[Findit] Set culprit and infra failure explicitly.

scripts/slave/recipes/findit/chromium/compile.py

 # Copyright 2015 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.
 
 import json
 
 from recipe_engine.config import List
 from recipe_engine.config import Single
 from recipe_engine.recipe_api import Property
 
@@ skipping 216 matching lines @@
           suspected_revision = revision
           found = True
           break
 
       if not found and suspected_revision is not None:
         # If all revisions in the current range passed, and the first revision
         # of previous range failed, the culprit is found too.
         found = True
   except api.step.InfraFailure:
     compile_results[revision_being_checked] = CompileResult.INFRA_FAILED
+    report['metadata']['infra_failure'] = True
     raise
   finally:
+    if found:
+      report['culprit'] = suspected_revision
+
     # Report the result.
     step_result = api.python.succeeding_step(
         'report', [json.dumps(report, indent=2)], as_log='report')
 
     if found:
       step_result.presentation.step_text = (
           '<br/>Culprit: <a href="https://crrev.com/%s">%s</a>' % (
               suspected_revision, suspected_revision))
 
     # Set the report as a build property too, so that it will be reported back
@@ skipping 277 matching lines @@
           'git commits in range',
           api.raw_io.stream_output(
               '\n'.join('r%d' % i for i in reversed(range(2, 6))))) +
       api.override_step_data('test r2.check_targets',
                              api.json.output({
                                  'found': ['target_name'],
                                  'not_found': [],
                              })) +
       api.override_step_data('test r2.compile', retcode=1)
   )