[Predator] Move time_util from common/ to lib/, split code review related part to code_review_util

appengine/findit/handlers/flake/list_flakes.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.
 
 from datetime import datetime
 from datetime import time
 from datetime import timedelta
 
-from common import time_util
 from common.base_handler import BaseHandler
 from common.base_handler import Permission
 
+from lib import time_util
 from model import result_status
 from model.flake.master_flake_analysis import MasterFlakeAnalysis
 
 
 def FilterMasterFlakeAnalysis(
     master_flake_analysis_query, master_name=None, builder_name=None,
     build_number=None, step_name=None, test_name=None, start_date=None,
     end_date=None, status_code=result_status.UNSPECIFIED):
   if master_name:
     master_flake_analysis_query = master_flake_analysis_query.filter(
@@ skipping 97 matching lines @@
 
     # TODO (stgao): use index instead of in-memory sort.
     # Index doesn't work for now, possibly due to legacy data.
     data['master_flake_analyses'].sort(
         key=lambda e: e['request_time'], reverse=True)
 
     return {
         'template': 'flake/dashboard.html',
         'data': data
     }