rebaseline-cl: Don't rebaseline expected-MISSING tests.

third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline_cl.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """A command to fetch new baselines from try jobs for a Rietveld issue.
 
 This command interacts with the Rietveld API to get information about try jobs
 with layout test results.
 """
 
@@ skipping 172 matching lines @@
         return {build: self._tests_to_rebaseline(build) for build in builds}
 
     def _try_bots(self):
         """Returns a collection of try bot builders to fetch results for."""
         return self._tool.builders.all_try_builder_names()
 
     def _tests_to_rebaseline(self, build):
         """Fetches a list of tests that should be rebaselined."""
         buildbot = self._tool.buildbot
         results_url = buildbot.results_url(build.builder_name, build.build_number)
+
         layout_test_results = buildbot.fetch_layout_test_results(results_url)
         if layout_test_results is None:
             _log.warning('Failed to request layout test results from "%s".', results_url)
             return []
-        failure_results = layout_test_results.unexpected_mismatch_results()
-        missing_results = layout_test_results.missing_results()
-        tests = sorted(r.test_name() for r in failure_results + missing_results)
+
+        unexpected_results = layout_test_results.didnt_run_as_expected_results()
+        tests = sorted(r.test_name() for r in unexpected_results
+                       if r.is_missing_baseline() or r.has_mismatch_result())
 
         new_failures = self._fetch_tests_with_new_failures(build)
         if new_failures is None:
             _log.warning('No retry summary available for build %s.', build)
         else:
             tests = [t for t in tests if t in new_failures]
         return tests
 
     def _fetch_tests_with_new_failures(self, build):
         """Fetches a list of tests that failed with a patch in a given try job but not without."""
@@ skipping 12 matching lines @@
     def _log_test_prefix_list(test_prefix_list):
         """Logs the tests to download new baselines for."""
         if not test_prefix_list:
             _log.info('No tests to rebaseline; exiting.')
             return
         _log.debug('Tests to rebaseline:')
         for test, builds in test_prefix_list.iteritems():
             _log.debug('  %s:', test)
             for build in sorted(builds):
                 _log.debug('    %s', build)