Splitting the Mus demo code out of a service.

services/ui/demo/mus_demo_service.h

+// 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.
+
+#ifndef SERVICES_UI_DEMO_MUS_DEMO_SERVICE_H_
+#define SERVICES_UI_DEMO_MUS_DEMO_SERVICE_H_
+
+#include "base/macros.h"
+#include "services/service_manager/public/cpp/service.h"
+
+namespace ui {
+
+namespace demo {
+
+class MusDemo;
+
+// A simple MUS Demo mojo app. See the MusDemo class for more details.
+class MusDemoService : public service_manager::Service {
+ public:
+  MusDemoService();
+  ~MusDemoService() override;
+
+ private:
+  // shell::Service:
+  void OnStart(const service_manager::Identity& identity) override;
+  bool OnConnect(const service_manager::Identity& remote_identity,
+                 service_manager::InterfaceRegistry* registry) override;
+
+  std::unique_ptr<MusDemo> mus_demo_;
+
+  DISALLOW_COPY_AND_ASSIGN(MusDemoService);
+};
+
+}  // namespace demo
+}  // namespace ui
+
+#endif  // SERVICES_UI_DEMO_MUS_DEMO_SERVICE_H_