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

appengine/findit/findit_api.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.
 
 """This module is to provide Findit service APIs through Cloud Endpoints:
 
 Current APIs include:
 1. Analysis of compile/test failures in Chromium waterfalls.
    Analyzes failures and detects suspected CLs.
 2. Analysis of flakes on Commit Queue.
 """
 
 from collections import defaultdict
 import json
 import logging
 import pickle
 
 import endpoints
 from google.appengine.api import taskqueue
 from protorpc import messages
 from protorpc import remote
 
 from common import appengine_util
 from common import auth_util
 from common import constants
-from common import time_util
 from common.waterfall import failure_type
+from lib import time_util
 from model import analysis_approach_type
 from model import analysis_status
 from model.flake.flake_analysis_request import FlakeAnalysisRequest
 from model.suspected_cl_confidence import SuspectedCLConfidence
 from model.wf_analysis import WfAnalysis
 from model.wf_suspected_cl import WfSuspectedCL
 from model.wf_swarming_task import WfSwarmingTask
 from model.wf_try_job import WfTryJob
 from waterfall import build_util
 from waterfall import buildbot
@@ skipping 468 matching lines @@
 
     try:
       _AsyncProcessFlakeReport(flake_analysis_request, user_email, is_admin)
       queued = True
     except Exception:
       # Ignore the report when fail to queue it for async processing.
       queued = False
       logging.exception('Failed to queue flake report for async processing')
 
     return _FlakeAnalysis(queued=queued)