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

sync/test/engine/fake_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 "sync/test/engine/fake_model_worker.h"
-
-namespace syncer {
-
-FakeModelWorker::FakeModelWorker(ModelSafeGroup group)
-    : ModelSafeWorker(NULL),
-      group_(group) {}
-
-FakeModelWorker::~FakeModelWorker() {
-  // We may need to relax this is FakeModelWorker is used in a
-  // multi-threaded test; since ModelSafeWorkers are
-  // RefCountedThreadSafe, they could theoretically be destroyed from
-  // a different thread.
-  DCHECK(CalledOnValidThread());
-}
-
-void FakeModelWorker::RegisterForLoopDestruction() {
-  NOTREACHED();
-}
-
-SyncerError FakeModelWorker::DoWorkAndWaitUntilDoneImpl(
-    const WorkCallback& work) {
-  DCHECK(CalledOnValidThread());
-  // Simply do the work on the current thread.
-  return work.Run();
-}
-
-ModelSafeGroup FakeModelWorker::GetModelSafeGroup() {
-  DCHECK(CalledOnValidThread());
-  return group_;
-}
-
-}  // namespace syncer