Change a LOG(WARNING) to a DLOG(WARNING). No functional change.

net/quic/quic_connection.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_connection.h"
 
 #include <string.h>
 #include <sys/types.h>
 
 #include <algorithm>
@@ skipping 856 matching lines @@
       LOG(WARNING) << ENDPOINT
                    << "Peer sent missing packet: " << incoming_ack.packets.Min()
                    << " which is smaller than least_packet_awaited_by_peer_: "
                    << sent_packet_manager_->GetLeastPacketAwaitedByPeer(
                           incoming_ack.path_id);
       return "Missing packet smaller than least awaited.";
     }
     if (!sent_entropy_manager_.IsValidEntropy(incoming_ack.largest_observed,
                                               incoming_ack.packets,
                                               incoming_ack.entropy_hash)) {
-      LOG(WARNING) << ENDPOINT << "Peer sent invalid entropy."
-                   << " largest_observed:" << incoming_ack.largest_observed
-                   << " last_received:" << last_header_.packet_number;
+      DLOG(WARNING) << ENDPOINT << "Peer sent invalid entropy."
+                    << " largest_observed:" << incoming_ack.largest_observed
+                    << " last_received:" << last_header_.packet_number;
       return "Invalid entropy.";
     }
   } else {
     if (!incoming_ack.packets.Empty() &&
         incoming_ack.packets.Max() != incoming_ack.largest_observed) {
       QUIC_BUG << ENDPOINT
                << "Peer last received packet: " << incoming_ack.packets.Max()
                << " which is not equal to largest observed: "
                << incoming_ack.largest_observed;
       return "Last received packet not equal to largest observed.";
@@ skipping 1621 matching lines @@
 // the sender and a signaling mechanism -- if the sender uses a
 // different MinRTO, we may get spurious retransmissions. May not have
 // any benefits, but if the delayed ack becomes a significant source
 // of (likely, tail) latency, then consider such a mechanism.
 const QuicTime::Delta QuicConnection::DelayedAckTime() {
   return QuicTime::Delta::FromMilliseconds(
       min(kMaxDelayedAckTimeMs, kMinRetransmissionTimeMs / 2));
 }
 
 }  // namespace net