/**
  * Returns browser configuration instance.
  *
  * @param array           $config    Browser.
  * @param BrowserTestCase $test_case Test case.
  *
  * @return BrowserConfiguration
  */
 public function createBrowserConfiguration(array $config, BrowserTestCase $test_case)
 {
     $aliases = $test_case->getBrowserAliases();
     $config = BrowserConfiguration::resolveAliases($config, $aliases);
     $type = isset($config['type']) ? $config['type'] : 'default';
     return $this->create($type)->setAliases($aliases)->setup($config);
 }