Implement cursor changing on Mushrome

ui/display/manager/display_manager.cc

Index: ui/display/manager/display_manager.cc
diff --git a/ui/display/manager/display_manager.cc b/ui/display/manager/display_manager.cc
index 05825cacfd1db31d8e445ca7bf12abf56a68109b..51e555e6036f783c33dbd6ff19de5afc350901da 100644
--- a/ui/display/manager/display_manager.cc
+++ b/ui/display/manager/display_manager.cc
@@ -697,13 +697,13 @@ void DisplayManager::UpdateDisplaysWith(
   if (multi_display_mode_ != MIRRORING)
     multi_display_mode_ = current_default_multi_display_mode_;
 
-  CreateSoftwareMirroringDisplayInfo(&new_display_info_list);
-
   // Close the mirroring window if any here to avoid creating two compositor on
   // one display.
   if (delegate_)
     delegate_->CloseMirroringDisplayIfNotNecessary();
 
+  CreateSoftwareMirroringDisplayInfo(&new_display_info_list);
+
   Displays new_displays;
   Displays removed_displays;
   std::map<size_t, uint32_t> display_changes;