Fix css_checker.py directory exemption path.

chrome/browser/resources/PRESUBMIT.py

 # Copyright (c) 2012 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 script for Chromium WebUI resources.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into gcl/git cl, and see
 http://www.chromium.org/developers/web-development-style-guide for the rules
 we're checking against here.
@@ skipping 33 matching lines @@
     sys.path = [resources] + old_path
     from web_dev_style import css_checker, js_checker
 
     def _html_css_js_resource(p):
       return p.endswith(('.html', '.css', '.js')) and p.startswith(resources)
 
     def is_resource(maybe_resource):
       return _html_css_js_resource(maybe_resource.AbsoluteLocalPath())
 
     # TODO(samarth): remove this exception <http://crbug.com/222642>.
-    instant_path = path.join(resources, 'local_omnibox_popup')
+    instant_path = path.join(resources, 'local_ntp')
     def is_resource_no_instant(maybe_resource):
       f = maybe_resource.AbsoluteLocalPath()
       return _html_css_js_resource(f) and not f.startswith(instant_path)
 
     results.extend(css_checker.CSSChecker(
         input_api, output_api, file_filter=is_resource_no_instant).RunChecks())
     results.extend(js_checker.JSChecker(
         input_api, output_api, file_filter=is_resource).RunChecks())
   finally:
     sys.path = old_path
 
   return results