Remove WorkerPool dependency from URLRequestFileJob.

sync/test/accounts_client/url_request_context_getter.cc

 // 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.
 
 #include "sync/test/accounts_client/url_request_context_getter.h"
 
 #include <string>
 
+#include "base/threading/worker_pool.h"
 #include "net/proxy/proxy_config_service.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_builder.h"
 
 namespace {
 
 // Config getter that always returns direct settings.
 class ProxyConfigServiceDirect : public net::ProxyConfigService {
  public:
   // Overridden from ProxyConfigService:
   virtual void AddObserver(Observer* observer) OVERRIDE {}
   virtual void RemoveObserver(Observer* observer) OVERRIDE {}
   virtual ConfigAvailability GetLatestProxyConfig(
       net::ProxyConfig* config) OVERRIDE {
     *config = net::ProxyConfig::CreateDirect();
     return CONFIG_VALID;
   }
 };
 
 }  // namespace
 
 URLRequestContextGetter::URLRequestContextGetter(
     scoped_refptr<base::SingleThreadTaskRunner> network_task_runner)
     : network_task_runner_(network_task_runner) {
 }
 
 net::URLRequestContext* URLRequestContextGetter::GetURLRequestContext() {
   CHECK(network_task_runner_->BelongsToCurrentThread());
   if (!url_request_context_) {
-    net::URLRequestContextBuilder builder;
+    net::URLRequestContextBuilder builder(
+        base::WorkerPool::GetTaskRunner(true /* task_is_slow */));
     // net::HttpServer fails to parse headers if user-agent header is blank.
     builder.set_user_agent("sync-test-accounts-client");
     builder.DisableHttpCache();
 #if defined(OS_LINUX) || defined(OS_ANDROID)
     builder.set_proxy_config_service(new ProxyConfigServiceDirect());
 #endif
     url_request_context_.reset(builder.Build());
   }
   return url_request_context_.get();
 }
 
 scoped_refptr<base::SingleThreadTaskRunner>
     URLRequestContextGetter::GetNetworkTaskRunner() const {
   return network_task_runner_;
 }
 
 URLRequestContextGetter::~URLRequestContextGetter() {}