Update from https://crrev.com/316786

net/udp/udp_socket_win.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/udp/udp_socket_win.h"
 
 #include <mstcpip.h>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
-#include "base/metrics/stats_counters.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/rand_util.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log.h"
 #include "net/base/net_util.h"
 #include "net/base/network_activity_monitor.h"
 #include "net/base/winsock_init.h"
 #include "net/base/winsock_util.h"
@@ skipping 665 matching lines @@
     net_log_.AddEventWithNetErrorCode(NetLog::TYPE_UDP_RECEIVE_ERROR, result);
     return;
   }
 
   if (net_log_.IsLogging()) {
     net_log_.AddEvent(
         NetLog::TYPE_UDP_BYTES_RECEIVED,
         CreateNetLogUDPDataTranferCallback(result, bytes, address));
   }
 
-  base::StatsCounter read_bytes("udp.read_bytes");
-  read_bytes.Add(result);
   NetworkActivityMonitor::GetInstance()->IncrementBytesReceived(result);
 }
 
 void UDPSocketWin::LogWrite(int result,
                             const char* bytes,
                             const IPEndPoint* address) const {
   if (result < 0) {
     net_log_.AddEventWithNetErrorCode(NetLog::TYPE_UDP_SEND_ERROR, result);
     return;
   }
 
   if (net_log_.IsLogging()) {
     net_log_.AddEvent(
         NetLog::TYPE_UDP_BYTES_SENT,
         CreateNetLogUDPDataTranferCallback(result, bytes, address));
   }
 
-  base::StatsCounter write_bytes("udp.write_bytes");
-  write_bytes.Add(result);
   NetworkActivityMonitor::GetInstance()->IncrementBytesSent(result);
 }
 
 int UDPSocketWin::InternalRecvFromOverlapped(IOBuffer* buf,
                                              int buf_len,
                                              IPEndPoint* address) {
   DCHECK(!core_->read_iobuffer_.get());
   SockaddrStorage& storage = core_->recv_addr_storage_;
   storage.addr_len = sizeof(storage.addr_storage);
 
@@ skipping 445 matching lines @@
 void UDPSocketWin::DetachFromThread() {
   base::NonThreadSafe::DetachFromThread();
 }
 
 void UDPSocketWin::UseNonBlockingIO() {
   DCHECK(!core_);
   use_non_blocking_io_ = true;
 }
 
 }  // namespace net