Cleanup: Remove unneeded scoped_ptr.h includes from net.

net/base/host_resolver.h

 // 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.
 
 #ifndef NET_BASE_HOST_RESOLVER_H_
 #define NET_BASE_HOST_RESOLVER_H_
 #pragma once
 
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "net/base/address_family.h"
 #include "net/base/completion_callback.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/net_export.h"
 #include "net/base/net_util.h"
 #include "net/base/request_priority.h"
 
 namespace base {
 class Value;
 }
@@ skipping 178 matching lines @@
 // As above, but the HostResolver will use the asynchronous DNS client in
 // DnsTransaction, which will be configured using DnsConfigService to match
 // the system DNS settings. If the client fails, the resolver falls back to
 // the global HostResolverProc.
 NET_EXPORT HostResolver* CreateAsyncHostResolver(size_t max_concurrent_resolves,
                                                  size_t max_retry_attempts,
                                                  NetLog* net_log);
 }  // namespace net
 
 #endif  // NET_BASE_HOST_RESOLVER_H_