Only use paced packets for estimating bitrate probes.

webrtc/video_engine/vie_receiver.cc

Index: webrtc/video_engine/vie_receiver.cc
diff --git a/webrtc/video_engine/vie_receiver.cc b/webrtc/video_engine/vie_receiver.cc
index dcdacd68ff31484c48008f4abc7674494c3b3add..a1baf29849ff621bc57f3d0f2c90b0afd6140ead 100644
--- a/webrtc/video_engine/vie_receiver.cc
+++ b/webrtc/video_engine/vie_receiver.cc
@@ -280,8 +280,8 @@ int ViEReceiver::InsertRTPPacket(const uint8_t* rtp_packet,
     }
   }
 
-  remote_bitrate_estimator_->IncomingPacket(arrival_time_ms,
-                                            payload_length, header);
+  remote_bitrate_estimator_->IncomingPacket(arrival_time_ms, payload_length,
+                                            header, true);
   header.payload_type_frequency = kVideoPayloadTypeFrequency;
 
   bool in_order = IsPacketInOrder(header);