mus: Implement ScreenMus::GetCursorScreenPoint().

components/mus/ws/window_tree.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_WS_WINDOW_TREE_H_
 #define COMPONENTS_MUS_WS_WINDOW_TREE_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 220 matching lines @@
     EMBED,
   };
 
   DisplayManager* display_manager();
   const DisplayManager* display_manager() const;
 
   // Used when this tree is the window manager.
   Display* GetDisplayForWindowManager();
   WindowManagerState* GetWindowManagerStateForWindowManager();
 
+  // Gets the current |user_id_|'s window manager state.
+  WindowManagerState* GetWindowManagerStateForUser();
+
   bool ShouldRouteToWindowManager(const ServerWindow* window) const;
 
   ClientWindowId ClientWindowIdForWindow(const ServerWindow* window) const;
 
   // Returns true if |id| is a valid WindowId for a new window.
   bool IsValidIdForNewWindow(const ClientWindowId& id) const;
 
   WindowId GenerateNewWindowId();
 
   // These functions return true if the corresponding mojom function is allowed
@@ skipping 116 matching lines @@
                         mojo::TextInputStatePtr state) override;
   void OnWindowInputEventAck(uint32_t event_id,
                              mojom::EventResult result) override;
   void SetClientArea(
       Id transport_window_id,
       mojo::InsetsPtr insets,
       mojo::Array<mojo::RectPtr> transport_additional_client_areas) override;
   void GetWindowManagerClient(
       mojo::AssociatedInterfaceRequest<mojom::WindowManagerClient> internal)
       override;
+  void GetCursorLocationMemory(const GetCursorLocationMemoryCallback& callback)
+      override;
 
   // mojom::WindowManagerClient:
   void AddAccelerator(uint32_t id,
                       mojom::EventMatcherPtr event_matcher,
                       const AddAcceleratorCallback& callback) override;
   void RemoveAccelerator(uint32_t id) override;
   void AddActivationParent(Id transport_window_id) override;
   void RemoveActivationParent(Id transport_window_id) override;
   void ActivateNextWindow() override;
   void SetUnderlaySurfaceOffsetAndExtendedHitArea(
@@ skipping 53 matching lines @@
 
   scoped_ptr<WaitingForTopLevelWindowInfo> waiting_for_top_level_window_info_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTree);
 };
 
 }  // namespace ws
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_WINDOW_TREE_H_