YouCompleteMe Ninja integration should accept dirs named out_*

tools/vim/PRESUBMIT.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.
 
 """Presubmit tests for /tools/vim.
 
 Runs Python unit tests in /tools/vim/tests on upload.
 """
 
 def CheckChangeOnUpload(input_api, output_api):
   results = []
 
   # affected_files is list of files affected by this change. The paths are
   # relative to the directory containing PRESUBMIT.py.
   affected_files = [
       input_api.os_path.relpath(f, input_api.PresubmitLocalPath())
       for f in input_api.AbsoluteLocalPaths()]
 
   # Run the chromium.ycm_extra_conf_unittest test if the YCM config file is
   # changed or if any change is affecting the tests directory. This specific
   # test requires access to 'ninja' and hasn't been tested on platforms other
   # than Linux.
   if 'chromium.ycm_extra_conf.py' in affected_files or \
+      'ninja_output.py' in affected_files or \
       any([input_api.re.match(r'tests(/|\\)',f) for f in affected_files]):
     results += input_api.RunTests(
         input_api.canned_checks.GetUnitTests(
             input_api, output_api,
             ['tests/chromium.ycm_extra_conf_unittest.py']))
 
   return results