e name used by the original template. i.e, if the original template was <em>views-view-list.tpl.php</em> then that preprocess function would be named <em>template_preprocess_views_view_list</em>.

  The third one is your module's preprocess function, if it needs one. In general, you probably will not need one, and you should only attempt to use one if you are reasonably familiar with the concept of preprocess functions and Drupal's theme system in general. See Drupal's theme documentation for more informati