Revert 198844 "Move sequenced_task_runner to base/task"

trunk/src/chrome/browser/policy/cloud/external_policy_data_updater.cc

 // Copyright (c) 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 "chrome/browser/policy/cloud/external_policy_data_updater.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/sequenced_task_runner.h"
 #include "base/sha1.h"
 #include "base/stl_util.h"
-#include "base/task/sequenced_task_runner.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/backoff_entry.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_status.h"
 
 namespace policy {
@@ skipping 398 matching lines @@
   DCHECK_EQ(job_map_[job->key()], job);
 
   --running_jobs_;
 
   // The job is not deleted when it fails because a retry attempt may have been
   // scheduled.
   StartNextJobs();
 }
 
 }  // namespace policy