[Findit] Using master flake analysis key for updating triage results

appengine/findit/handlers/flake/check_flake.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 logging
 
 from google.appengine.api import users
 from google.appengine.ext import ndb
 
 from common import auth_util
@@ skipping 137 matching lines @@
               'template': 'error.html',
               'data': {
                   'error_message': 'Flake analysis was deleted unexpectedly!',
               },
               'return_code': 400
           }
 
     suspected_flake = _GetSuspectedFlakeAnalysisAndTriageResult(analysis)
 
     data = {
+        'key': analysis.key.urlsafe(),
         'master_name': analysis.master_name,
         'builder_name': analysis.builder_name,
         'build_number': analysis.build_number,
         'step_name': analysis.step_name,
         'test_name': analysis.test_name,
         'pass_rates': [],
         'analysis_status': analysis.status_description,
         'version_number': analysis.version_number,
         'suspected_flake': suspected_flake,
         'request_time': time_util.FormatDatetime(
@@ skipping 28 matching lines @@
             data_point.build_number, data_point.pass_rate, None])
 
     # Order by build number from earliest to latest.
     coordinates.sort(key=lambda x: x[0])
 
     data['pass_rates'] = coordinates
     return {
         'template': 'flake/result.html',
         'data': data
     }