diff --git a/webrtc/audio/audio_send_stream.cc b/webrtc/audio/audio_send_stream.cc
index 6f72998172..856155bf7f 100644
--- a/webrtc/audio/audio_send_stream.cc
+++ b/webrtc/audio/audio_send_stream.cc
@@ -276,6 +276,7 @@ void AudioSendStream::OnPacketAdded(uint32_t ssrc, uint16_t seq_num) {
 void AudioSendStream::OnPacketFeedbackVector(
     const std::vector<PacketFeedback>& packet_feedback_vector) {
   // TODO(elad.alon): This fails in UT; fix and uncomment.
+  // See: https://bugs.chromium.org/p/webrtc/issues/detail?id=7405
   // RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
   rtc::Optional<float> plr;
   rtc::Optional<float> rplr;
diff --git a/webrtc/voice_engine/channel_proxy.cc b/webrtc/voice_engine/channel_proxy.cc
index 64af08b420..de982977ca 100644
--- a/webrtc/voice_engine/channel_proxy.cc
+++ b/webrtc/voice_engine/channel_proxy.cc
@@ -372,13 +372,16 @@ bool ChannelProxy::SetSendCNPayloadType(int type,
 }
 
 void ChannelProxy::OnTwccBasedUplinkPacketLossRate(float packet_loss_rate) {
-  RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
+  // TODO(elad.alon): This fails in UT; fix and uncomment.
+  // See: https://bugs.chromium.org/p/webrtc/issues/detail?id=7405
+  // RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
   channel()->OnTwccBasedUplinkPacketLossRate(packet_loss_rate);
 }
 
 void ChannelProxy::OnRecoverableUplinkPacketLossRate(
     float recoverable_packet_loss_rate) {
   // TODO(elad.alon): This fails in UT; fix and uncomment.
+  // See: https://bugs.chromium.org/p/webrtc/issues/detail?id=7405
   // RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
   channel()->OnRecoverableUplinkPacketLossRate(recoverable_packet_loss_rate);
 }