window: Stop caching frame_bounds

That was only there to force updating MetaFrame's bounds
but that is something that is already updated in
MetaWindowX11.move_resize_internal. So just drop all of that

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3254>

src/compositor/meta-window-actor-x11.c

@@ -1088,22 +1088,18 @@ update_opaque_region (MetaWindowActorX11 *actor_x11)
 static void
 update_frame_bounds (MetaWindowActorX11 *actor_x11)
 {
+  MtkRegion *frame_bounds = NULL;
   MetaWindow *window =
     meta_window_actor_get_meta_window (META_WINDOW_ACTOR (actor_x11));
-  MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
+  MetaFrame *frame = meta_window_x11_get_frame (window);
-  MetaWindowX11Private *priv = meta_window_x11_get_private (window_x11);
 
   g_clear_pointer (&actor_x11->frame_bounds, mtk_region_unref);
 
- if (!priv->frame_bounds)
-    {
-      MetaFrame *frame = meta_window_x11_get_frame (window);
   if (frame)
-        priv->frame_bounds = meta_frame_get_frame_bounds (frame);
+    frame_bounds = meta_frame_get_frame_bounds (frame);
-    }
 
-  if (priv->frame_bounds)
+  if (frame_bounds)
-    actor_x11->frame_bounds = mtk_region_copy (priv->frame_bounds);
+    actor_x11->frame_bounds = mtk_region_copy (frame_bounds);
 }
 
 static void

src/core/window-private.h

@@ -76,7 +76,6 @@ typedef enum
 {
   META_MOVE_RESIZE_RESULT_MOVED               = 1 << 0,
   META_MOVE_RESIZE_RESULT_RESIZED             = 1 << 1,
-  META_MOVE_RESIZE_RESULT_FRAME_SHAPE_CHANGED = 1 << 2,
   META_MOVE_RESIZE_RESULT_STATE_CHANGED       = 1 << 3,
 } MetaMoveResizeResultFlags;
 

src/core/window.c

@@ -3994,17 +3994,6 @@ meta_window_move_resize_internal (MetaWindow          *window,
       meta_window_update_monitor (window, update_monitor_flags);
     }
 
-#ifdef HAVE_X11_CLIENT
-  if (window->client_type == META_WINDOW_CLIENT_TYPE_X11)
-    {
-      MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
-      MetaWindowX11Private *priv = meta_window_x11_get_private (window_x11);
-
-      if ((result & META_MOVE_RESIZE_RESULT_FRAME_SHAPE_CHANGED) && priv->frame_bounds)
-        g_clear_pointer (&priv->frame_bounds, mtk_region_unref);
-    }
-#endif
-
   meta_window_foreach_transient (window, maybe_move_attached_window, NULL);
 
   meta_stack_update_window_tile_matches (window->display->stack,

src/x11/meta-x11-frame.c

@@ -242,7 +242,6 @@ meta_window_destroy_frame (MetaWindow *window)
   meta_x11_display_unregister_x_window (x11_display, frame->xwindow);
 
   priv->frame = NULL;
-  g_clear_pointer (&priv->frame_bounds, mtk_region_unref);
   g_clear_pointer (&frame->opaque_region, mtk_region_unref);
 
   /* Move keybindings to window instead of frame */

src/x11/window-x11-private.h

@@ -102,9 +102,6 @@ struct _MetaWindowX11Private
   /* may be NULL! not all windows get decorated */
   MetaFrame *frame;
 
-  /* if non-NULL, the bounds of the window frame */
-  MtkRegion *frame_bounds;
-
   gboolean has_custom_frame_extents;
   MetaSyncCounter sync_counter;
 

src/x11/window-x11.c

@@ -1318,7 +1318,6 @@ meta_window_x11_move_resize_internal (MetaWindow                *window,
   gboolean need_move_frame = FALSE;
   gboolean need_resize_client = FALSE;
   gboolean need_resize_frame = FALSE;
-  gboolean frame_shape_changed = FALSE;
   gboolean configure_frame_first;
   gboolean is_configure_request;
   MetaWindowDrag *window_drag;
@@ -1515,7 +1514,7 @@ meta_window_x11_move_resize_internal (MetaWindow                *window,
     }
 
   if (configure_frame_first && priv->frame)
-    frame_shape_changed = meta_frame_sync_to_window (priv->frame, need_resize_frame);
+    meta_frame_sync_to_window (priv->frame, need_resize_frame);
 
   if (mask != 0)
     {
@@ -1526,7 +1525,7 @@ meta_window_x11_move_resize_internal (MetaWindow                *window,
     }
 
   if (!configure_frame_first && priv->frame)
-    frame_shape_changed = meta_frame_sync_to_window (priv->frame, need_resize_frame);
+    meta_frame_sync_to_window (priv->frame, need_resize_frame);
 
   mtk_x11_error_trap_pop (window->display->x11_display->xdisplay);
 
@@ -1541,8 +1540,6 @@ meta_window_x11_move_resize_internal (MetaWindow                *window,
   if (priv->showing_resize_popup)
     meta_window_refresh_resize_popup (window);
 
-  if (frame_shape_changed)
-    *result |= META_MOVE_RESIZE_RESULT_FRAME_SHAPE_CHANGED;
   if (need_move_client || need_move_frame)
     *result |= META_MOVE_RESIZE_RESULT_MOVED;
   if (need_resize_client || need_resize_frame)