c++ / mojo changes for 'external window mode'

services/ui/ws/window_tree_host_factory_registrar.h

+// Copyright 2017 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_WS_WINDOW_TREE_HOST_FACTORY_REGISTRAR_H_
+#define SERVICES_UI_WS_WINDOW_TREE_HOST_FACTORY_REGISTRAR_H_
+
+#include "services/ui/public/interfaces/window_tree_host.mojom.h"
+#include "services/ui/ws/user_id.h"
+
+namespace ui {
+namespace ws {
+
+class WindowServer;
+
+class WindowTreeHostFactoryRegistrar
+    : public mojom::WindowTreeHostFactoryRegistrar {
+ public:
+  WindowTreeHostFactoryRegistrar(WindowServer* window_server,
+                                 const UserId& user_id);
+  ~WindowTreeHostFactoryRegistrar() override;
+
+  const UserId& user_id() const { return user_id_; }
+
+ private:
+  void Register(mojom::WindowTreeHostFactoryRequest,
+                mojom::WindowTreeRequest tree_request,
+                mojom::WindowTreeClientPtr tree_client) override;
+
+  WindowServer* window_server_;
+  const UserId user_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(WindowTreeHostFactoryRegistrar);
+};
+
+}  // namespace ws
+}  // namespace ui
+
+#endif  // SERVICES_UI_WS_WINDOW_TREE_HOST_FACTORY_REGISTRAR_H_