Change permissions of modules in webkitpy/w3c/ to be non-executable.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_parser.py

-#!/usr/bin/env python
-
 # Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 #
 # 1. Redistributions of source code must retain the above
 #    copyright notice, this list of conditions and the following
 #    disclaimer.
 # 2. Redistributions in binary form must reproduce the above
@@ skipping 134 matching lines @@
         href_paths = [href_tag['href'] for href_tag in elements_with_href_attributes]
 
         paths = src_paths + href_paths + urls
         for path in paths:
             if not(path.startswith('http:')) and not(path.startswith('mailto:')):
                 uri_scheme_pattern = re.compile(r"[A-Za-z][A-Za-z+.-]*:")
                 if not uri_scheme_pattern.match(path):
                     support_files.append(path)
 
         return support_files