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

sync/internal_api/public/base/attachment_id_proto.cc

-// Copyright 2014 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 "sync/internal_api/public/base/attachment_id_proto.h"
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <string>
-
-#include "base/guid.h"
-#include "base/logging.h"
-#include "base/strings/string_util.h"
-
-namespace syncer {
-
-sync_pb::AttachmentIdProto CreateAttachmentIdProto(size_t size,
-                                                   uint32_t crc32c) {
-  sync_pb::AttachmentIdProto proto;
-  std::string guid = base::ToLowerASCII(base::GenerateGUID());
-  DCHECK(!guid.empty());
-  // Requirements are that this id must be a unique RFC4122 UUID, formatted in
-  // lower case.
-  proto.set_unique_id(guid);
-  proto.set_size_bytes(size);
-  proto.set_crc32c(crc32c);
-  return proto;
-}
-
-sync_pb::AttachmentMetadata CreateAttachmentMetadata(
-    const google::protobuf::RepeatedPtrField<sync_pb::AttachmentIdProto>& ids) {
-  sync_pb::AttachmentMetadata result;
-  for (int i = 0; i < ids.size(); ++i) {
-    sync_pb::AttachmentMetadataRecord* record = result.add_record();
-    *record->mutable_id() = ids.Get(i);
-    record->set_is_on_server(true);
-  }
-  return result;
-}
-
-}  // namespace syncer