FBTF: Remove unneeded headers from base/ (part 2)

net/tools/hresolv/hresolv.cc

 // Copyright (c) 2010 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.
 
 // hrseolv is a command line utility which runs the HostResolver in the
 // Chromium network stack.
 //
 // The user specifies the hosts to lookup and when to look them up.
 // The hosts must be specified in order.
 // The hosts can be contained in a file or on the command line. If no
@@ skipping 14 matching lines @@
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/condition_variable.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/thread.h"
 #include "base/time.h"
-#include "base/waitable_event.h"
 #include "net/base/address_list.h"
 #include "net/base/completion_callback.h"
 #include "net/base/host_resolver_impl.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/base/sys_addrinfo.h"
 
 struct FlagName {
   int flag;
   const char* name;
@@ skipping 406 matching lines @@
       base::TimeDelta::FromSeconds(0));
 
   scoped_refptr<net::HostResolver> host_resolver(
       new net::HostResolverImpl(NULL, cache, 100u));
   ResolverInvoker invoker(host_resolver.get());
   invoker.ResolveAll(hosts_and_times, options.async);
 
   CommandLine::Reset();
   return 0;
 }