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

sync/syncable/syncable_proto_util.h

-// Copyright 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_SYNCABLE_PROTO_UTIL_H_
-#define SYNC_SYNCABLE_SYNCABLE_PROTO_UTIL_H_
-
-#include <string>
-
-#include "sync/base/sync_export.h"
-#include "sync/syncable/syncable_id.h"
-
-namespace sync_pb {
-class SyncEntity;
-}
-
-namespace syncer {
-
-// Converts from a specially formatted string field to a syncable::Id.  Used
-// when interpreting the fields of protocol buffers received from the server.
-syncable::Id SyncableIdFromProto(const std::string& proto_string);
-
-// Converts from a syncable::Id to a formatted std::string.  This is useful for
-// populating the fields of a protobuf which will be sent to the server.
-SYNC_EXPORT std::string SyncableIdToProto(const syncable::Id& syncable_id);
-
-// Helper function to determine if this SyncEntity's properties indicate that it
-// is a folder.
-bool IsFolder(const sync_pb::SyncEntity& entity);
-
-// Helper function to determine if this SyncEntity's properties indicate that it
-// is the root node.
-bool IsRoot(const sync_pb::SyncEntity& entity);
-
-}  // namespace syncer
-
-#endif  // SYNC_SYNCABLE_SYNCABLE_PROTO_UTIL_H_