Reduce noisy log message to VLOG rather than LOG(INFO).

Protected by Debug logging-only change.

PiperOrigin-RevId: 332072789
Change-Id: Ica773d24771269fd61a7c1f279466e4cd6ea2b30

quic/core/quic_network_blackhole_detector.cc

diff --git a/quic/core/quic_network_blackhole_detector.cc b/quic/core/quic_network_blackhole_detector.cc
index 95b3975..79deba8 100644
--- a/quic/core/quic_network_blackhole_detector.cc
+++ b/quic/core/quic_network_blackhole_detector.cc
@@ -40,12 +40,12 @@
     return;
   }
 
-  QUIC_DLOG(INFO) << "BlackholeDetector alarm firing. next_deadline:"
-                  << next_deadline
-                  << ", path_degrading_deadline_:" << path_degrading_deadline_
-                  << ", path_mtu_reduction_deadline_:"
-                  << path_mtu_reduction_deadline_
-                  << ", blackhole_deadline_:" << blackhole_deadline_;
+  QUIC_DVLOG(1) << "BlackholeDetector alarm firing. next_deadline:"
+                << next_deadline
+                << ", path_degrading_deadline_:" << path_degrading_deadline_
+                << ", path_mtu_reduction_deadline_:"
+                << path_mtu_reduction_deadline_
+                << ", blackhole_deadline_:" << blackhole_deadline_;
   if (path_degrading_deadline_ == next_deadline) {
     path_degrading_deadline_ = QuicTime::Zero();
     delegate_->OnPathDegradingDetected();
@@ -110,11 +110,11 @@
 void QuicNetworkBlackholeDetector::UpdateAlarm() const {
   QuicTime next_deadline = GetEarliestDeadline();
 
-  QUIC_DLOG(INFO) << "Updating alarm. next_deadline:" << next_deadline
-                  << ", path_degrading_deadline_:" << path_degrading_deadline_
-                  << ", path_mtu_reduction_deadline_:"
-                  << path_mtu_reduction_deadline_
-                  << ", blackhole_deadline_:" << blackhole_deadline_;
+  QUIC_DVLOG(1) << "Updating alarm. next_deadline:" << next_deadline
+                << ", path_degrading_deadline_:" << path_degrading_deadline_
+                << ", path_mtu_reduction_deadline_:"
+                << path_mtu_reduction_deadline_
+                << ", blackhole_deadline_:" << blackhole_deadline_;
 
   alarm_->Update(next_deadline, kAlarmGranularity);
 }