Add GetDebugState() in SendAlgorithmInterface().

net/quic/core/congestion_control/pacing_sender.cc

 // Copyright (c) 2013 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/core/congestion_control/pacing_sender.h"
 
+#include <string>
+
 #include "net/quic/core/quic_flags.h"
 
 using std::min;
 
 namespace net {
 namespace {
 
 // The estimated system alarm granularity.
 static const QuicTime::Delta kAlarmGranularity =
     QuicTime::Delta::FromMilliseconds(1);
@@ skipping 184 matching lines @@
 }
 
 QuicByteCount PacingSender::GetSlowStartThreshold() const {
   return sender_->GetSlowStartThreshold();
 }
 
 CongestionControlType PacingSender::GetCongestionControlType() const {
   return sender_->GetCongestionControlType();
 }
 
+std::string PacingSender::GetDebugState() const {
+  return sender_->GetDebugState();
+}
+
 }  // namespace net