not a slot

GUI/View/Mask/MaskGraphicsView.h

@@ -29,11 +29,11 @@ public:
     QSize sizeHint() const override { return QSize(512, 512); }
     QSize minimumSizeHint() const override { return QSize(128, 128); }
 
+    void updateSize(const QSize& newSize);
+
 public slots:
     void onResetViewRequest();
 
-    void updateSize(const QSize& newSize);
-
 signals:
     void changeActivityRequest(MaskEditorFlags::Activity);
     void deleteSelectedRequest();