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

sync/test/null_transaction_observer.cc

Index: sync/test/null_transaction_observer.cc
diff --git a/sync/test/null_transaction_observer.cc b/sync/test/null_transaction_observer.cc
deleted file mode 100644
index abd99b0154ba7b8f0f445961e88edb3eb50a307d..0000000000000000000000000000000000000000
--- a/sync/test/null_transaction_observer.cc
+++ /dev/null
@@ -1,17 +0,0 @@
-// 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/null_transaction_observer.h"
-
-#include "base/memory/weak_ptr.h"
-
-namespace syncer {
-namespace syncable {
-
-WeakHandle<TransactionObserver> NullTransactionObserver() {
-  return MakeWeakHandle(base::WeakPtr<TransactionObserver>());
-}
-
-}  // namespace syncable
-}  // namespace syncer