[Findit] A huge refactoring and some bug fixing.

appengine/findit/waterfall/identify_try_job_culprit_pipeline.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.
 
 from common.git_repository import GitRepository
 from common.http_client_appengine import HttpClientAppengine as HttpClient
-from model import wf_analysis_status
+from model import analysis_status
 from model.wf_try_job import WfTryJob
 from model.wf_try_job_data import WfTryJobData
 from pipeline_wrapper import BasePipeline
 from waterfall.try_job_type import TryJobType
 
 
 GIT_REPO = GitRepository(
     'https://chromium.googlesource.com/chromium/src.git', HttpClient())
 
 
@@ skipping 160 matching lines @@
       result_to_update = (
           try_job_result.compile_results if
           try_job_type == TryJobType.COMPILE else
           try_job_result.test_results)
       if (result_to_update and
           result_to_update[-1]['try_job_id'] == try_job_id):
         result_to_update[-1].update(result)
       else:  # pragma: no cover
         result_to_update.append(result)
 
-    try_job_result.status = wf_analysis_status.ANALYZED
+    try_job_result.status = analysis_status.COMPLETED
     try_job_result.put()
 
     return result.get('culprit') if result else None