WPT importer: Log CL status and consider "lgtm" success.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_importer.py

 # Copyright 2014 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.
 
 """Fetches a copy of the latest state of a W3C test repository and commits.
 
 If this script is given the argument --auto-update, it will also:
  1. Upload a CL.
  2. Trigger try jobs and wait for them to complete.
  3. Make any changes that are required for new failing tests.
@@ skipping 336 matching lines @@
         self.git_cl.run(['set-commit', '--rietveld'])
         try_results = self.git_cl.wait_for_try_jobs(
             poll_delay_seconds=POLL_DELAY_SECONDS, timeout_seconds=TIMEOUT_SECONDS)
 
         if not try_results:
             _log.error('No try job results.')
             self.git_cl.run(['set-close'])
             return False
 
         # If the CQ passes, then the issue will be closed.
-        if not self.git_cl.is_closed():
+        status = self.git_cl.run(['status' '--field', 'status']).strip()
+        _log.info('CL status: "%s"', status)
+        if status not in ('lgtm', 'closed'):
             _log.error('CQ appears to have failed; aborting.')
             self.git_cl.run(['set-close'])
             return False
 
         _log.info('Update completed.')
         return True
 
     def _upload_cl(self):
         _log.info('Uploading change list.')
         directory_owners = self.get_directory_owners()
@@ skipping 90 matching lines @@
         """Returns a dict mapping source to dest name for layout tests that have been renamed."""
         out = self.check_run(['git', 'diff', 'origin/master', '-M100%', '--diff-filter=R', '--name-status'])
         renamed_tests = {}
         for line in out.splitlines():
             _, source_path, dest_path = line.split()
             source_test = self.finder.layout_test_name(source_path)
             dest_test = self.finder.layout_test_name(dest_path)
             if source_test and dest_test:
                 renamed_tests[source_test] = dest_test
         return renamed_tests