[Findit] Re-org code.

appengine/findit/infra_api_clients/codereview/rietveld.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.
 
 # TODO: In the new layout, this should move to the ./services or
 # ./services/waterfall_app directories, since it is only used by Waterfall.
 
 # TODO: we ought to abstract over the HTTP_CLIENT member (which is only
 # used by the Post method) by passing it to the constructor. That way
 # things are more losely coupled, improving modularity and reducing
 # fragility. In addition, for easier mocking, we may want to just have
 # the thing passed for HTTP_CLIENT to be ``callable``, rather than giving
 # a name to the method we use on that object.
 
 import logging
 import re
 import urlparse
 
-from common.codereview import CodeReview
+from infra_api_clients.codereview import codereview
 from common.http_client_appengine import HttpClientAppengine
 
 
 _RIETVELD_ISSUE_NUMBER_RE = re.compile('^/(\d+)/?.*')
 
 
-class Rietveld(CodeReview):
+class Rietveld(codereview.CodeReview):
   """The implementation of CodeReview interface for Rietveld."""
   HTTP_CLIENT = HttpClientAppengine(follow_redirects=False)
 
   def _GetXsrfToken(self, rietveld_url):
     """Returns the xsrf token for follow-up requests."""
     headers = {
         'X-Requesting-XSRF-Token': '1',
         'Accept': 'text/plain',
     }
     url = '%s/xsrf_token' % rietveld_url
@@ skipping 50 matching lines @@
         'no_redirect': 'True',
     }
     content_type, body = self._EncodeMultipartFormData(form_fields)
     headers = {
         'Content-Type': content_type,
         'Accept': 'text/plain',
     }
     status_code, content = self.HTTP_CLIENT.Post(
         url, data=body, headers=headers)
     return status_code == 200 and content == 'OK'