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

sync/test/test_transaction_observer.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/test_transaction_observer.h"
-
-namespace syncer {
-
-namespace syncable {
-
-TestTransactionObserver::TestTransactionObserver()
-  : transactions_observed_(0) {
-}
-
-TestTransactionObserver::~TestTransactionObserver() {
-}
-
-int TestTransactionObserver::transactions_observed() {
-  return transactions_observed_;
-}
-
-void TestTransactionObserver::OnTransactionWrite(
-    const ImmutableWriteTransactionInfo& write_transaction_info,
-    ModelTypeSet models_with_changes) {
-  transactions_observed_++;
-}
-
-}  // namespace syncable
-
-}  // namespace syncer