Remove unused include in sequenced_worker_pool.h

remoting/host/native_messaging/log_message_handler.cc

 // Copyright 2015 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 "remoting/host/native_messaging/log_message_handler.h"
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_util.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/tracked_objects.h"
 
 namespace remoting {
 
 namespace {
 // Log message handler registration and deregistration is not thread-safe.
 // This lock must be held in order to set or restore a log message handler,
@@ skipping 104 matching lines @@
   dictionary->SetString("message", message);
   dictionary->SetString("file", file);
   dictionary->SetInteger("line", line);
 
   delegate_.Run(std::move(dictionary));
 
   suppress_logging_ = false;
 }
 
 }  // namespace remoting