Handle |public| in check_gn_headers.py

build/check_gn_headers_unittest.py

 #!/usr/bin/env python
 # Copyright 2017 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 logging
 import json
 import os
 import unittest
 import check_gn_headers
@@ skipping 20 matching lines @@
 ninja_input_win = ninja_input.replace('/', '\\')
 
 
 gn_input = json.loads(r'''
 {
    "others": [],
    "targets": {
       "//:All": {
       },
       "//:base": {
+         "public": [ "//base/p.h" ],
          "sources": [ "//base/a.cc", "//base/a.h", "//base/b.hh" ],
          "visibility": [ "*" ]
       }
     }
 }
 ''')
 
 
 whitelist = r'''
    white-front.c
@@ skipping 30 matching lines @@
     ])
     self.assertEquals(headers, expected)
 
     os.sep = old_sep
 
   def testGn(self):
     headers = check_gn_headers.ParseGNProjectJSON(gn_input)
     expected = set([
         'base/a.h',
         'base/b.hh',
+        'base/p.h',
     ])
     self.assertEquals(headers, expected)
 
   def testWhitelist(self):
     output = check_gn_headers.ParseWhiteList(whitelist)
     expected = set([
         'white-front.c',
         'a/b/c/white-end.c',
         'dir/white-both.c',
         'a/b/c',
     ])
     self.assertEquals(output, expected)
 
 
 if __name__ == '__main__':
   logging.getLogger().setLevel(logging.DEBUG)
   unittest.main(verbosity=2)