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

sync/api/entity_change.cc

-// Copyright 2015 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/api/entity_change.h"
-
-namespace syncer_v2 {
-
-// static
-EntityChange EntityChange::CreateAdd(std::string client_tag,
-                                     EntityDataPtr data) {
-  return EntityChange(client_tag, ACTION_ADD, data);
-}
-
-// static
-EntityChange EntityChange::CreateUpdate(std::string client_tag,
-                                        EntityDataPtr data) {
-  return EntityChange(client_tag, ACTION_UPDATE, data);
-}
-
-// static
-EntityChange EntityChange::CreateDelete(std::string client_tag) {
-  return EntityChange(client_tag, ACTION_DELETE, EntityDataPtr());
-}
-
-EntityChange::EntityChange(std::string client_tag,
-                           ChangeType type,
-                           EntityDataPtr data)
-    : client_tag_(client_tag), type_(type), data_(data) {}
-
-EntityChange::EntityChange(const EntityChange& other) = default;
-
-EntityChange::~EntityChange() {}
-
-}  // namespace syncer_v2