ash::CursorWindowController: handle ui::kCursorNone

ash/display/cursor_window_controller.h

Index: ash/display/cursor_window_controller.h
diff --git a/ash/display/cursor_window_controller.h b/ash/display/cursor_window_controller.h
index 6e55c2f9b7235bdf850cc5c0b2ebcef0c1777eb3..8af6906eec96d2e3a785b244ed35c4b42fc9ef95 100644
--- a/ash/display/cursor_window_controller.h
+++ b/ash/display/cursor_window_controller.h
@@ -60,6 +60,9 @@ class ASH_EXPORT CursorWindowController {
   // Updates cursor image based on current cursor state.
   void UpdateCursorImage();
 
+  // Hides/shows cursor window based on current cursor state.
+  void UpdateCursorVisibility();
+
   bool is_cursor_compositing_enabled_;
   aura::Window* container_;
 
@@ -69,6 +72,9 @@ class ASH_EXPORT CursorWindowController {
   // The native_type of the cursor, see definitions in cursor.h
   int cursor_type_;
 
+  // The last requested cursor visibility.
+  bool visible_;
+
   ui::CursorSetType cursor_set_;
   gfx::Display::Rotation cursor_rotation_;
   gfx::Point hot_point_;