Provide hooks to override title

Title hooks overriding default behavior (segment and page) would be very useful sometimes.
Here is a patch to provide segment hooks and code snippet to get titles of pages, which are created or overrided by Views.
E.g. title depends on contextual filter.

function MYMODULE_easy_breadcrumb_segment_title($normal_path, $valid_path, $segment_text) {
  $overrides = array();
  if (!$valid_path) return $overrides;
  $router_item = menu_get_item($normal_path);
  if ($router_item && $router_item['page_callback'] == 'views_page') {
    $view_name = array_shift($router_item['page_arguments']);
    $display = array_shift($router_item['page_arguments']); 
    $view = views_get_view($view_name);
    if ($view) {
      $view->set_display($display);
      $view->pre_execute($router_item['page_arguments']);
      $view->init_query();
      $view->init_handlers();
      $view->_build_arguments();
      $title = $view->get_title();
    }
  }
  if (isset($title) && $title) $overrides[$normal_path] = $title;
  return $overrides;
}

function MYMODULE_easy_breadcrumb_segment_title_alter(&$title, $context) {
  // another hook for example
  // $title already contains the right value
}