[Refactor] Rename DnsResolutionObserver --> HostResolver::Observer....

net/base/tcp_client_socket_pool.cc

 // Copyright (c) 2006-2008 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/base/tcp_client_socket_pool.h"
 
 #include "base/compiler_specific.h"
 #include "base/field_trial.h"
 #include "base/message_loop.h"
 #include "base/time.h"
 #include "base/stl_util-inl.h"
 #include "net/base/client_socket_factory.h"
 #include "net/base/client_socket_handle.h"
-#include "net/base/dns_resolution_observer.h"
 #include "net/base/net_errors.h"
 #include "net/base/tcp_client_socket.h"
 
 using base::TimeDelta;
 
 namespace {
 
 // The timeout value, in seconds, used to clean up idle sockets that can't be
 // reused.
 //
@@ skipping 389 matching lines @@
 
   // Delete group if no longer needed.
   if (group.active_socket_count == 0 && group.idle_sockets.empty()) {
     CHECK(group.pending_requests.empty());
     CHECK(group.connecting_requests.empty());
     group_map_.erase(i);
   }
 }
 
 }  // namespace net