In rebaseline-cl, also rebaseline tests with MISSING results.

third_party/WebKit/Tools/Scripts/webkitpy/common/net/layouttestresults.py

 # Copyright (c) 2010, Google Inc. All rights reserved.
 #
 # 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
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 54 matching lines @@
     def actual_results(self):
         return self._result_dict['actual']
 
     def expected_results(self):
         return self._result_dict['expected']
 
     def has_mismatch_result(self):
         last_retry_result = self.actual_results().split()[-1]
         return last_retry_result in ('TEXT', 'IMAGE', 'IMAGE+TEXT', 'AUDIO')
 
+    def is_missing_baseline(self):
+        return self._result_dict['actual'] == 'MISSING'
+
 
 # FIXME: This should be unified with ResultsSummary or other NRWT layout tests code
 # in the layout_tests package.
 # This doesn't belong in common.net, but we don't have a better place for it yet.
 class LayoutTestResults(object):
 
     @classmethod
     def results_from_string(cls, string, chromium_revision=None):
         """Creates a LayoutTestResults object from a test result JSON string.
 
@@ skipping 65 matching lines @@
         def add_if_passes(result):
             if result_filter(result):
                 results.append(result)
 
         LayoutTestResults._for_each_test(self._test_result_tree(), add_if_passes)
         return sorted(results, key=lambda r: r.test_name())
 
     def unexpected_mismatch_results(self):
         return self._filter_tests(lambda r: r.has_mismatch_result() and not r.did_run_as_expected())
 
+    def missing_results(self):
+        return self._filter_tests(lambda r: r.is_missing_baseline())
+
     def didnt_run_as_expected_results(self):
         return self._filter_tests(lambda r: not r.did_run_as_expected())