[Sync] Move 'sync' target to sync/

chrome/browser/sync/engine/passive_model_worker.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/engine/passive_model_worker.h"
-
-#include "base/message_loop.h"
-
-namespace browser_sync {
-
-PassiveModelWorker::PassiveModelWorker(const MessageLoop* sync_loop)
-    : sync_loop_(sync_loop) {}
-
-PassiveModelWorker::~PassiveModelWorker() {
-}
-
-SyncerError PassiveModelWorker::DoWorkAndWaitUntilDone(
-    const WorkCallback& work) {
-  DCHECK_EQ(MessageLoop::current(), sync_loop_);
-  // Simply do the work on the current thread.
-  return work.Run();
-}
-
-ModelSafeGroup PassiveModelWorker::GetModelSafeGroup() {
-  return GROUP_PASSIVE;
-}
-
-}  // namespace browser_sync