| Index: webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc
 | 
| diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc b/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc
 | 
| index cdac7a72101fe79339f6383990d8b0fdd0e2e2a5..c86d92b307a8609aa3d17cf4cc056ef5b1406054 100644
 | 
| --- a/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc
 | 
| +++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_unittest.cc
 | 
| @@ -150,7 +150,7 @@ class RtpSenderTest : public ::testing::Test {
 | 
|          false, &fake_clock_, &transport_, pacer ? &mock_paced_sender_ : nullptr,
 | 
|          nullptr, &seq_num_allocator_, nullptr, nullptr, nullptr, nullptr,
 | 
|          &mock_rtc_event_log_, &send_packet_observer_,
 | 
| -        &retransmission_rate_limiter_));
 | 
| +        &retransmission_rate_limiter_, nullptr));
 | 
|      rtp_sender_->SetSendPayloadType(kPayload);
 | 
|      rtp_sender_->SetSequenceNumber(kSeqNum);
 | 
|      rtp_sender_->SetTimestampOffset(0);
 | 
| @@ -444,7 +444,7 @@ TEST_F(RtpSenderTestWithoutPacer, SendsPacketsWithTransportSequenceNumber) {
 | 
|    rtp_sender_.reset(new RTPSender(
 | 
|        false, &fake_clock_, &transport_, nullptr, nullptr, &seq_num_allocator_,
 | 
|        &feedback_observer_, nullptr, nullptr, nullptr, &mock_rtc_event_log_,
 | 
| -      &send_packet_observer_, &retransmission_rate_limiter_));
 | 
| +      &send_packet_observer_, &retransmission_rate_limiter_, nullptr));
 | 
|    EXPECT_EQ(0, rtp_sender_->RegisterRtpHeaderExtension(
 | 
|                     kRtpExtensionTransportSequenceNumber,
 | 
|                     kTransportSequenceNumberExtensionId));
 | 
| @@ -487,11 +487,11 @@ TEST_F(RtpSenderTestWithoutPacer, OnSendPacketUpdated) {
 | 
|  }
 | 
|  
 | 
|  TEST_F(RtpSenderTest, SendsPacketsWithTransportSequenceNumber) {
 | 
| -  rtp_sender_.reset(
 | 
| -      new RTPSender(false, &fake_clock_, &transport_, &mock_paced_sender_,
 | 
| -                    nullptr, &seq_num_allocator_, &feedback_observer_, nullptr,
 | 
| -                    nullptr, nullptr, &mock_rtc_event_log_,
 | 
| -                    &send_packet_observer_, &retransmission_rate_limiter_));
 | 
| +  rtp_sender_.reset(new RTPSender(
 | 
| +      false, &fake_clock_, &transport_, &mock_paced_sender_, nullptr,
 | 
| +      &seq_num_allocator_, &feedback_observer_, nullptr, nullptr, nullptr,
 | 
| +      &mock_rtc_event_log_, &send_packet_observer_,
 | 
| +      &retransmission_rate_limiter_, nullptr));
 | 
|    rtp_sender_->SetSequenceNumber(kSeqNum);
 | 
|    rtp_sender_->SetSSRC(kSsrc);
 | 
|    rtp_sender_->SetStorePacketsStatus(true, 10);
 | 
| @@ -775,7 +775,8 @@ TEST_F(RtpSenderTest, OnSendPacketNotUpdatedWithoutSeqNumAllocator) {
 | 
|    rtp_sender_.reset(new RTPSender(
 | 
|        false, &fake_clock_, &transport_, &mock_paced_sender_, nullptr,
 | 
|        nullptr /* TransportSequenceNumberAllocator */, nullptr, nullptr, nullptr,
 | 
| -      nullptr, nullptr, &send_packet_observer_, &retransmission_rate_limiter_));
 | 
| +      nullptr, nullptr, &send_packet_observer_, &retransmission_rate_limiter_,
 | 
| +      nullptr));
 | 
|    rtp_sender_->SetSequenceNumber(kSeqNum);
 | 
|    rtp_sender_->SetSSRC(kSsrc);
 | 
|    EXPECT_EQ(0, rtp_sender_->RegisterRtpHeaderExtension(
 | 
| @@ -801,7 +802,7 @@ TEST_F(RtpSenderTest, SendRedundantPayloads) {
 | 
|    rtp_sender_.reset(new RTPSender(
 | 
|        false, &fake_clock_, &transport, &mock_paced_sender_, nullptr, nullptr,
 | 
|        nullptr, nullptr, nullptr, nullptr, &mock_rtc_event_log_, nullptr,
 | 
| -      &retransmission_rate_limiter_));
 | 
| +      &retransmission_rate_limiter_, nullptr));
 | 
|    rtp_sender_->SetSequenceNumber(kSeqNum);
 | 
|    rtp_sender_->SetSSRC(kSsrc);
 | 
|    rtp_sender_->SetRtxPayloadType(kRtxPayload, kPayload);
 | 
| @@ -919,11 +920,11 @@ TEST_F(RtpSenderTest, SendFlexfecPackets) {
 | 
|                                 kNoRtpExtensions, &fake_clock_);
 | 
|  
 | 
|    // Reset |rtp_sender_| to use FlexFEC.
 | 
| -  rtp_sender_.reset(
 | 
| -      new RTPSender(false, &fake_clock_, &transport_, &mock_paced_sender_,
 | 
| -                    &flexfec_sender, &seq_num_allocator_, nullptr, nullptr,
 | 
| -                    nullptr, nullptr, &mock_rtc_event_log_,
 | 
| -                    &send_packet_observer_, &retransmission_rate_limiter_));
 | 
| +  rtp_sender_.reset(new RTPSender(
 | 
| +      false, &fake_clock_, &transport_, &mock_paced_sender_, &flexfec_sender,
 | 
| +      &seq_num_allocator_, nullptr, nullptr, nullptr, nullptr,
 | 
| +      &mock_rtc_event_log_, &send_packet_observer_,
 | 
| +      &retransmission_rate_limiter_, nullptr));
 | 
|    rtp_sender_->SetSSRC(kMediaSsrc);
 | 
|    rtp_sender_->SetSequenceNumber(kSeqNum);
 | 
|    rtp_sender_->SetSendPayloadType(kMediaPayloadType);
 | 
| @@ -977,7 +978,7 @@ TEST_F(RtpSenderTestWithoutPacer, SendFlexfecPackets) {
 | 
|                                    &flexfec_sender, &seq_num_allocator_, nullptr,
 | 
|                                    nullptr, nullptr, nullptr,
 | 
|                                    &mock_rtc_event_log_, &send_packet_observer_,
 | 
| -                                  &retransmission_rate_limiter_));
 | 
| +                                  &retransmission_rate_limiter_, nullptr));
 | 
|    rtp_sender_->SetSSRC(kMediaSsrc);
 | 
|    rtp_sender_->SetSequenceNumber(kSeqNum);
 | 
|    rtp_sender_->SetSendPayloadType(kMediaPayloadType);
 | 
| @@ -1020,10 +1021,10 @@ TEST_F(RtpSenderTest, FrameCountCallbacks) {
 | 
|      FrameCounts frame_counts_;
 | 
|    } callback;
 | 
|  
 | 
| -  rtp_sender_.reset(new RTPSender(false, &fake_clock_, &transport_,
 | 
| -                                  &mock_paced_sender_, nullptr, nullptr,
 | 
| -                                  nullptr, nullptr, &callback, nullptr, nullptr,
 | 
| -                                  nullptr, &retransmission_rate_limiter_));
 | 
| +  rtp_sender_.reset(
 | 
| +      new RTPSender(false, &fake_clock_, &transport_, &mock_paced_sender_,
 | 
| +                    nullptr, nullptr, nullptr, nullptr, &callback, nullptr,
 | 
| +                    nullptr, nullptr, &retransmission_rate_limiter_, nullptr));
 | 
|  
 | 
|    char payload_name[RTP_PAYLOAD_NAME_SIZE] = "GENERIC";
 | 
|    const uint8_t payload_type = 127;
 | 
| @@ -1085,7 +1086,7 @@ TEST_F(RtpSenderTest, BitrateCallbacks) {
 | 
|    rtp_sender_.reset(new RTPSender(false, &fake_clock_, &transport_, nullptr,
 | 
|                                    nullptr, nullptr, nullptr, &callback, nullptr,
 | 
|                                    nullptr, nullptr, nullptr,
 | 
| -                                  &retransmission_rate_limiter_));
 | 
| +                                  &retransmission_rate_limiter_, nullptr));
 | 
|  
 | 
|    // Simulate kNumPackets sent with kPacketInterval ms intervals, with the
 | 
|    // number of packets selected so that we fill (but don't overflow) the one
 | 
| @@ -1143,7 +1144,7 @@ class RtpSenderAudioTest : public RtpSenderTest {
 | 
|      rtp_sender_.reset(new RTPSender(true, &fake_clock_, &transport_, nullptr,
 | 
|                                      nullptr, nullptr, nullptr, nullptr, nullptr,
 | 
|                                      nullptr, nullptr, nullptr,
 | 
| -                                    &retransmission_rate_limiter_));
 | 
| +                                    &retransmission_rate_limiter_, nullptr));
 | 
|      rtp_sender_->SetSequenceNumber(kSeqNum);
 | 
|    }
 | 
|  };
 | 
| @@ -1494,4 +1495,52 @@ TEST_F(RtpSenderVideoTest, SendVideoWithCameraAndFlipCVO) {
 | 
|              ConvertCVOByteToVideoRotation(flip_bit | camera_bit | 3));
 | 
|  }
 | 
|  
 | 
| +namespace {
 | 
| +class MockOverheadObserver : public OverheadObserver {
 | 
| + public:
 | 
| +  MOCK_METHOD1(OnOverheadChanged, void(size_t overhead_bytes_per_packet));
 | 
| +};
 | 
| +}  // namespace
 | 
| +
 | 
| +TEST_F(RtpSenderTest, OnOverheadChanged) {
 | 
| +  MockOverheadObserver mock_overhead_observer;
 | 
| +  rtp_sender_.reset(
 | 
| +      new RTPSender(false, &fake_clock_, &transport_, nullptr, nullptr, nullptr,
 | 
| +                    nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
 | 
| +                    &retransmission_rate_limiter_, &mock_overhead_observer));
 | 
| +
 | 
| +  // Transport overhead is set to 28B.
 | 
| +  EXPECT_CALL(mock_overhead_observer, OnOverheadChanged(28)).Times(1);
 | 
| +  rtp_sender_->SetTransportOverhead(28);
 | 
| +
 | 
| +  // RTP overhead is 12B.
 | 
| +  // 28B + 12B = 40B
 | 
| +  EXPECT_CALL(mock_overhead_observer, OnOverheadChanged(40)).Times(1);
 | 
| +  SendGenericPayload();
 | 
| +
 | 
| +  rtp_sender_->RegisterRtpHeaderExtension(kRtpExtensionTransmissionTimeOffset,
 | 
| +                                          kTransmissionTimeOffsetExtensionId);
 | 
| +
 | 
| +  // TransmissionTimeOffset extension has a size of 8B.
 | 
| +  // 28B + 12B + 8B = 48B
 | 
| +  EXPECT_CALL(mock_overhead_observer, OnOverheadChanged(48)).Times(1);
 | 
| +  SendGenericPayload();
 | 
| +}
 | 
| +
 | 
| +TEST_F(RtpSenderTest, DoesNotUpdateOverheadOnEqualSize) {
 | 
| +  MockOverheadObserver mock_overhead_observer;
 | 
| +  rtp_sender_.reset(
 | 
| +      new RTPSender(false, &fake_clock_, &transport_, nullptr, nullptr, nullptr,
 | 
| +                    nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
 | 
| +                    &retransmission_rate_limiter_, &mock_overhead_observer));
 | 
| +
 | 
| +  EXPECT_CALL(mock_overhead_observer, OnOverheadChanged(_)).Times(1);
 | 
| +  rtp_sender_->SetTransportOverhead(28);
 | 
| +  rtp_sender_->SetTransportOverhead(28);
 | 
| +
 | 
| +  EXPECT_CALL(mock_overhead_observer, OnOverheadChanged(_)).Times(1);
 | 
| +  SendGenericPayload();
 | 
| +  SendGenericPayload();
 | 
| +}
 | 
| +
 | 
|  }  // namespace webrtc
 | 
| 
 |