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

sync/test/null_transaction_observer.h

Index: sync/test/null_transaction_observer.h
diff --git a/sync/test/null_transaction_observer.h b/sync/test/null_transaction_observer.h
deleted file mode 100644
index 3b61112e02aedc143cdee4ab97fabc0ba54a23e1..0000000000000000000000000000000000000000
--- a/sync/test/null_transaction_observer.h
+++ /dev/null
@@ -1,22 +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.
-
-#ifndef SYNC_TEST_NULL_TRANSACTION_OBSERVER_H_
-#define SYNC_TEST_NULL_TRANSACTION_OBSERVER_H_
-
-#include "sync/internal_api/public/util/weak_handle.h"
-
-namespace syncer {
-namespace syncable {
-
-class TransactionObserver;
-
-// Returns an initialized weak handle to a transaction observer that
-// does nothing.
-WeakHandle<TransactionObserver> NullTransactionObserver();
-
-}  // namespace syncable
-}  // namespace syncer
-
-#endif  // SYNC_TEST_NULL_TRANSACTION_OBSERVER_H_