Remove WorkerPool dependency from URLRequestFileJob.

net/tools/get_server_time/get_server_time.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.
 
 // This is a small utility that snarfs the server time from the
 // response headers of an http/https HEAD request and compares it to
 // the local time.
 //
 // TODO(akalin): Also snarf the server time from the TLS handshake, if
 // any (http://crbug.com/146090).
 
 #include <cstdio>
 #include <cstdlib>
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/format_macros.h"
 #include "base/i18n/time_formatting.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/worker_pool.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_builder.h"
@@ skipping 98 matching lines @@
             << event_type << ": " << event_phase << params_str;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PrintingLogObserver);
 };
 
 // Builds a URLRequestContext assuming there's only a single loop.
 scoped_ptr<net::URLRequestContext>
 BuildURLRequestContext(net::NetLog* net_log) {
-  net::URLRequestContextBuilder builder;
+  net::URLRequestContextBuilder builder(
+      base::WorkerPool::GetTaskRunner(true /* task_is_slow */));
 #if defined(OS_LINUX)
   // On Linux, use a fixed ProxyConfigService, since the default one
   // depends on glib.
   //
   // TODO(akalin): Remove this once http://crbug.com/146421 is fixed.
   builder.set_proxy_config_service(
       new net::ProxyConfigServiceFixed(net::ProxyConfig()));
 #endif
   scoped_ptr<net::URLRequestContext> context(builder.Build());
   context->set_net_log(net_log);
@@ skipping 186 matching lines @@
                &skew, &skew_uncertainty);
 
   std::printf(
       "An estimate for the local clock skew is %.2f ms with "
       "uncertainty %.2f ms\n",
       skew.InMillisecondsF(),
       skew_uncertainty.InMillisecondsF());
 
   return EXIT_SUCCESS;
 }