[Predator] Refactor ToPublishResult and fix keyerror 'found'

appengine/findit/crash/crash_pipeline.py

Index: appengine/findit/crash/crash_pipeline.py
diff --git a/appengine/findit/crash/crash_pipeline.py b/appengine/findit/crash/crash_pipeline.py
index 897f0d3b4ccc7b2bef3952f565979f09240b5f8c..fcf4334689a8d239c6a9a842ccde48ee44407eae 100644
--- a/appengine/findit/crash/crash_pipeline.py
+++ b/appengine/findit/crash/crash_pipeline.py
@@ -187,12 +187,13 @@ class PublishResultPipeline(CrashBasePipeline):
     (except for ``self``, naturally).
     """
     analysis = self._findit.GetAnalysis(self._crash_identifiers)
-    if analysis.failed:
+    if not analysis or not analysis.result or analysis.failed:
       logging.info('Can\'t publish result to %s because analysis failed:\n%s',
                    self.client_id, repr(self._crash_identifiers))
       return
 
-    result = analysis.ToPublishableResult(self._crash_identifiers)
+    result = self._findit.GetPublishableResult(self._crash_identifiers,
+                                               analysis)
     messages_data = [json.dumps(result, sort_keys=True)]
 
     # TODO(http://crbug.com/659354): remove Findit's dependency on CrashConfig.