Implement a MoveCursorToScreenLocation for just the window manager.

services/ui/ws/window_manager_state.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_WS_WINDOW_MANAGER_STATE_H_
 #define SERVICES_UI_WS_WINDOW_MANAGER_STATE_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 50 matching lines @@
 
   bool SetCapture(ServerWindow* window, ClientSpecificId client_id);
   ServerWindow* capture_window() { return event_dispatcher_.capture_window(); }
   const ServerWindow* capture_window() const {
     return event_dispatcher_.capture_window();
   }
 
   void ReleaseCaptureBlockedByModalWindow(const ServerWindow* modal_window);
   void ReleaseCaptureBlockedByAnyModalWindow();
 
+  // Sets the location of the cursor to a location on display |display_id|.
+  void SetCursorLocation(const gfx::Point& display_pixels, int64_t display_id);
+
   void SetDragDropSourceWindow(
       DragSource* drag_source,
       ServerWindow* window,
       DragTargetConnection* source_connection,
       const std::unordered_map<std::string, std::vector<uint8_t>>& drag_data,
       uint32_t drag_operation);
   void CancelDragDrop();
   void EndDragDrop();
 
   void AddSystemModalWindow(ServerWindow* window);
@@ skipping 233 matching lines @@
   // All state regarding what the current cursor is.
   CursorState cursor_state_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerState);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_WINDOW_MANAGER_STATE_H_