Update video histograms that do not have a minimum lifetime limit before being recorded.

webrtc/modules/rtp_rtcp/source/ulpfec_receiver_impl.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "webrtc/modules/rtp_rtcp/source/ulpfec_receiver_impl.h"
 
 #include <memory>
 #include <utility>
 
 #include "webrtc/base/checks.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/modules/rtp_rtcp/source/byte_io.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_receiver_video.h"
+#include "webrtc/system_wrappers/include/clock.h"
 
 namespace webrtc {
 
 UlpfecReceiver* UlpfecReceiver::Create(RtpData* callback) {
   return new UlpfecReceiverImpl(callback);
 }
 
 UlpfecReceiverImpl::UlpfecReceiverImpl(RtpData* callback)
     : recovered_packet_callback_(callback),
       fec_(ForwardErrorCorrection::CreateUlpfec()) {}
@@ skipping 88 matching lines @@
       return -1;
     }
     // Check that the packet is long enough to contain data in the following
     // block.
     if (block_length > payload_data_length - (red_header_length + 1)) {
       LOG(LS_WARNING) << "Block length longer than packet.";
       return -1;
     }
   }
   ++packet_counter_.num_packets;
+  if (packet_counter_.first_packet_time_ms == -1) {
+    packet_counter_.first_packet_time_ms =
+        Clock::GetRealTimeClock()->TimeInMilliseconds();
+  }
 
   std::unique_ptr<ForwardErrorCorrection::ReceivedPacket>
       second_received_packet;
   if (block_length > 0) {
     // Handle block length, split into two packets.
     red_header_length = 5;
 
     // Copy RTP header.
     memcpy(received_packet->pkt->data, incoming_rtp_packet,
            header.headerLength);
@@ skipping 95 matching lines @@
       return -1;
     }
     crit_sect_.Enter();
     recovered_packet->returned = true;
   }
   crit_sect_.Leave();
   return 0;
 }
 
 }  // namespace webrtc