Revert 198844 "Move sequenced_task_runner to base/task"

trunk/src/chrome/browser/sync_file_system/drive_metadata_store.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 "chrome/browser/sync_file_system/drive_metadata_store.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/message_loop_proxy.h"
+#include "base/sequenced_task_runner.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
 #include "base/strings/string_number_conversions.h"
-#include "base/task/sequenced_task_runner.h"
 #include "base/task_runner_util.h"
 #include "chrome/browser/sync_file_system/drive_file_sync_service.h"
 #include "chrome/browser/sync_file_system/sync_file_system.pb.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/leveldatabase/src/include/leveldb/db.h"
 #include "third_party/leveldatabase/src/include/leveldb/write_batch.h"
 #include "webkit/fileapi/file_system_url.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/syncable/syncable_file_system_util.h"
 
@@ skipping 1150 matching lines @@
     DCHECK(origin.is_valid());
     bool result = disabled_origins->insert(
         std::make_pair(origin, itr->value().ToString())).second;
     DCHECK(result);
   }
 
   return SYNC_STATUS_OK;
 }
 
 }  // namespace sync_file_system