Automated IWYU fix for TaskRunner includes.

android_webview/browser/net/aw_url_request_context_getter.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 ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_
 #define ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
+#include "base/single_thread_task_runner.h"
 #include "components/prefs/pref_member.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/content_browser_client.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_job_factory.h"
 
 class PrefService;
 
 namespace net {
 class HostResolver;
@@ skipping 70 matching lines @@
   // SetHandlersAndInterceptors() and the first GetURLRequestContext() call.
   content::ProtocolHandlerMap protocol_handlers_;
   content::URLRequestInterceptorScopedVector request_interceptors_;
 
   DISALLOW_COPY_AND_ASSIGN(AwURLRequestContextGetter);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_