[Findit] Add fracas analysis result feedback page.

appengine/findit/crash/fracas.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.
 
 """Process crashes from Chrome crash server and find culprits for them."""
 
 import logging
 
 from common import chromium_deps
 from crash import detect_regression_range
@@ skipping 79 matching lines @@
 
   culprit_results = findit_for_crash.FindItForCrash(
       stacktrace, regression_deps_rolls, crash_deps)
 
   crash_stack = stacktrace.crash_stack
   suspected_project = ProjectClassifier().Classify(
       culprit_results, crash_stack)
   suspected_components = ComponentClassifier().Classify(
       culprit_results, crash_stack)
 
+  culprit_results_json = [result.ToDict() for result in culprit_results]
+
   return (
       {
           'found': (bool(suspected_project) or bool(suspected_components) or
-                    bool(culprit_results)),
+                    bool(culprit_results_json)),
           'regression_range': regression_versions,
           'suspected_project': suspected_project,
           'suspected_components': suspected_components,
-          'suspected_cls': culprit_results,
+          'suspected_cls': culprit_results_json,
       },
       {
-          'found_suspects': bool(culprit_results),
+          'found_suspects': bool(culprit_results_json),
           'has_regression_range': bool(regression_versions),
           'solution': 'core_algorithm',
       }
   )