[Sync] Move //sync to //components/sync.

sync/syncable/scoped_kernel_lock.h

-// 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.
-
-#ifndef SYNC_SYNCABLE_SCOPED_KERNEL_LOCK_H_
-#define SYNC_SYNCABLE_SCOPED_KERNEL_LOCK_H_
-
-#include "base/macros.h"
-#include "base/synchronization/lock.h"
-
-namespace syncer {
-namespace syncable {
-
-class Directory;
-
-class ScopedKernelLock {
- public:
-  explicit ScopedKernelLock(const Directory* dir);
-  ~ScopedKernelLock();
-
-  base::AutoLock scoped_lock_;
-  const Directory* const dir_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ScopedKernelLock);
-};
-
-}  // namespace syncable
-}  // namespace syncer
-
-#endif  // SYNC_SYNCABLE_SCOPED_KERNEL_LOCK_H_