[Culprit-Finder] Seperate gae related part in cache_decorator and gitile repository to gae_libs/

appengine/findit/lib/gitiles/gitiles_repository.py

 # Copyright 2014 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 base64
 from datetime import datetime
 from datetime import timedelta
 import json
 import re
 
-# TODO(http://crbug.com/660466): We should try to break dependencies.
-from lib.cache_decorator import Cached
-from lib.cache_decorator import CompressedMemCacher
 from lib.gitiles import commit_util
 from lib.gitiles import diff
 from lib.gitiles.blame import Blame
 from lib.gitiles.blame import Region
 from lib.gitiles.change_log import ChangeLog
 from lib.gitiles.change_log import FileChangeInfo
 from lib.gitiles.git_repository import GitRepository
 from lib.time_util import TimeZoneInfo
 
 COMMIT_POSITION_PATTERN = re.compile(
@@ skipping 27 matching lines @@
     self._repo_url = repo_url
 
   @property
   def http_client(self):
     return self._http_client
 
   @property
   def identifier(self):
     return self.repo_url
 
-  @Cached(namespace='Gitiles-json-view', expire_time=CACHE_EXPIRE_TIME_SECONDS,
-          cacher=CompressedMemCacher())
   def _SendRequestForJsonResponse(self, url, params=None):
     if params is None:  # pragma: no cover
       params = {}
     params['format'] = 'json'
 
     # Gerrit prepends )]}' to json-formatted response.
     prefix = ')]}\'\n'
 
     status_code, content = self.http_client.Get(url, params)
     if status_code != 200:
       return None
     elif not content or not content.startswith(prefix):
       raise Exception('Response does not begin with %s' % prefix)
 
     return json.loads(content[len(prefix):])
 
-  @Cached(namespace='Gitiles-text-view', expire_time=CACHE_EXPIRE_TIME_SECONDS)
   def _SendRequestForTextResponse(self, url):
     status_code, content = self.http_client.Get(url, {'format': 'text'})
     if status_code != 200:
       return None
     return base64.b64decode(content)
 
   def _GetDateTimeFromString(self, datetime_string,
                              date_format='%a %b %d %H:%M:%S %Y'):
     if TIMEZONE_PATTERN.findall(datetime_string):
       # Need to handle timezone conversion.
@@ skipping 131 matching lines @@
 
       for log in data['log']:
         changelogs.append(self._ParseChangeLogFromLogData(log))
 
       if 'next' in data:
         next_end_revision = data['next']
       else:
         next_end_revision = None
 
     return changelogs