web_dev_style: tweak varNamesLikeThis check to detect endsWithUnder_

chrome/browser/web_dev_style/js_checker_test.py

 #!/usr/bin/env python
 # 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.
 
 import js_checker
 from os import path as os_path
 import re
 from sys import path as sys_path
 import test_util
@@ skipping 352 matching lines @@
     self.assertFalse('var ' in highlight);
 
   def ShouldPassVarNameCheck(self, line):
     """Checks that variableNamesLikeThis aren't style errors."""
     self.assertEqual('', self.checker.VarNameCheck(1, line),
         msg='Should not be flagged as style error: ' + line)
 
   def testVarNameFails(self):
     lines = [
         "var private_;",
+        "var hostName_ = 'https://google.com';",
         " var _super_private",
         "  var unix_hacker = someFunc();",
     ]
     for line in lines:
       self.ShouldFailVarNameCheck(line)
 
   def testVarNamePasses(self):
     lines = [
         "  var namesLikeThis = [];",
         " for (var i = 0; i < 10; ++i) { ",
         "for (var i in obj) {",
         " var one, two, three;",
         "  var magnumPI = {};",
         " var g_browser = 'da browzer';",
         "/** @const */ var Bla = options.Bla;",  # goog.scope() replacement.
         " var $ = function() {",                 # For legacy reasons.
         "  var StudlyCaps = cr.define('bla')",   # Classes.
         " var SCARE_SMALL_CHILDREN = [",         # TODO(dbeam): add @const in
                                                  # front of all these vars like
         "/** @const */ CONST_VAR = 1;",          # this line has (<--).
     ]
     for line in lines:
       self.ShouldPassVarNameCheck(line)
 
 
 if __name__ == '__main__':
   unittest.main()