Automated IWYU fix for TaskRunner includes.

chrome/service/service_process.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 CHROME_SERVICE_SERVICE_PROCESS_H_
 #define CHROME_SERVICE_SERVICE_PROCESS_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 #include "chrome/service/cloud_print/cloud_print_proxy.h"
 #include "chrome/service/service_ipc_server.h"
 #include "mojo/edk/embedder/named_platform_handle.h"
 #include "mojo/edk/embedder/scoped_platform_handle.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 
 class ServiceProcessPrefs;
 class ServiceURLRequestContextGetter;
 class ServiceProcessState;
@@ skipping 123 matching lines @@
 #elif defined(OS_WIN)
   mojo::edk::NamedPlatformHandle server_handle_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ServiceProcess);
 };
 
 extern ServiceProcess* g_service_process;
 
 #endif  // CHROME_SERVICE_SERVICE_PROCESS_H_