[Sync] Make generic non-frontend thread datatype controller.

chrome/browser/sync/glue/non_frontend_data_type_controller_mock.cc

Index: chrome/browser/sync/glue/non_frontend_data_type_controller_mock.cc
diff --git a/chrome/browser/sync/glue/non_frontend_data_type_controller_mock.cc b/chrome/browser/sync/glue/non_frontend_data_type_controller_mock.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dfde595121edd58e81c26cb35121a075a160d8bc
--- /dev/null
+++ b/chrome/browser/sync/glue/non_frontend_data_type_controller_mock.cc
@@ -0,0 +1,13 @@
+// Copyright (c) 2011 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/glue/non_frontend_data_type_controller_mock.h"
+
+namespace browser_sync {
+
+NonFrontendDataTypeControllerMock::NonFrontendDataTypeControllerMock() {}
+
+NonFrontendDataTypeControllerMock::~NonFrontendDataTypeControllerMock() {}
+
+}  // namespace browser_sync