Mus: Implement GpuMain mojo interface

services/ui/ws/window_server.h

 // Copyright 2014 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_SERVER_H_
 #define SERVICES_UI_WS_WINDOW_SERVER_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 359 matching lines @@
   base::Callback<void(ServerWindow*)> window_paint_callback_;
 
   UserActivityMonitorMap activity_monitor_map_;
 
   WindowManagerWindowTreeFactorySet window_manager_window_tree_factory_set_;
 
   mojo::Binding<cc::mojom::DisplayCompositorClient>
       display_compositor_client_binding_;
   // State for rendering into a Surface.
   cc::mojom::DisplayCompositorPtr display_compositor_;
-  cc::mojom::DisplayCompositorRequest display_compositor_request_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowServer);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_WINDOW_SERVER_H_