Restart servers before retrying layout tests

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 # Copyright (C) 2010 Gabor Rapcsanyi (rgabor@inf.u-szeged.hu), University of Szeged
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 155 matching lines @@
 
             tests_to_retry = self._tests_to_retry(initial_results)
             all_retry_results = []
             if should_retry_failures and tests_to_retry:
                 enabled_pixel_tests_in_retry = self._force_pixel_tests_if_needed()
 
                 for retry_attempt in xrange(1, self._options.num_retries + 1):
                     if not tests_to_retry:
                         break
 
+                    self._stop_servers()
+                    self._start_servers(tests_to_retry)
+
                     _log.info('')
                     _log.info('Retrying %s, attempt %d of %d...',
                               grammar.pluralize('unexpected failure', len(tests_to_retry)),
                               retry_attempt, self._options.num_retries)
 
                     retry_results = self._run_tests(tests_to_retry,
                                                     tests_to_skip=set(),
                                                     repeat_each=1,
                                                     iterations=1,
                                                     num_workers=num_workers,
@@ skipping 369 matching lines @@
 
         stats = {}
         for result in initial_results.results_by_name.values():
             if result.type != test_expectations.SKIP:
                 stats[result.test_name] = {'results': (_worker_number(result.worker_name), result.test_number, result.pid, int(
                     result.test_run_time * 1000), int(result.total_run_time * 1000))}
         stats_trie = {}
         for name, value in stats.iteritems():
             json_results_generator.add_path_to_trie(name, value, stats_trie)
         return stats_trie