Add histogram stats for send delay for a sent video stream.

webrtc/call/call.cc

Index: webrtc/call/call.cc
diff --git a/webrtc/call/call.cc b/webrtc/call/call.cc
index 4682e926bd719bc4a01fed9129e90ad1a5114dd7..7edd3c5394262da55d6287bdc21c9f742db98036 100644
--- a/webrtc/call/call.cc
+++ b/webrtc/call/call.cc
@@ -568,6 +568,12 @@ void Call::OnSentPacket(const rtc::SentPacket& sent_packet) {
   if (first_packet_sent_ms_ == -1)
     first_packet_sent_ms_ = clock_->TimeInMilliseconds();
   congestion_controller_->OnSentPacket(sent_packet);
+
+  ReadLockScoped read_lock(*send_crit_);
+  for (VideoSendStream* stream : video_send_streams_) {
+    if (stream->OnSentPacket(sent_packet.packet_id))

[stefan-webrtc, 2016/01/18 19:48:25]

Should there be a TODO here to use the sent_packet.send_time_ms?

[åsapersson, 2016/04/06 14:52:37]

Done.

+      return;
+  }
 }
 
 void Call::OnNetworkChanged(uint32_t target_bitrate_bps, uint8_t fraction_loss,