Layout::delete in core/modules/layout/includes/layout.class.inc
Delete this layout.
Layout::getClone in core/modules/layout/includes/layout.class.inc
Clone a layout and return new Layout object.
Layout::__construct in core/modules/layout/includes/layout.class.inc
Constructor for a Layout class.
layout_delete_form in core/modules/layout/layout.admin.inc
Form callback; Delete a layout.
layout_delete_form_submit in core/modules/layout/layout.admin.inc
Submit handler for layout_delete_form(). Deletes a layout.
_layout_get_operations in core/modules/layout/layout.admin.inc
Given a layout, return a list of operations that can be performed on it.