Remove more instances of BrowserThread::FILE.

content/shell/browser/layout_test/layout_test_url_request_context_getter.cc

 // Copyright 2013 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 "content/shell/browser/layout_test/layout_test_url_request_context_getter.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/shell/browser/shell_network_delegate.h"
 #include "net/proxy/proxy_service.h"
 
 namespace content {
 
 LayoutTestURLRequestContextGetter::LayoutTestURLRequestContextGetter(
     bool ignore_certificate_errors,
     const base::FilePath& base_path,
     scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
-    scoped_refptr<base::SingleThreadTaskRunner> file_task_runner,
     ProtocolHandlerMap* protocol_handlers,
     URLRequestInterceptorScopedVector request_interceptors,
     net::NetLog* net_log)
     : ShellURLRequestContextGetter(ignore_certificate_errors,
                                    base_path,
                                    std::move(io_task_runner),
-                                   std::move(file_task_runner),
                                    protocol_handlers,
                                    std::move(request_interceptors),
                                    net_log) {
   // Must first be created on the UI thread.
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 }
 
 LayoutTestURLRequestContextGetter::~LayoutTestURLRequestContextGetter() {
 }
 
 std::unique_ptr<net::NetworkDelegate>
 LayoutTestURLRequestContextGetter::CreateNetworkDelegate() {
   ShellNetworkDelegate::SetBlockThirdPartyCookies(true);
   return base::WrapUnique(new ShellNetworkDelegate);
 }
 
 std::unique_ptr<net::ProxyConfigService>
 LayoutTestURLRequestContextGetter::GetProxyConfigService() {
   return nullptr;
 }
 
 std::unique_ptr<net::ProxyService>
 LayoutTestURLRequestContextGetter::GetProxyService() {
   return net::ProxyService::CreateDirect();
 }
 
 }  // namespace content