Remove unused HostResolver::Observer.

net/socket/socks_client_socket_pool.cc

 // Copyright (c) 2011 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/time.h"
 #include "base/values.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_errors.h"
 #include "net/socket/client_socket_factory.h"
 #include "net/socket/client_socket_handle.h"
 #include "net/socket/client_socket_pool_base.h"
 #include "net/socket/socks5_client_socket.h"
 #include "net/socket/socks_client_socket.h"
 #include "net/socket/transport_client_socket_pool.h"
 
 namespace net {
 
+// TODO(szym): remove unneeded referrer
 SOCKSSocketParams::SOCKSSocketParams(
     const scoped_refptr<TransportSocketParams>& proxy_server,
     bool socks_v5,
     const HostPortPair& host_port_pair,
     RequestPriority priority,
     const GURL& referrer)
     : transport_params_(proxy_server),
       destination_(host_port_pair),
       socks_v5_(socks_v5) {
   if (transport_params_)
     ignore_limits_ = transport_params_->ignore_limits();
   else
     ignore_limits_ = false;
-  // The referrer is used by the DNS prefetch system to correlate resolutions
-  // with the page that triggered them. It doesn't impact the actual addresses
-  // that we resolve to.
-  destination_.set_referrer(referrer);
   destination_.set_priority(priority);
 }
 
 SOCKSSocketParams::~SOCKSSocketParams() {}
 
 // SOCKSConnectJobs will time out after this many seconds.  Note this is on
 // top of the timeout for the transport socket.
 static const int kSOCKSConnectJobTimeoutInSeconds = 30;
 
 SOCKSConnectJob::SOCKSConnectJob(
@@ skipping 234 matching lines @@
 
 base::TimeDelta SOCKSClientSocketPool::ConnectionTimeout() const {
   return base_.ConnectionTimeout();
 }
 
 ClientSocketPoolHistograms* SOCKSClientSocketPool::histograms() const {
   return base_.histograms();
 };
 
 }  // namespace net