Expose network to deliverrtp histogram metric

Description and metadata are here:
https://chromium-review.googlesource.com/c/chromium/src/+/5575496

Bug: webrtc:341266986
Change-Id: I248373d709f1fc6028c219da91487471d6e7605d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/352500
Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
Commit-Queue: Lionel Koenig <lionelk@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42399}

call/call.cc

@@ -1372,6 +1372,11 @@ void Call::DeliverRtpPacket(
     return;
   }
 
+  const TimeDelta nw_to_deliver_delay =
+      env_.clock().CurrentTime() - packet.arrival_time();
+  RTC_HISTOGRAM_COUNTS_100000("WebRTC.TimeFromNetworkToDeliverRtpPacketUs",
+                              nw_to_deliver_delay.us());
+
   RtpStreamReceiverController& receiver_controller =
       media_type == MediaType::AUDIO ? audio_receiver_controller_
                                      : video_receiver_controller_;