Implement rudimentary touchscreen support in mus.

components/mus/ws/display.h

 // Copyright 2015 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_WS_DISPLAY_H_
 #define COMPONENTS_MUS_WS_DISPLAY_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 66 matching lines @@
 
   // Schedules a paint for the specified region in the coordinates of |window|.
   void SchedulePaint(const ServerWindow* window, const gfx::Rect& bounds);
 
   // Schedules destruction of surfaces in |window|. If a frame has been
   // scheduled but not drawn surface destruction is delayed until the frame is
   // drawn, otherwise destruction is immediate.
   void ScheduleSurfaceDestruction(ServerWindow* window);
 
   mojom::Rotation GetRotation() const;
+  gfx::Size GetSize() const;
+
+  // Returns the id for the corresponding id.
+  int64_t GetPlatformDisplayId() const;
 
   WindowServer* window_server() { return window_server_; }
 
   // Returns the root of the Display. The root's children are the roots
   // of the corresponding WindowManagers.
   ServerWindow* root_window() { return root_.get(); }
   const ServerWindow* root_window() const { return root_.get(); }
 
   ServerWindow* GetRootWithId(const WindowId& id);
 
@@ skipping 109 matching lines @@
 
   WindowManagerStateMap window_manager_state_map_;
 
   DISALLOW_COPY_AND_ASSIGN(Display);
 };
 
 }  // namespace ws
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_DISPLAY_H_