Motown: Factor FactoryServiceBase out of MediaFactoryService

services/util/cpp/factory_service_base.cc

+// Copyright 2016 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 "base/logging.h"
+#include "services/util/cpp/factory_service_base.h"
+
+namespace mojo {
+namespace util {
+
+FactoryServiceBase::ProductBase::ProductBase(FactoryServiceBase* owner)
+    : owner_(owner) {
+  DCHECK(owner_);
+}
+
+FactoryServiceBase::ProductBase::~ProductBase() {}
+
+FactoryServiceBase::FactoryServiceBase() {}
+
+FactoryServiceBase::~FactoryServiceBase() {}
+
+void FactoryServiceBase::Initialize(ApplicationImpl* app) {
+  app_ = app;
+}
+
+}  // namespace util
+}  // namespace mojo