viewport: Use gtk_widget_class_set_accessible_role()
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		@ -166,8 +166,6 @@ gtk_container_accessible_real_initialize (AtkObject *obj,
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  if (GTK_IS_TOOLBAR (data))
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    obj->role = ATK_ROLE_TOOL_BAR;
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  else if (GTK_IS_VIEWPORT (data))
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    obj->role = ATK_ROLE_VIEWPORT;
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  else
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    obj->role = ATK_ROLE_PANEL;
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}
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@ -139,6 +139,8 @@ gtk_viewport_class_init (GtkViewportClass *class)
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  widget_class->get_preferred_width = gtk_viewport_get_preferred_width;
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  widget_class->get_preferred_height = gtk_viewport_get_preferred_height;
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  gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_VIEWPORT);
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  container_class->add = gtk_viewport_add;
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  /* GtkScrollable implementation */
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