc::VideoCodecVP9 vp9_settings;
-  ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
-  EXPECT_FALSE(vp9_settings.denoisingOn)
-      << "VP9 denoising should be off by default.";
-
-  stream = SetDenoisingOption(parameters, false);
-
-  ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
-  EXPECT_FALSE(vp9_settings.denoisingOn);
-  // Frame dropping always on for real time video.
-  EXPECT_TRUE(vp9_settings.frameDroppingOn);
-
-  stream = SetDenoisingOption(parameters, true);
-
-  ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
-  EXPECT_TRUE(vp9_settings.denoisingOn);
-  EXPECT_TRUE(vp9_settings.frameDroppingOn);
-
-  // In screen-share mode, denoising is forced off.
-  capturer.SetScreencast(true);
-  EXPECT_TRUE(capturer.CaptureFrame());
-  stream = SetDenoisingOption(parameters, false);
-
-  ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
-  EXPECT_FALSE(vp9_settings.denoisingOn);
-  // Frame dropping always off for screen sharing.
-  EXPECT_FALSE(vp9_settings.frameDroppingOn);
-
-  stream = SetDenoisingOption(parameters, false);
-
-  ASSERT_TRUE(stream->GetVp9Settings(&vp9_settings)) << "No VP9 config set.";
-  EXPECT_FALSE(vp9_settings.denoisingOn);
-  EXPECT_FALSE(vp9_settings.frameDroppingOn);
-
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
-}
-
-TEST_F(WebRtcVideoChannel2Test, AdaptsOnOveruse) {
-  TestCpuAdaptation(true, false);
-}
-
-TEST_F(WebRtcVideoChannel2Test, DoesNotAdaptOnOveruseWhenDisabled) {
-  TestCpuAdaptation(false, false);
-}
-
-TEST_F(WebRtcVideoChannel2Test, DoesNotAdaptOnOveruseWhenScreensharing) {
-  TestCpuAdaptation(true, true);
-}
-
-void WebRtcVideoChannel2Test::TestCpuAdaptation(bool enable_overuse,
-                                                bool is_screenshare) {
-  cricket::VideoCodec codec = kVp8Codec720p;
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(codec);
-  if (!enable_overuse) {
-    parameters.options.cpu_overuse_detection = rtc::Optional<bool>(false);
-  }
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-
-  AddSendStream();
-
-  cricket::FakeVideoCapturer capturer;
-  capturer.SetScreencast(is_screenshare);
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-
-  EXPECT_TRUE(channel_->SetSend(true));
-
-  // Trigger overuse.
-  ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
-  FakeVideoSendStream* send_stream = fake_call_->GetVideoSendStreams().front();
-  webrtc::LoadObserver* overuse_callback =
-      send_stream->GetConfig().overuse_callback;
-  ASSERT_TRUE(overuse_callback != NULL);
-  overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
-
-  EXPECT_TRUE(capturer.CaptureFrame());
-  EXPECT_EQ(1, send_stream->GetNumberOfSwappedFrames());
-
-  if (enable_overuse && !is_screenshare) {
-    EXPECT_LT(send_stream->GetLastWidth(), codec.width);
-    EXPECT_LT(send_stream->GetLastHeight(), codec.height);
-  } else {
-    EXPECT_EQ(codec.width, send_stream->GetLastWidth());
-    EXPECT_EQ(codec.height, send_stream->GetLastHeight());
-  }
-
-  // Trigger underuse which should go back to normal resolution.
-  overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  EXPECT_EQ(2, send_stream->GetNumberOfSwappedFrames());
-
-  EXPECT_EQ(codec.width, send_stream->GetLastWidth());
-  EXPECT_EQ(codec.height, send_stream->GetLastHeight());
-
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
-}
-
-TEST_F(WebRtcVideoChannel2Test, EstimatesNtpStartTimeCorrectly) {
-  // Start at last timestamp to verify that wraparounds are estimated correctly.
-  static const uint32_t kInitialTimestamp = 0xFFFFFFFFu;
-  static const int64_t kInitialNtpTimeMs = 1247891230;
-  static const int kFrameOffsetMs = 20;
-  EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  cricket::FakeVideoRenderer renderer;
-  EXPECT_TRUE(channel_->SetSink(last_ssrc_, &renderer));
-
-  webrtc::VideoFrame video_frame;
-  CreateBlackFrame(&video_frame, 4, 4);
-  video_frame.set_timestamp(kInitialTimestamp);
-  // Initial NTP time is not available on the first frame, but should still be
-  // able to be estimated.
-  stream->InjectFrame(video_frame, 0);
-
-  EXPECT_EQ(1, renderer.num_rendered_frames());
-
-  // This timestamp is kInitialTimestamp (-1) + kFrameOffsetMs * 90, which
-  // triggers a constant-overflow warning, hence we're calculating it explicitly
-  // here.
-  video_frame.set_timestamp(kFrameOffsetMs * 90 - 1);
-  video_frame.set_ntp_time_ms(kInitialNtpTimeMs + kFrameOffsetMs);
-  stream->InjectFrame(video_frame, 0);
-
-  EXPECT_EQ(2, renderer.num_rendered_frames());
-
-  // Verify that NTP time has been correctly deduced.
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1u, info.receivers.size());
-  EXPECT_EQ(kInitialNtpTimeMs, info.receivers[0].capture_start_ntp_time_ms);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetDefaultSendCodecs) {
-  ASSERT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  VideoCodec codec;
-  EXPECT_TRUE(channel_->GetSendCodec(&codec));
-  EXPECT_TRUE(codec.Matches(engine_.codecs()[0]));
-
-  // Using a RTX setup to verify that the default RTX payload type is good.
-  const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
-  const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
-  FakeVideoSendStream* stream = AddSendStream(
-      cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs));
-  webrtc::VideoSendStream::Config config = stream->GetConfig();
-
-  // Make sure NACK and FEC are enabled on the correct payload types.
-  EXPECT_EQ(1000, config.rtp.nack.rtp_history_ms);
-  EXPECT_EQ(default_ulpfec_codec_.id, config.rtp.fec.ulpfec_payload_type);
-  EXPECT_EQ(default_red_codec_.id, config.rtp.fec.red_payload_type);
-
-  EXPECT_EQ(1u, config.rtp.rtx.ssrcs.size());
-  EXPECT_EQ(kRtxSsrcs1[0], config.rtp.rtx.ssrcs[0]);
-  VerifySendStreamHasRtxTypes(config, default_apt_rtx_types_);
-  // TODO(juberti): Check RTCP, PLI, TMMBR.
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithoutFec) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Config config = stream->GetConfig();
-
-  EXPECT_EQ(-1, config.rtp.fec.ulpfec_payload_type);
-  EXPECT_EQ(-1, config.rtp.fec.red_payload_type);
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetSendCodecRejectsRtxWithoutAssociatedPayloadType) {
-  cricket::VideoSendParameters parameters;
-  cricket::VideoCodec rtx_codec(96, "rtx", 0, 0, 0, 0);
-  parameters.codecs.push_back(rtx_codec);
-  EXPECT_FALSE(channel_->SetSendParameters(parameters))
-      << "RTX codec without associated payload type should be rejected.";
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetSendCodecRejectsRtxWithoutMatchingVideoCodec) {
-  cricket::VideoSendParameters parameters;
-  cricket::VideoCodec rtx_codec =
-      cricket::VideoCodec::CreateRtxCodec(96, kVp8Codec.id);
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(rtx_codec);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-
-  cricket::VideoCodec rtx_codec2 =
-      cricket::VideoCodec::CreateRtxCodec(96, kVp8Codec.id + 1);
-  parameters.codecs.pop_back();
-  parameters.codecs.push_back(rtx_codec2);
-  EXPECT_FALSE(channel_->SetSendParameters(parameters))
-      << "RTX without matching video codec should be rejected.";
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithoutFecDisablesFec) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(kUlpfecCodec);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Config config = stream->GetConfig();
-
-  EXPECT_EQ(kUlpfecCodec.id, config.rtp.fec.ulpfec_payload_type);
-
-  parameters.codecs.pop_back();
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-  stream = fake_call_->GetVideoSendStreams()[0];
-  ASSERT_TRUE(stream != NULL);
-  config = stream->GetConfig();
-  EXPECT_EQ(-1, config.rtp.fec.ulpfec_payload_type)
-      << "SetSendCodec without FEC should disable current FEC.";
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsChangesExistingStreams) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec720p);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-  channel_->SetSend(true);
-
-  FakeVideoSendStream* stream = AddSendStream();
-
-  cricket::FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
-  EXPECT_EQ(kVp8Codec720p.width, streams[0].width);
-  EXPECT_EQ(kVp8Codec720p.height, streams[0].height);
-
-  parameters.codecs.clear();
-  parameters.codecs.push_back(kVp8Codec360p);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-  streams = fake_call_->GetVideoSendStreams()[0]->GetVideoStreams();
-  EXPECT_EQ(kVp8Codec360p.width, streams[0].width);
-  EXPECT_EQ(kVp8Codec360p.height, streams[0].height);
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, NULL));
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithBitrates) {
-  SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200",
-                                     200000);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithHighMaxBitrate) {
-  SetSendCodecsShouldWorkForBitrates("", 0, "", -1, "10000", 10000000);
-  std::vector<webrtc::VideoStream> streams = AddSendStream()->GetVideoStreams();
-  ASSERT_EQ(1u, streams.size());
-  EXPECT_EQ(10000000, streams[0].max_bitrate_bps);
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetSendCodecsWithoutBitratesUsesCorrectDefaults) {
-  SetSendCodecsShouldWorkForBitrates(
-      "", 0, "", -1, "", -1);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsCapsMinAndStartBitrate) {
-  SetSendCodecsShouldWorkForBitrates("-1", 0, "-100", -1, "", -1);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectsMaxLessThanMinBitrate) {
-  send_parameters_.codecs[0].params[kCodecParamMinBitrate] = "300";
-  send_parameters_.codecs[0].params[kCodecParamMaxBitrate] = "200";
-  EXPECT_FALSE(channel_->SetSendParameters(send_parameters_));
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetMaxSendBandwidthShouldPreserveOtherBitrates) {
-  SetSendCodecsShouldWorkForBitrates("100", 100000, "150", 150000, "200",
-                                     200000);
-  send_parameters_.max_bandwidth_bps = 300000;
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-  EXPECT_EQ(100000, fake_call_->GetConfig().bitrate_config.min_bitrate_bps)
-      << "Setting max bitrate should keep previous min bitrate.";
-  EXPECT_EQ(-1, fake_call_->GetConfig().bitrate_config.start_bitrate_bps)
-      << "Setting max bitrate should not reset start bitrate.";
-  EXPECT_EQ(300000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetMaxSendBandwidthShouldBeRemovable) {
-  send_parameters_.max_bandwidth_bps = 300000;
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-  EXPECT_EQ(300000, fake_call_->GetConfig().bitrate_config.max_bitrate_bps);
-  // <= 0 means disable (infinite) max bitrate.
-  send_parameters_.max_bandwidth_bps = 0;
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-  EXPECT_EQ(-1, fake_call_->GetConfig().bitrate_config.max_bitrate_bps)
-      << "Setting zero max bitrate did not reset start bitrate.";
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetMaxSendBitrateCanIncreaseSenderBitrate) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec720p);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-  channel_->SetSend(true);
-
-  FakeVideoSendStream* stream = AddSendStream();
-
-  cricket::FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-
-  std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
-  int initial_max_bitrate_bps = streams[0].max_bitrate_bps;
-  EXPECT_GT(initial_max_bitrate_bps, 0);
-
-  parameters.max_bandwidth_bps = initial_max_bitrate_bps * 2;
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  // Insert a frame to update the encoder config.
-  EXPECT_TRUE(capturer.CaptureFrame());
-  streams = stream->GetVideoStreams();
-  EXPECT_EQ(initial_max_bitrate_bps * 2, streams[0].max_bitrate_bps);
-  EXPECT_TRUE(channel_->SetCapturer(last_ssrc_, nullptr));
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetMaxSendBitrateCanIncreaseSimulcastSenderBitrate) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec720p);
-  ASSERT_TRUE(channel_->SetSendParameters(parameters));
-  channel_->SetSend(true);
-
-  FakeVideoSendStream* stream = AddSendStream(
-      cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3)));
-
-  // Send a frame to make sure this scales up to >1 stream (simulcast).
-  cricket::FakeVideoCapturer capturer;
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], &capturer));
-  EXPECT_EQ(cricket::CS_RUNNING,
-            capturer.Start(capturer.GetSupportedFormats()->front()));
-  EXPECT_TRUE(capturer.CaptureFrame());
-
-  std::vector<webrtc::VideoStream> streams = stream->GetVideoStreams();
-  ASSERT_GT(streams.size(), 1u)
-      << "Without simulcast this test doesn't make sense.";
-  int initial_max_bitrate_bps = GetTotalMaxBitrateBps(streams);
-  EXPECT_GT(initial_max_bitrate_bps, 0);
-
-  parameters.max_bandwidth_bps = initial_max_bitrate_bps * 2;
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  // Insert a frame to update the encoder config.
-  EXPECT_TRUE(capturer.CaptureFrame());
-  streams = stream->GetVideoStreams();
-  int increased_max_bitrate_bps = GetTotalMaxBitrateBps(streams);
-  EXPECT_EQ(initial_max_bitrate_bps * 2, increased_max_bitrate_bps);
-
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], nullptr));
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsWithMaxQuantization) {
-  static const char* kMaxQuantization = "21";
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs[0].params[kCodecParamMaxQuantization] = kMaxQuantization;
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_EQ(static_cast<unsigned int>(atoi(kMaxQuantization)),
-            AddSendStream()->GetVideoStreams().back().max_qp);
-
-  VideoCodec codec;
-  EXPECT_TRUE(channel_->GetSendCodec(&codec));
-  EXPECT_EQ(kMaxQuantization, codec.params[kCodecParamMaxQuantization]);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectBadDimensions) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-
-  parameters.codecs[0].width = 0;
-  EXPECT_FALSE(channel_->SetSendParameters(parameters))
-      << "Codec set though codec width is zero.";
-
-  parameters.codecs[0].width = kVp8Codec.width;
-  parameters.codecs[0].height = 0;
-  EXPECT_FALSE(channel_->SetSendParameters(parameters))
-      << "Codec set though codec height is zero.";
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectBadPayloadTypes) {
-  // TODO(pbos): Should we only allow the dynamic range?
-  static const int kIncorrectPayloads[] = {-2, -1, 128, 129};
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  for (size_t i = 0; i < arraysize(kIncorrectPayloads); ++i) {
-    parameters.codecs[0].id = kIncorrectPayloads[i];
-    EXPECT_FALSE(channel_->SetSendParameters(parameters))
-        << "Bad payload type '" << kIncorrectPayloads[i] << "' accepted.";
-  }
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsAcceptAllValidPayloadTypes) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  for (int payload_type = 0; payload_type <= 127; ++payload_type) {
-    parameters.codecs[0].id = payload_type;
-    EXPECT_TRUE(channel_->SetSendParameters(parameters))
-        << "Payload type '" << payload_type << "' rejected.";
-  }
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsWithOnlyVp8) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-}
-
-// Test that we set our inbound RTX codecs properly.
-TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsWithRtx) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  cricket::VideoCodec rtx_codec(96, "rtx", 0, 0, 0, 0);
-  parameters.codecs.push_back(rtx_codec);
-  EXPECT_FALSE(channel_->SetRecvParameters(parameters))
-      << "RTX codec without associated payload should be rejected.";
-
-  parameters.codecs[1].SetParam("apt", kVp8Codec.id + 1);
-  EXPECT_FALSE(channel_->SetRecvParameters(parameters))
-      << "RTX codec with invalid associated payload type should be rejected.";
-
-  parameters.codecs[1].SetParam("apt", kVp8Codec.id);
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-
-  cricket::VideoCodec rtx_codec2(97, "rtx", 0, 0, 0, 0);
-  rtx_codec2.SetParam("apt", rtx_codec.id);
-  parameters.codecs.push_back(rtx_codec2);
-
-  EXPECT_FALSE(channel_->SetRecvParameters(parameters)) <<
-      "RTX codec with another RTX as associated payload type should be "
-      "rejected.";
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsDifferentPayloadType) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs[0].id = 99;
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsAcceptDefaultCodecs) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs = engine_.codecs();
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  webrtc::VideoReceiveStream::Config config = stream->GetConfig();
-  EXPECT_EQ(engine_.codecs()[0].name, config.decoders[0].payload_name);
-  EXPECT_EQ(engine_.codecs()[0].id, config.decoders[0].payload_type);
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsRejectUnsupportedCodec) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(VideoCodec(101, "WTF3", 640, 400, 30, 0));
-  EXPECT_FALSE(channel_->SetRecvParameters(parameters));
-}
-
-// TODO(pbos): Enable VP9 through external codec support
-TEST_F(WebRtcVideoChannel2Test,
-       DISABLED_SetRecvCodecsAcceptsMultipleVideoCodecs) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(kVp9Codec);
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       DISABLED_SetRecvCodecsSetsFecForAllVideoCodecs) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(kVp9Codec);
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-  FAIL();  // TODO(pbos): Verify that the FEC parameters are set for all codecs.
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsWithoutFecDisablesFec) {
-  cricket::VideoSendParameters send_parameters;
-  send_parameters.codecs.push_back(kVp8Codec);
-  send_parameters.codecs.push_back(kUlpfecCodec);
-  ASSERT_TRUE(channel_->SetSendParameters(send_parameters));
-
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  webrtc::VideoReceiveStream::Config config = stream->GetConfig();
-
-  EXPECT_EQ(kUlpfecCodec.id, config.rtp.fec.ulpfec_payload_type);
-
-  cricket::VideoRecvParameters recv_parameters;
-  recv_parameters.codecs.push_back(kVp8Codec);
-  ASSERT_TRUE(channel_->SetRecvParameters(recv_parameters));
-  stream = fake_call_->GetVideoReceiveStreams()[0];
-  ASSERT_TRUE(stream != NULL);
-  config = stream->GetConfig();
-  EXPECT_EQ(-1, config.rtp.fec.ulpfec_payload_type)
-      << "SetSendCodec without FEC should disable current FEC.";
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSendCodecsRejectDuplicateFecPayloads) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(kRedCodec);
-  parameters.codecs[1].id = parameters.codecs[0].id;
-  EXPECT_FALSE(channel_->SetRecvParameters(parameters));
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetRecvCodecsRejectDuplicateCodecPayloads) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(kVp9Codec);
-  parameters.codecs[1].id = parameters.codecs[0].id;
-  EXPECT_FALSE(channel_->SetRecvParameters(parameters));
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       SetRecvCodecsAcceptSameCodecOnMultiplePayloadTypes) {
-  cricket::VideoRecvParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs.push_back(kVp8Codec);
-  parameters.codecs[1].id += 1;
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters));
-}
-
-// Test that setting the same codecs but with a different order and preference
-// doesn't result in the stream being recreated.
-TEST_F(WebRtcVideoChannel2Test,
-       SetRecvCodecsDifferentOrderAndPreferenceDoesntRecreateStream) {
-  cricket::VideoRecvParameters parameters1;
-  parameters1.codecs.push_back(kVp8Codec);
-  parameters1.codecs.push_back(kRedCodec);
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters1));
-
-  AddRecvStream(cricket::StreamParams::CreateLegacy(123));
-  EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
-
-  cricket::VideoRecvParameters parameters2;
-  parameters2.codecs.push_back(kRedCodec);
-  parameters2.codecs.push_back(kVp8Codec);
-  parameters2.codecs[1].preference += 1;
-  EXPECT_TRUE(channel_->SetRecvParameters(parameters2));
-  EXPECT_EQ(1, fake_call_->GetNumCreatedReceiveStreams());
-}
-
-TEST_F(WebRtcVideoChannel2Test, SendStreamNotSendingByDefault) {
-  EXPECT_FALSE(AddSendStream()->IsSending());
-}
-
-TEST_F(WebRtcVideoChannel2Test, ReceiveStreamReceivingByDefault) {
-  EXPECT_TRUE(AddRecvStream()->IsReceiving());
-}
-
-TEST_F(WebRtcVideoChannel2Test, SetSend) {
-  FakeVideoSendStream* stream = AddSendStream();
-  EXPECT_FALSE(stream->IsSending());
-
-  // false->true
-  EXPECT_TRUE(channel_->SetSend(true));
-  EXPECT_TRUE(stream->IsSending());
-  // true->true
-  EXPECT_TRUE(channel_->SetSend(true));
-  EXPECT_TRUE(stream->IsSending());
-  // true->false
-  EXPECT_TRUE(channel_->SetSend(false));
-  EXPECT_FALSE(stream->IsSending());
-  // false->false
-  EXPECT_TRUE(channel_->SetSend(false));
-  EXPECT_FALSE(stream->IsSending());
-
-  EXPECT_TRUE(channel_->SetSend(true));
-  FakeVideoSendStream* new_stream = AddSendStream();
-  EXPECT_TRUE(new_stream->IsSending())
-      << "Send stream created after SetSend(true) not sending initially.";
-}
-
-// This test verifies DSCP settings are properly applied on video media channel.
-TEST_F(WebRtcVideoChannel2Test, TestSetDscpOptions) {
-  rtc::scoped_ptr<cricket::FakeNetworkInterface> network_interface(
-      new cricket::FakeNetworkInterface);
-  channel_->SetInterface(network_interface.get());
-  cricket::VideoSendParameters parameters = send_parameters_;
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_EQ(rtc::DSCP_NO_CHANGE, network_interface->dscp());
-  parameters.options.dscp = rtc::Optional<bool>(true);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_EQ(rtc::DSCP_AF41, network_interface->dscp());
-  // Verify previous value is not modified if dscp option is not set.
-  cricket::VideoSendParameters parameters1 = send_parameters_;
-  EXPECT_TRUE(channel_->SetSendParameters(parameters1));
-  EXPECT_EQ(rtc::DSCP_AF41, network_interface->dscp());
-  parameters1.options.dscp = rtc::Optional<bool>(false);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters1));
-  EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface->dscp());
-  channel_->SetInterface(NULL);
-}
-
-// This test verifies that the RTCP reduced size mode is properly applied to
-// send video streams.
-TEST_F(WebRtcVideoChannel2Test, TestSetSendRtcpReducedSize) {
-  // Create stream, expecting that default mode is "compound".
-  FakeVideoSendStream* stream1 = AddSendStream();
-  EXPECT_EQ(webrtc::RtcpMode::kCompound, stream1->GetConfig().rtp.rtcp_mode);
-
-  // Now enable reduced size mode.
-  send_parameters_.rtcp.reduced_size = true;
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-  stream1 = fake_call_->GetVideoSendStreams()[0];
-  EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream1->GetConfig().rtp.rtcp_mode);
-
-  // Create a new stream and ensure it picks up the reduced size mode.
-  FakeVideoSendStream* stream2 = AddSendStream();
-  EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream2->GetConfig().rtp.rtcp_mode);
-}
-
-// This test verifies that the RTCP reduced size mode is properly applied to
-// receive video streams.
-TEST_F(WebRtcVideoChannel2Test, TestSetRecvRtcpReducedSize) {
-  // Create stream, expecting that default mode is "compound".
-  FakeVideoReceiveStream* stream1 = AddRecvStream();
-  EXPECT_EQ(webrtc::RtcpMode::kCompound, stream1->GetConfig().rtp.rtcp_mode);
-
-  // Now enable reduced size mode.
-  recv_parameters_.rtcp.reduced_size = true;
-  EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-  stream1 = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream1->GetConfig().rtp.rtcp_mode);
-
-  // Create a new stream and ensure it picks up the reduced size mode.
-  FakeVideoReceiveStream* stream2 = AddRecvStream();
-  EXPECT_EQ(webrtc::RtcpMode::kReducedSize, stream2->GetConfig().rtp.rtcp_mode);
-}
-
-TEST_F(WebRtcVideoChannel2Test, OnReadyToSendSignalsNetworkState) {
-  EXPECT_EQ(webrtc::kNetworkUp, fake_call_->GetNetworkState());
-
-  channel_->OnReadyToSend(false);
-  EXPECT_EQ(webrtc::kNetworkDown, fake_call_->GetNetworkState());
-
-  channel_->OnReadyToSend(true);
-  EXPECT_EQ(webrtc::kNetworkUp, fake_call_->GetNetworkState());
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsReportsSentCodecName) {
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(kVp8Codec);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-
-  AddSendStream();
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_EQ(kVp8Codec.name, info.senders[0].codec_name);
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsReportsEncoderImplementationName) {
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Stats stats;
-  stats.encoder_implementation_name = "encoder_implementation_name";
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_EQ(stats.encoder_implementation_name,
-            info.senders[0].encoder_implementation_name);
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsReportsCpuOveruseMetrics) {
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Stats stats;
-  stats.avg_encode_time_ms = 13;
-  stats.encode_usage_percent = 42;
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_EQ(stats.avg_encode_time_ms, info.senders[0].avg_encode_ms);
-  EXPECT_EQ(stats.encode_usage_percent, info.senders[0].encode_usage_percent);
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsReportsUpperResolution) {
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Stats stats;
-  stats.substreams[17].width = 123;
-  stats.substreams[17].height = 40;
-  stats.substreams[42].width = 80;
-  stats.substreams[42].height = 31;
-  stats.substreams[11].width = 20;
-  stats.substreams[11].height = 90;
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1u, info.senders.size());
-  EXPECT_EQ(123, info.senders[0].send_frame_width);
-  EXPECT_EQ(90, info.senders[0].send_frame_height);
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsTracksAdaptationStats) {
-  AddSendStream(cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3)));
-
-  // Capture format VGA.
-  cricket::FakeVideoCapturer video_capturer_vga;
-  const std::vector<cricket::VideoFormat>* formats =
-      video_capturer_vga.GetSupportedFormats();
-  cricket::VideoFormat capture_format_vga = (*formats)[1];
-  EXPECT_EQ(cricket::CS_RUNNING, video_capturer_vga.Start(capture_format_vga));
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], &video_capturer_vga));
-  EXPECT_TRUE(video_capturer_vga.CaptureFrame());
-
-  cricket::VideoCodec send_codec(100, "VP8", 640, 480, 30, 0);
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(send_codec);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_TRUE(channel_->SetSend(true));
-
-  // Verify that the CpuOveruseObserver is registered and trigger downgrade.
-  parameters.options.cpu_overuse_detection = rtc::Optional<bool>(true);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-
-  // Trigger overuse.
-  ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
-  webrtc::LoadObserver* overuse_callback =
-      fake_call_->GetVideoSendStreams().front()->GetConfig().overuse_callback;
-  ASSERT_TRUE(overuse_callback != NULL);
-  overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
-
-  // Capture format VGA -> adapt (OnCpuResolutionRequest downgrade) -> VGA/2.
-  EXPECT_TRUE(video_capturer_vga.CaptureFrame());
-  cricket::VideoMediaInfo info;
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(1, info.senders[0].adapt_changes);
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU,
-            info.senders[0].adapt_reason);
-
-  // Trigger upgrade and verify that we adapt back up to VGA.
-  overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
-  EXPECT_TRUE(video_capturer_vga.CaptureFrame());
-  info.Clear();
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(2, info.senders[0].adapt_changes);
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_NONE,
-            info.senders[0].adapt_reason);
-
-  // No capturer (no adapter). Adapt changes from old adapter should be kept.
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], NULL));
-  info.Clear();
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(2, info.senders[0].adapt_changes);
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_NONE,
-            info.senders[0].adapt_reason);
-
-  // Set new capturer, capture format HD.
-  cricket::FakeVideoCapturer video_capturer_hd;
-  cricket::VideoFormat capture_format_hd = (*formats)[0];
-  EXPECT_EQ(cricket::CS_RUNNING, video_capturer_hd.Start(capture_format_hd));
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], &video_capturer_hd));
-  EXPECT_TRUE(video_capturer_hd.CaptureFrame());
-
-  // Trigger overuse, HD -> adapt (OnCpuResolutionRequest downgrade) -> HD/2.
-  overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
-  EXPECT_TRUE(video_capturer_hd.CaptureFrame());
-  info.Clear();
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(3, info.senders[0].adapt_changes);
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU,
-            info.senders[0].adapt_reason);
-
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], NULL));
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsTracksAdaptationAndBandwidthStats) {
-  AddSendStream(cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kSsrcs3)));
-
-  // Capture format VGA.
-  cricket::FakeVideoCapturer video_capturer_vga;
-  const std::vector<cricket::VideoFormat>* formats =
-      video_capturer_vga.GetSupportedFormats();
-  cricket::VideoFormat capture_format_vga = (*formats)[1];
-  EXPECT_EQ(cricket::CS_RUNNING, video_capturer_vga.Start(capture_format_vga));
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], &video_capturer_vga));
-  EXPECT_TRUE(video_capturer_vga.CaptureFrame());
-
-  cricket::VideoCodec send_codec(100, "VP8", 640, 480, 30, 0);
-  cricket::VideoSendParameters parameters;
-  parameters.codecs.push_back(send_codec);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_TRUE(channel_->SetSend(true));
-
-  // Verify that the CpuOveruseObserver is registered and trigger downgrade.
-  parameters.options.cpu_overuse_detection = rtc::Optional<bool>(true);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-
-  // Trigger overuse -> adapt CPU.
-  ASSERT_EQ(1u, fake_call_->GetVideoSendStreams().size());
-  webrtc::LoadObserver* overuse_callback =
-      fake_call_->GetVideoSendStreams().front()->GetConfig().overuse_callback;
-  ASSERT_TRUE(overuse_callback != NULL);
-  overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kOveruse);
-  EXPECT_TRUE(video_capturer_vga.CaptureFrame());
-  cricket::VideoMediaInfo info;
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU,
-            info.senders[0].adapt_reason);
-
-  // Set bandwidth limitation stats for the stream -> adapt CPU + BW.
-  webrtc::VideoSendStream::Stats stats;
-  stats.bw_limited_resolution = true;
-  fake_call_->GetVideoSendStreams().front()->SetStats(stats);
-  info.Clear();
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU +
-            CoordinatedVideoAdapter::ADAPTREASON_BANDWIDTH,
-            info.senders[0].adapt_reason);
-
-  // Trigger upgrade -> adapt BW.
-  overuse_callback->OnLoadUpdate(webrtc::LoadObserver::kUnderuse);
-  EXPECT_TRUE(video_capturer_vga.CaptureFrame());
-  info.Clear();
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_BANDWIDTH,
-            info.senders[0].adapt_reason);
-
-  // Reset bandwidth limitation state -> adapt NONE.
-  stats.bw_limited_resolution = false;
-  fake_call_->GetVideoSendStreams().front()->SetStats(stats);
-  info.Clear();
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_NONE,
-            info.senders[0].adapt_reason);
-
-  EXPECT_TRUE(channel_->SetCapturer(kSsrcs3[0], NULL));
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       GetStatsTranslatesBandwidthLimitedResolutionCorrectly) {
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Stats stats;
-  stats.bw_limited_resolution = true;
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  EXPECT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(1U, info.senders.size());
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_BANDWIDTH,
-            info.senders[0].adapt_reason);
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       GetStatsTranslatesSendRtcpPacketTypesCorrectly) {
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Stats stats;
-  stats.substreams[17].rtcp_packet_type_counts.fir_packets = 2;
-  stats.substreams[17].rtcp_packet_type_counts.nack_packets = 3;
-  stats.substreams[17].rtcp_packet_type_counts.pli_packets = 4;
-
-  stats.substreams[42].rtcp_packet_type_counts.fir_packets = 5;
-  stats.substreams[42].rtcp_packet_type_counts.nack_packets = 7;
-  stats.substreams[42].rtcp_packet_type_counts.pli_packets = 9;
-
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_EQ(7, info.senders[0].firs_rcvd);
-  EXPECT_EQ(10, info.senders[0].nacks_rcvd);
-  EXPECT_EQ(13, info.senders[0].plis_rcvd);
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       GetStatsTranslatesReceiveRtcpPacketTypesCorrectly) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  webrtc::VideoReceiveStream::Stats stats;
-  stats.rtcp_packet_type_counts.fir_packets = 2;
-  stats.rtcp_packet_type_counts.nack_packets = 3;
-  stats.rtcp_packet_type_counts.pli_packets = 4;
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_EQ(stats.rtcp_packet_type_counts.fir_packets,
-            info.receivers[0].firs_sent);
-  EXPECT_EQ(stats.rtcp_packet_type_counts.nack_packets,
-            info.receivers[0].nacks_sent);
-  EXPECT_EQ(stats.rtcp_packet_type_counts.pli_packets,
-            info.receivers[0].plis_sent);
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsTranslatesDecodeStatsCorrectly) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  webrtc::VideoReceiveStream::Stats stats;
-  stats.decoder_implementation_name = "decoder_implementation_name";
-  stats.decode_ms = 2;
-  stats.max_decode_ms = 3;
-  stats.current_delay_ms = 4;
-  stats.target_delay_ms = 5;
-  stats.jitter_buffer_ms = 6;
-  stats.min_playout_delay_ms = 7;
-  stats.render_delay_ms = 8;
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_EQ(stats.decoder_implementation_name,
-            info.receivers[0].decoder_implementation_name);
-  EXPECT_EQ(stats.decode_ms, info.receivers[0].decode_ms);
-  EXPECT_EQ(stats.max_decode_ms, info.receivers[0].max_decode_ms);
-  EXPECT_EQ(stats.current_delay_ms, info.receivers[0].current_delay_ms);
-  EXPECT_EQ(stats.target_delay_ms, info.receivers[0].target_delay_ms);
-  EXPECT_EQ(stats.jitter_buffer_ms, info.receivers[0].jitter_buffer_ms);
-  EXPECT_EQ(stats.min_playout_delay_ms, info.receivers[0].min_playout_delay_ms);
-  EXPECT_EQ(stats.render_delay_ms, info.receivers[0].render_delay_ms);
-}
-
-TEST_F(WebRtcVideoChannel2Test, GetStatsTranslatesReceivePacketStatsCorrectly) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  webrtc::VideoReceiveStream::Stats stats;
-  stats.rtp_stats.transmitted.payload_bytes = 2;
-  stats.rtp_stats.transmitted.header_bytes = 3;
-  stats.rtp_stats.transmitted.padding_bytes = 4;
-  stats.rtp_stats.transmitted.packets = 5;
-  stats.rtcp_stats.cumulative_lost = 6;
-  stats.rtcp_stats.fraction_lost = 7;
-  stream->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_EQ(stats.rtp_stats.transmitted.payload_bytes +
-                stats.rtp_stats.transmitted.header_bytes +
-                stats.rtp_stats.transmitted.padding_bytes,
-            info.receivers[0].bytes_rcvd);
-  EXPECT_EQ(stats.rtp_stats.transmitted.packets,
-            info.receivers[0].packets_rcvd);
-  EXPECT_EQ(stats.rtcp_stats.cumulative_lost, info.receivers[0].packets_lost);
-  EXPECT_EQ(static_cast<float>(stats.rtcp_stats.fraction_lost) / (1 << 8),
-            info.receivers[0].fraction_lost);
-}
-
-TEST_F(WebRtcVideoChannel2Test, TranslatesCallStatsCorrectly) {
-  AddSendStream();
-  AddSendStream();
-  webrtc::Call::Stats stats;
-  stats.rtt_ms = 123;
-  fake_call_->SetStats(stats);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(2u, info.senders.size());
-  EXPECT_EQ(stats.rtt_ms, info.senders[0].rtt_ms);
-  EXPECT_EQ(stats.rtt_ms, info.senders[1].rtt_ms);
-}
-
-TEST_F(WebRtcVideoChannel2Test, TranslatesSenderBitrateStatsCorrectly) {
-  FakeVideoSendStream* stream = AddSendStream();
-  webrtc::VideoSendStream::Stats stats;
-  stats.target_media_bitrate_bps = 156;
-  stats.media_bitrate_bps = 123;
-  stats.substreams[17].total_bitrate_bps = 1;
-  stats.substreams[17].retransmit_bitrate_bps = 2;
-  stats.substreams[42].total_bitrate_bps = 3;
-  stats.substreams[42].retransmit_bitrate_bps = 4;
-  stream->SetStats(stats);
-
-  FakeVideoSendStream* stream2 = AddSendStream();
-  webrtc::VideoSendStream::Stats stats2;
-  stats2.target_media_bitrate_bps = 200;
-  stats2.media_bitrate_bps = 321;
-  stats2.substreams[13].total_bitrate_bps = 5;
-  stats2.substreams[13].retransmit_bitrate_bps = 6;
-  stats2.substreams[21].total_bitrate_bps = 7;
-  stats2.substreams[21].retransmit_bitrate_bps = 8;
-  stream2->SetStats(stats2);
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-  ASSERT_EQ(2u, info.senders.size());
-  // Assuming stream and stream2 corresponds to senders[0] and [1] respectively
-  // is OK as std::maps are sorted and AddSendStream() gives increasing SSRCs.
-  EXPECT_EQ(stats.media_bitrate_bps, info.senders[0].nominal_bitrate);
-  EXPECT_EQ(stats2.media_bitrate_bps, info.senders[1].nominal_bitrate);
-  EXPECT_EQ(stats.target_media_bitrate_bps + stats2.target_media_bitrate_bps,
-            info.bw_estimations[0].target_enc_bitrate);
-  EXPECT_EQ(stats.media_bitrate_bps + stats2.media_bitrate_bps,
-            info.bw_estimations[0].actual_enc_bitrate);
-  EXPECT_EQ(1 + 3 + 5 + 7, info.bw_estimations[0].transmit_bitrate)
-      << "Bandwidth stats should take all streams into account.";
-  EXPECT_EQ(2 + 4 + 6 + 8, info.bw_estimations[0].retransmit_bitrate)
-      << "Bandwidth stats should take all streams into account.";
-}
-
-TEST_F(WebRtcVideoChannel2Test, DefaultReceiveStreamReconfiguresToUseRtx) {
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
-  const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
-
-  ASSERT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
-  const size_t kDataLength = 12;
-  uint8_t data[kDataLength];
-  memset(data, 0, sizeof(data));
-  rtc::SetBE32(&data[8], ssrcs[0]);
-  rtc::Buffer packet(data, kDataLength);
-  rtc::PacketTime packet_time;
-  channel_->OnPacketReceived(&packet, packet_time);
-
-  ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size())
-      << "No default receive stream created.";
-  FakeVideoReceiveStream* recv_stream = fake_call_->GetVideoReceiveStreams()[0];
-  EXPECT_EQ(0u, recv_stream->GetConfig().rtp.rtx.size())
-      << "Default receive stream should not have configured RTX";
-
-  EXPECT_TRUE(channel_->AddRecvStream(
-      cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs)));
-  ASSERT_EQ(1u, fake_call_->GetVideoReceiveStreams().size())
-      << "AddRecvStream should've reconfigured, not added a new receiver.";
-  recv_stream = fake_call_->GetVideoReceiveStreams()[0];
-  ASSERT_GE(2u, recv_stream->GetConfig().rtp.rtx.size());
-  EXPECT_EQ(rtx_ssrcs[0],
-            recv_stream->GetConfig().rtp.rtx.begin()->second.ssrc);
-}
-
-TEST_F(WebRtcVideoChannel2Test, RejectsAddingStreamsWithMissingSsrcsForRtx) {
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
-  const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
-
-  StreamParams sp =
-      cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs);
-  sp.ssrcs = ssrcs;  // Without RTXs, this is the important part.
-
-  EXPECT_FALSE(channel_->AddSendStream(sp));
-  EXPECT_FALSE(channel_->AddRecvStream(sp));
-}
-
-TEST_F(WebRtcVideoChannel2Test, RejectsAddingStreamsWithOverlappingRtxSsrcs) {
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  const std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs1);
-  const std::vector<uint32_t> rtx_ssrcs = MAKE_VECTOR(kRtxSsrcs1);
-
-  StreamParams sp =
-      cricket::CreateSimWithRtxStreamParams("cname", ssrcs, rtx_ssrcs);
-
-  EXPECT_TRUE(channel_->AddSendStream(sp));
-  EXPECT_TRUE(channel_->AddRecvStream(sp));
-
-  // The RTX SSRC is already used in previous streams, using it should fail.
-  sp = cricket::StreamParams::CreateLegacy(rtx_ssrcs[0]);
-  EXPECT_FALSE(channel_->AddSendStream(sp));
-  EXPECT_FALSE(channel_->AddRecvStream(sp));
-
-  // After removing the original stream this should be fine to add (makes sure
-  // that RTX ssrcs are not forever taken).
-  EXPECT_TRUE(channel_->RemoveSendStream(ssrcs[0]));
-  EXPECT_TRUE(channel_->RemoveRecvStream(ssrcs[0]));
-  EXPECT_TRUE(channel_->AddSendStream(sp));
-  EXPECT_TRUE(channel_->AddRecvStream(sp));
-}
-
-TEST_F(WebRtcVideoChannel2Test,
-       RejectsAddingStreamsWithOverlappingSimulcastSsrcs) {
-  static const uint32_t kFirstStreamSsrcs[] = {1, 2, 3};
-  static const uint32_t kOverlappingStreamSsrcs[] = {4, 3, 5};
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  StreamParams sp =
-      cricket::CreateSimStreamParams("cname", MAKE_VECTOR(kFirstStreamSsrcs));
-
-  EXPECT_TRUE(channel_->AddSendStream(sp));
-  EXPECT_TRUE(channel_->AddRecvStream(sp));
-
-  // One of the SSRCs is already used in previous streams, using it should fail.
-  sp = cricket::CreateSimStreamParams("cname",
-                                      MAKE_VECTOR(kOverlappingStreamSsrcs));
-  EXPECT_FALSE(channel_->AddSendStream(sp));
-  EXPECT_FALSE(channel_->AddRecvStream(sp));
-
-  // After removing the original stream this should be fine to add (makes sure
-  // that RTX ssrcs are not forever taken).
-  EXPECT_TRUE(channel_->RemoveSendStream(kFirstStreamSsrcs[0]));
-  EXPECT_TRUE(channel_->RemoveRecvStream(kFirstStreamSsrcs[0]));
-  EXPECT_TRUE(channel_->AddSendStream(sp));
-  EXPECT_TRUE(channel_->AddRecvStream(sp));
-}
-
-TEST_F(WebRtcVideoChannel2Test, ReportsSsrcGroupsInStats) {
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  static const uint32_t kSenderSsrcs[] = {4, 7, 10};
-  static const uint32_t kSenderRtxSsrcs[] = {5, 8, 11};
-
-  StreamParams sender_sp = cricket::CreateSimWithRtxStreamParams(
-      "cname", MAKE_VECTOR(kSenderSsrcs), MAKE_VECTOR(kSenderRtxSsrcs));
-
-  EXPECT_TRUE(channel_->AddSendStream(sender_sp));
-
-  static const uint32_t kReceiverSsrcs[] = {3};
-  static const uint32_t kReceiverRtxSsrcs[] = {2};
-
-  StreamParams receiver_sp = cricket::CreateSimWithRtxStreamParams(
-      "cname", MAKE_VECTOR(kReceiverSsrcs), MAKE_VECTOR(kReceiverRtxSsrcs));
-  EXPECT_TRUE(channel_->AddRecvStream(receiver_sp));
-
-  cricket::VideoMediaInfo info;
-  ASSERT_TRUE(channel_->GetStats(&info));
-
-  ASSERT_EQ(1u, info.senders.size());
-  ASSERT_EQ(1u, info.receivers.size());
-
-  EXPECT_NE(sender_sp.ssrc_groups, receiver_sp.ssrc_groups);
-  EXPECT_EQ(sender_sp.ssrc_groups, info.senders[0].ssrc_groups);
-  EXPECT_EQ(receiver_sp.ssrc_groups, info.receivers[0].ssrc_groups);
-}
-
-TEST_F(WebRtcVideoChannel2Test, MapsReceivedPayloadTypeToCodecName) {
-  FakeVideoReceiveStream* stream = AddRecvStream();
-  webrtc::VideoReceiveStream::Stats stats;
-  cricket::VideoMediaInfo info;
-
-  // Report no codec name before receiving.
-  stream->SetStats(stats);
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_STREQ("", info.receivers[0].codec_name.c_str());
-
-  // Report VP8 if we're receiving it.
-  stats.current_payload_type = kDefaultVp8PlType;
-  stream->SetStats(stats);
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_STREQ(kVp8CodecName, info.receivers[0].codec_name.c_str());
-
-  // Report no codec name for unknown playload types.
-  stats.current_payload_type = 3;
-  stream->SetStats(stats);
-  ASSERT_TRUE(channel_->GetStats(&info));
-  EXPECT_STREQ("", info.receivers[0].codec_name.c_str());
-}
-
-void WebRtcVideoChannel2Test::TestReceiveUnsignalledSsrcPacket(
-    uint8_t payload_type,
-    bool expect_created_receive_stream) {
-  // Add a RED RTX codec.
-  VideoCodec red_rtx_codec =
-      VideoCodec::CreateRtxCodec(kRedRtxPayloadType, kDefaultRedPlType);
-  recv_parameters_.codecs.push_back(red_rtx_codec);
-  EXPECT_TRUE(channel_->SetRecvParameters(recv_parameters_));
-
-  ASSERT_EQ(0u, fake_call_->GetVideoReceiveStreams().size());
-  const size_t kDataLength = 12;
-  uint8_t data[kDataLength];
-  memset(data, 0, sizeof(data));
-
-  rtc::Set8(data, 1, payload_type);
-  rtc::SetBE32(&data[8], kIncomingUnsignalledSsrc);
-  rtc::Buffer packet(data, kDataLength);
-  rtc::PacketTime packet_time;
-  channel_->OnPacketReceived(&packet, packet_time);
-
-  if (expect_created_receive_stream) {
-    EXPECT_EQ(1u, fake_call_->GetVideoReceiveStreams().size())
-        << "Should have created a receive stream for payload type: "
-        << payload_type;
-  } else {
-    EXPECT_EQ(0u, fake_call_->GetVideoReceiveStreams().size())
-        << "Shouldn't have created a receive stream for payload type: "
-        << payload_type;
-  }
-}
-
-TEST_F(WebRtcVideoChannel2Test, Vp8PacketCreatesUnsignalledStream) {
-  TestReceiveUnsignalledSsrcPacket(kDefaultVp8PlType, true);
-}
-
-TEST_F(WebRtcVideoChannel2Test, Vp9PacketCreatesUnsignalledStream) {
-  TestReceiveUnsignalledSsrcPacket(kDefaultVp9PlType, true);
-}
-
-TEST_F(WebRtcVideoChannel2Test, RtxPacketDoesntCreateUnsignalledStream) {
-  TestReceiveUnsignalledSsrcPacket(kDefaultRtxVp8PlType, false);
-}
-
-TEST_F(WebRtcVideoChannel2Test, UlpfecPacketDoesntCreateUnsignalledStream) {
-  TestReceiveUnsignalledSsrcPacket(kDefaultUlpfecType, false);
-}
-
-TEST_F(WebRtcVideoChannel2Test, RedRtxPacketDoesntCreateUnsignalledStream) {
-  TestReceiveUnsignalledSsrcPacket(kRedRtxPayloadType, false);
-}
-
-void WebRtcVideoChannel2Test::TestReceiverLocalSsrcConfiguration(
-    bool receiver_first) {
-  EXPECT_TRUE(channel_->SetSendParameters(send_parameters_));
-
-  const uint32_t kSenderSsrc = 0xC0FFEE;
-  const uint32_t kSecondSenderSsrc = 0xBADCAFE;
-  const uint32_t kReceiverSsrc = 0x4711;
-  const uint32_t kExpectedDefaultReceiverSsrc = 1;
-
-  if (receiver_first) {
-    AddRecvStream(StreamParams::CreateLegacy(kReceiverSsrc));
-    std::vector<FakeVideoReceiveStream*> receive_streams =
-        fake_call_->GetVideoReceiveStreams();
-    ASSERT_EQ(1u, receive_streams.size());
-    // Default local SSRC when we have no sender.
-    EXPECT_EQ(kExpectedDefaultReceiverSsrc,
-              receive_streams[0]->GetConfig().rtp.local_ssrc);
-  }
-  AddSendStream(StreamParams::CreateLegacy(kSenderSsrc));
-  if (!receiver_first)
-    AddRecvStream(StreamParams::CreateLegacy(kReceiverSsrc));
-  std::vector<FakeVideoReceiveStream*> receive_streams =
-      fake_call_->GetVideoReceiveStreams();
-  ASSERT_EQ(1u, receive_streams.size());
-  EXPECT_EQ(kSenderSsrc, receive_streams[0]->GetConfig().rtp.local_ssrc);
-
-  // Removing first sender should fall back to another (in this case the second)
-  // local send stream's SSRC.
-  AddSendStream(StreamParams::CreateLegacy(kSecondSenderSsrc));
-  ASSERT_TRUE(channel_->RemoveSendStream(kSenderSsrc));
-  receive_streams =
-      fake_call_->GetVideoReceiveStreams();
-  ASSERT_EQ(1u, receive_streams.size());
-  EXPECT_EQ(kSecondSenderSsrc, receive_streams[0]->GetConfig().rtp.local_ssrc);
-
-  // Removing the last sender should fall back to default local SSRC.
-  ASSERT_TRUE(channel_->RemoveSendStream(kSecondSenderSsrc));
-  receive_streams =
-      fake_call_->GetVideoReceiveStreams();
-  ASSERT_EQ(1u, receive_streams.size());
-  EXPECT_EQ(kExpectedDefaultReceiverSsrc,
-            receive_streams[0]->GetConfig().rtp.local_ssrc);
-}
-
-TEST_F(WebRtcVideoChannel2Test, ConfiguresLocalSsrc) {
-  TestReceiverLocalSsrcConfiguration(false);
-}
-
-TEST_F(WebRtcVideoChannel2Test, ConfiguresLocalSsrcOnExistingReceivers) {
-  TestReceiverLocalSsrcConfiguration(true);
-}
-
-class WebRtcVideoChannel2SimulcastTest : public testing::Test {
- public:
-  WebRtcVideoChannel2SimulcastTest() : fake_call_(webrtc::Call::Config()) {}
-
-  void SetUp() override {
-    engine_.Init();
-    channel_.reset(engine_.CreateChannel(&fake_call_, VideoOptions()));
-    last_ssrc_ = 123;
-  }
-
- protected:
-  void VerifySimulcastSettings(const VideoCodec& codec,
-                               size_t num_configured_streams,
-                               size_t expected_num_streams) {
-    cricket::VideoSendParameters parameters;
-    parameters.codecs.push_back(codec);
-    ASSERT_TRUE(channel_->SetSendParameters(parameters));
-
-    std::vector<uint32_t> ssrcs = MAKE_VECTOR(kSsrcs3);
-    RTC_DCHECK(num_configured_streams <= ssrcs.size());
-    ssrcs.resize(num_configured_streams);
-
-    FakeVideoSendStream* stream =
-        AddSendStream(CreateSimStreamParams("cname", ssrcs));
-    // Send a full-size frame to trigger a stream reconfiguration to use all
-    // expected simulcast layers.
-    cricket::FakeVideoCapturer capturer;
-    EXPECT_TRUE(channel_->SetCapturer(ssrcs.front(), &capturer));
-    EXPECT_EQ(cricket::CS_RUNNING, capturer.Start(cricket::VideoFormat(
-                                       codec.width, codec.height,
-                                       cricket::VideoFormat::FpsToInterval(30),
-                                       cricket::FOURCC_I420)));
-    channel_->SetSend(true);
-    EXPECT_TRUE(capturer.CaptureFrame());
-
-    std::vector<webrtc::VideoStream> video_streams = stream->GetVideoStreams();
-    ASSERT_EQ(expected_num_streams, video_streams.size());
-
-    std::vector<webrtc::VideoStream> expected_streams = GetSimulcastConfig(
-        num_configured_streams, codec.width, codec.height, 0, kDefaultQpMax,
-        codec.framerate != 0 ? codec.framerate : kDefaultFramerate);
-
-    ASSERT_EQ(expected_streams.size(), video_streams.size());
-
-    size_t num_streams = video_streams.size();
-    int total_max_bitrate_bps = 0;
-    for (size_t i = 0; i < num_streams; ++i) {
-      EXPECT_EQ(expected_streams[i].width, video_streams[i].width);
-      EXPECT_EQ(expected_streams[i].height, video_streams[i].height);
-
-      EXPECT_GT(video_streams[i].max_framerate, 0);
-      EXPECT_EQ(expected_streams[i].max_framerate,
-                video_streams[i].max_framerate);
-
-      EXPECT_GT(video_streams[i].min_bitrate_bps, 0);
-      EXPECT_EQ(expected_streams[i].min_bitrate_bps,
-                video_streams[i].min_bitrate_bps);
-
-      EXPECT_GT(video_streams[i].target_bitrate_bps, 0);
-      EXPECT_EQ(expected_streams[i].target_bitrate_bps,
-                video_streams[i].target_bitrate_bps);
-
-      EXPECT_GT(video_streams[i].max_bitrate_bps, 0);
-      EXPECT_EQ(expected_streams[i].max_bitrate_bps,
-                video_streams[i].max_bitrate_bps);
-
-      EXPECT_GT(video_streams[i].max_qp, 0);
-      EXPECT_EQ(expected_streams[i].max_qp, video_streams[i].max_qp);
-
-      EXPECT_FALSE(expected_streams[i].temporal_layer_thresholds_bps.empty());
-      EXPECT_EQ(expected_streams[i].temporal_layer_thresholds_bps,
-                video_streams[i].temporal_layer_thresholds_bps);
-
-      if (i == num_streams - 1) {
-        total_max_bitrate_bps += video_streams[i].max_bitrate_bps;
-      } else {
-        total_max_bitrate_bps += video_streams[i].target_bitrate_bps;
-      }
-    }
-    cricket::VideoMediaInfo info;
-    ASSERT_TRUE(channel_->GetStats(&info));
-    ASSERT_EQ(1u, info.senders.size());
-    EXPECT_EQ(total_max_bitrate_bps, info.senders[0].preferred_bitrate);
-
-    EXPECT_TRUE(channel_->SetCapturer(ssrcs.front(), NULL));
-  }
-
-  FakeVideoSendStream* AddSendStream() {
-    return AddSendStream(StreamParams::CreateLegacy(last_ssrc_++));
-  }
-
-  FakeVideoSendStream* AddSendStream(const StreamParams& sp) {
-    size_t num_streams =
-        fake_call_.GetVideoSendStreams().size();
-    EXPECT_TRUE(channel_->AddSendStream(sp));
-    std::vector<FakeVideoSendStream*> streams =
-        fake_call_.GetVideoSendStreams();
-    EXPECT_EQ(num_streams + 1, streams.size());
-    return streams[streams.size() - 1];
-  }
-
-  std::vector<FakeVideoSendStream*> GetFakeSendStreams() {
-    return fake_call_.GetVideoSendStreams();
-  }
-
-  FakeVideoReceiveStream* AddRecvStream() {
-    return AddRecvStream(StreamParams::CreateLegacy(last_ssrc_++));
-  }
-
-  FakeVideoReceiveStream* AddRecvStream(const StreamParams& sp) {
-    size_t num_streams =
-        fake_call_.GetVideoReceiveStreams().size();
-    EXPECT_TRUE(channel_->AddRecvStream(sp));
-    std::vector<FakeVideoReceiveStream*> streams =
-        fake_call_.GetVideoReceiveStreams();
-    EXPECT_EQ(num_streams + 1, streams.size());
-    return streams[streams.size() - 1];
-  }
-
-  FakeCall fake_call_;
-  WebRtcVideoEngine2 engine_;
-  rtc::scoped_ptr<VideoMediaChannel> channel_;
-  uint32_t last_ssrc_;
-};
-
-TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWith2SimulcastStreams) {
-  VerifySimulcastSettings(kVp8Codec, 2, 2);
-}
-
-TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWith3SimulcastStreams) {
-  VerifySimulcastSettings(kVp8Codec720p, 3, 3);
-}
-
-// Test that we normalize send codec format size in simulcast.
-TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWithOddSizeInSimulcast) {
-  cricket::VideoCodec codec(kVp8Codec270p);
-  codec.width += 1;
-  codec.height += 1;
-  VerifySimulcastSettings(codec, 2, 2);
-}
-}  // namespace cricket
-
-#endif  // HAVE_WEBRTC_VIDEO