Revert of Remove ViEEncoder::SetNetworkStatus

webrtc/video/video_send_stream.cc

Index: webrtc/video/video_send_stream.cc
diff --git a/webrtc/video/video_send_stream.cc b/webrtc/video/video_send_stream.cc
index f673a98a3e1797ffc297bc904d9bea47ccd12dd4..840991b4baceadf16fe026bd02915d816aa84da8 100644
--- a/webrtc/video/video_send_stream.cc
+++ b/webrtc/video/video_send_stream.cc
@@ -491,6 +491,21 @@
   }
 }
 
+void VideoSendStream::SignalNetworkState(NetworkState state) {
+  // When network goes up, enable RTCP status before setting transmission state.
+  // When it goes down, disable RTCP afterwards. This ensures that any packets
+  // sent due to the network state changed will not be dropped.
+  if (state == kNetworkUp) {
+    for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)
+      rtp_rtcp->SetRTCPStatus(config_.rtp.rtcp_mode);
+  }
+  vie_encoder_.SetNetworkTransmissionState(state == kNetworkUp);
+  if (state == kNetworkDown) {
+    for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)
+      rtp_rtcp->SetRTCPStatus(RtcpMode::kOff);
+  }
+}
+
 bool VideoSendStream::DeliverRtcp(const uint8_t* packet, size_t length) {
   for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)
     rtp_rtcp->IncomingRtcpPacket(packet, length);
@@ -764,13 +779,6 @@
   return rtp_states;
 }
 
-void VideoSendStream::SignalNetworkState(NetworkState state) {
-  for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_) {
-    rtp_rtcp->SetRTCPStatus(state == kNetworkUp ? config_.rtp.rtcp_mode
-                                                : RtcpMode::kOff);
-  }
-}
-
 int VideoSendStream::GetPaddingNeededBps() const {
   return vie_encoder_.GetPaddingNeededBps();
 }