[Findit] On hover over, shows pass rate for a swarming rerun

appengine/findit/handlers/flake/test/check_flake_test.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.
 
 import webapp2
 
 from handlers.flake import check_flake
 from model.flake.master_flake_analysis import MasterFlakeAnalysis
 from model import analysis_status
 from model.analysis_status import STATUS_TO_DESCRIPTION
@@ skipping 56 matching lines @@
         'build_number': build_number,
         'step_name': step_name,
         'test_name': test_name,
         'format': 'json'})
 
     self.assertEquals(200, response.status_int)
     expected_check_flake_result ={
         'success_rates': [[int(build_number), success_rate]],
         'analysis_status': STATUS_TO_DESCRIPTION.get(
             master_flake_analysis.status),
+        'master_name': master_name,
+        'builder_name': builder_name,
+        'build_number': int(build_number),
+        'step_name': step_name,
+        'test_name': test_name,
         'suspected_flake_build_number': None
     }
     self.assertEqual(expected_check_flake_result, response.json_body)