In rebaseline-cl, don't check for local file existence.

third_party/WebKit/Tools/Scripts/webkitpy/common/net/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.
 
 """Utility functions to communicate with Rietveld."""
 
 import json
 import logging
 import urllib2
 
@@ skipping 59 matching lines @@
         """
         builder_to_latest_build = {}
         for build in builds:
             if build.builder_name not in builder_to_latest_build:
                 builder_to_latest_build[build.builder_name] = build
             elif build.build_number > builder_to_latest_build[build.builder_name].build_number:
                 builder_to_latest_build[build.builder_name] = build
         return sorted(builder_to_latest_build.values())
 
     def changed_files(self, issue_number):
-        """Lists the files included in a CL, or None if this can't be determined.
+        """Lists the files included in a CL that are changed but not deleted.
 
         File paths are sorted and relative to the repository root.
         """
         try:
             url = self._latest_patchset_url(issue_number)
             issue_data = self._get_json(url)
-            return sorted(issue_data['files'])
+            return sorted(path for path, file_change in issue_data['files'].iteritems() if file_change['status'] != 'D')
         except (urllib2.URLError, ValueError, KeyError):
             _log.warning('Failed to list changed files for issue %s.', issue_number)
             return None
 
     def _latest_patchset_url(self, issue_number):
         issue_data = self._get_json(self._issue_url(issue_number))
         latest_patchset_number = issue_data["patchsets"][-1]
         return self._patchset_url(issue_number, latest_patchset_number)
 
     def _get_json(self, url):
@@ skipping 12 matching lines @@
             return json.loads(contents)
         except ValueError:
             _log.error('Invalid JSON: %s', contents)
             raise
 
     def _issue_url(self, issue_number):
         return '%s/%s' % (BASE_CODEREVIEW_URL, issue_number)
 
     def _patchset_url(self, issue_number, patchset_number):
         return '%s/%s' % (self._issue_url(issue_number), patchset_number)