Revert of Remove ViEEncoder::SetNetworkStatus

webrtc/video/vie_encoder.cc

Index: webrtc/video/vie_encoder.cc
diff --git a/webrtc/video/vie_encoder.cc b/webrtc/video/vie_encoder.cc
index 256e09365234fe3194cc660fb50e96b4e839ec66..e2ac52126ed40ec9a38951650a5383704fc32696 100644
--- a/webrtc/video/vie_encoder.cc
+++ b/webrtc/video/vie_encoder.cc
@@ -63,6 +63,7 @@
       encoder_config_(),
       min_transmit_bitrate_bps_(0),
       last_observed_bitrate_bps_(0),
+      network_is_transmitting_(true),
       encoder_paused_(true),
       encoder_paused_and_dropped_frame_(false),
       module_process_thread_(module_process_thread),
@@ -84,6 +85,13 @@
 
 ViEEncoder::~ViEEncoder() {
   module_process_thread_->DeRegisterModule(&video_sender_);
+}
+
+void ViEEncoder::SetNetworkTransmissionState(bool is_transmitting) {
+  {
+    rtc::CritScope lock(&data_cs_);
+    network_is_transmitting_ = is_transmitting;
+  }
 }
 
 void ViEEncoder::Pause() {
@@ -214,9 +222,13 @@
 bool ViEEncoder::EncoderPaused() const {
   // Pause video if paused by caller or as long as the network is down or the
   // pacer queue has grown too large in buffered mode.
-  // If the pacer queue has grown to large or the network is down,
-  // last_observed_bitrate_bps_ will be 0.
-  return encoder_paused_ || video_suspended_ || last_observed_bitrate_bps_ == 0;
+  if (encoder_paused_) {
+    return true;
+  }
+  if (video_suspended_ || last_observed_bitrate_bps_ == 0) {
+    return true;
+  }
+  return !network_is_transmitting_;
 }
 
 void ViEEncoder::TraceFrameDropStart() {