Implement rudimentary touchscreen support in mus.

components/mus/mus_app.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 COMPONENTS_MUS_MUS_APP_H_
 #define COMPONENTS_MUS_MUS_APP_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "components/mus/input_devices/input_device_server.h"
 #include "components/mus/public/interfaces/clipboard.mojom.h"
 #include "components/mus/public/interfaces/display.mojom.h"
 #include "components/mus/public/interfaces/gpu.mojom.h"
 #include "components/mus/public/interfaces/gpu_service.mojom.h"
 #include "components/mus/public/interfaces/user_access_manager.mojom.h"
 #include "components/mus/public/interfaces/window_manager_window_tree_factory.mojom.h"
 #include "components/mus/public/interfaces/window_server_test.mojom.h"
 #include "components/mus/public/interfaces/window_tree.mojom.h"
 #include "components/mus/public/interfaces/window_tree_host.mojom.h"
 #include "components/mus/ws/platform_display_init_params.h"
+#include "components/mus/ws/touch_controller.h"
 #include "components/mus/ws/user_id.h"
 #include "components/mus/ws/window_server_delegate.h"
 #include "services/shell/public/cpp/application_runner.h"
 #include "services/shell/public/cpp/interface_factory.h"
 #include "services/shell/public/cpp/shell_client.h"
 #include "services/tracing/public/cpp/tracing_impl.h"
 
 #if defined(USE_OZONE)
 #include "ui/ozone/public/client_native_pixmap_factory.h"
 #endif
@@ skipping 118 matching lines @@
   // Provides input-device information via Mojo IPC.
   InputDeviceServer input_device_server_;
 
   bool test_config_;
   bool use_chrome_gpu_command_buffer_;
 #if defined(USE_OZONE)
   std::unique_ptr<ui::ClientNativePixmapFactory> client_native_pixmap_factory_;
 #endif
 
   std::unique_ptr<ws::PlatformScreen> platform_screen_;
+  std::unique_ptr<ws::TouchController> touch_controller_;
 
   base::WeakPtrFactory<MusApp> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MusApp);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_MUS_APP_H_