Take a value and apply token replacement logic to it.
public function tokenizeValue($value, $row_index) {
  if (strpos($value, '[') !== FALSE || strpos($value, '!') !== FALSE || strpos($value, '%') !== FALSE) {
    $fake_item = array(
      'alter_text' => TRUE,
      'text' => $value,
    );
    // Row tokens might be empty, for example for node row style.
    $tokens = isset($this->row_tokens[$row_index]) ? $this->row_tokens[$row_index] : array();
    if (!empty($this->view->build_info['substitutions'])) {
      $tokens += $this->view->build_info['substitutions'];
    }
    if ($tokens) {
      $value = strtr($value, $tokens);
    }
  }
  return $value;
}