Always update cursor visibility

ash/display/cursor_window_controller.cc

 // 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.
 
 #include "ash/display/cursor_window_controller.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/display/mirror_window_controller.h"
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
@@ skipping 163 matching lines @@
   UpdateCursorImage();
   UpdateCursorVisibility();
 }
 
 void CursorWindowController::SetCursorSet(ui::CursorSetType cursor_set) {
   cursor_set_ = cursor_set;
   UpdateCursorImage();
 }
 
 void CursorWindowController::SetVisibility(bool visible) {
-  if (!cursor_window_)
-    return;
   visible_ = visible;
   UpdateCursorVisibility();
 }
 
 void CursorWindowController::SetContainer(aura::Window* container) {
   if (container_ == container)
     return;
   container_ = container;
   if (!container) {
     cursor_window_.reset();
@@ skipping 76 matching lines @@
   if (!cursor_window_)
     return;
   bool visible = (visible_ && cursor_type_ != ui::kCursorNone);
   if (visible)
     cursor_window_->Show();
   else
     cursor_window_->Hide();
 }
 
 }  // namespace ash