[mutter] backend: move the cursor render update on screen changes here

[Marco Trevisan <marcotrevi src gnome org>]

commit a8c80cceceab52658f87af6f263776b1e8e943f6
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Fri Oct 13 00:12:50 2017 -0500

    backend: move the cursor render update on screen changes here
    
    https://bugzilla.gnome.org/show_bug.cgi?id=788860

 src/backends/meta-backend.c |    2 ++
 src/core/screen.c           |    7 -------
 2 files changed, 2 insertions(+), 7 deletions(-)
---
diff --git a/src/backends/meta-backend.c b/src/backends/meta-backend.c
index edabaa4..9083a43 100644
--- a/src/backends/meta-backend.c
+++ b/src/backends/meta-backend.c
@@ -196,6 +196,8 @@ meta_backend_monitors_changed (MetaBackend *backend)
           priv->is_pointer_position_initialized = TRUE;
         }
     }
+
+  meta_cursor_renderer_force_update (priv->cursor_renderer);
 }
 
 void
diff --git a/src/core/screen.c b/src/core/screen.c
index be43943..c14bba0 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -2273,9 +2273,6 @@ static void
 on_monitors_changed_internal (MetaMonitorManager *manager,
                               MetaScreen         *screen)
 {
-  MetaBackend *backend;
-  MetaCursorRenderer *cursor_renderer;
-
   meta_monitor_manager_get_screen_size (manager,
                                         &screen->rect.width,
                                         &screen->rect.height);
@@ -2306,10 +2303,6 @@ on_monitors_changed_internal (MetaMonitorManager *manager,
   meta_screen_foreach_window (screen, META_LIST_DEFAULT, meta_screen_resize_func, 0);
 
   meta_screen_queue_check_fullscreen (screen);
-
-  backend = meta_get_backend ();
-  cursor_renderer = meta_backend_get_cursor_renderer (backend);
-  meta_cursor_renderer_force_update (cursor_renderer);
 }
 
 static void