Delete the ClientSocketPoolHistograms class.

net/socket/socks_client_socket_pool.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/socket/socks_client_socket_pool.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/time/time.h"
 #include "base/values.h"
@@ skipping 174 matching lines @@
 
 base::TimeDelta
 SOCKSClientSocketPool::SOCKSConnectJobFactory::ConnectionTimeout() const {
   return transport_pool_->ConnectionTimeout() +
       base::TimeDelta::FromSeconds(kSOCKSConnectJobTimeoutInSeconds);
 }
 
 SOCKSClientSocketPool::SOCKSClientSocketPool(
     int max_sockets,
     int max_sockets_per_group,
-    ClientSocketPoolHistograms* histograms,
     HostResolver* host_resolver,
     TransportClientSocketPool* transport_pool,
     NetLog* net_log)
     : transport_pool_(transport_pool),
-      base_(this, max_sockets, max_sockets_per_group, histograms,
-            ClientSocketPool::unused_idle_socket_timeout(),
-            ClientSocketPool::used_idle_socket_timeout(),
-            new SOCKSConnectJobFactory(transport_pool,
-                                       host_resolver,
-                                       net_log)) {
+      base_(
+          this,
+          max_sockets,
+          max_sockets_per_group,
+          ClientSocketPool::unused_idle_socket_timeout(),
+          ClientSocketPool::used_idle_socket_timeout(),
+          new SOCKSConnectJobFactory(transport_pool, host_resolver, net_log)) {
   // We should always have a |transport_pool_| except in unit tests.
   if (transport_pool_)
     base_.AddLowerLayeredPool(transport_pool_);
 }
 
 SOCKSClientSocketPool::~SOCKSClientSocketPool() {
 }
 
 int SOCKSClientSocketPool::RequestSocket(
     const std::string& group_name, const void* socket_params,
@@ skipping 62 matching lines @@
                                                  false));
     dict->Set("nested_pools", list);
   }
   return dict;
 }
 
 base::TimeDelta SOCKSClientSocketPool::ConnectionTimeout() const {
   return base_.ConnectionTimeout();
 }
 
-ClientSocketPoolHistograms* SOCKSClientSocketPool::histograms() const {
-  return base_.histograms();
-};
-
 bool SOCKSClientSocketPool::IsStalled() const {
   return base_.IsStalled();
 }
 
 void SOCKSClientSocketPool::AddHigherLayeredPool(
     HigherLayeredPool* higher_pool) {
   base_.AddHigherLayeredPool(higher_pool);
 }
 
 void SOCKSClientSocketPool::RemoveHigherLayeredPool(
     HigherLayeredPool* higher_pool) {
   base_.RemoveHigherLayeredPool(higher_pool);
 }
 
 bool SOCKSClientSocketPool::CloseOneIdleConnection() {
   if (base_.CloseOneIdleSocket())
     return true;
   return base_.CloseOneIdleConnectionInHigherLayeredPool();
 }
 
 }  // namespace net