Rename various methods in webkitpy.layout_test.Port to be public

Tools/Scripts/webkitpy/layout_tests/port/linux.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 133 matching lines @@
                                   'platform/linux/fast/text/subpixel',
                                   ['--enable-webkit-text-subpixel-positioning']),
         ])
         return result
 
     #
     # PROTECTED METHODS
     #
 
     def _check_apache_install(self):
-        result = self._check_file_exists(self._path_to_apache(), "apache2")
-        result = self._check_file_exists(self._path_to_apache_config_file(), "apache2 config file") and result
+        result = self._check_file_exists(self.path_to_apache(), "apache2")
+        result = self._check_file_exists(self.path_to_apache_config_file(), "apache2 config file") and result
         if not result:
             _log.error('    Please install using: "sudo apt-get install apache2 libapache2-mod-php5"')
             _log.error('')
         return result
 
     def _check_lighttpd_install(self):
         result = self._check_file_exists(
             self._path_to_lighttpd(), "LigHTTPd executable")
         result = self._check_file_exists(self._path_to_lighttpd_php(), "PHP CGI executable") and result
         result = self._check_file_exists(self._path_to_lighttpd_modules(), "LigHTTPd modules") and result
         if not result:
             _log.error('    Please install using: "sudo apt-get install lighttpd php5-cgi"')
             _log.error('')
         return result
 
     def _wdiff_missing_message(self):
         return 'wdiff is not installed; please install using "sudo apt-get install wdiff"'
 
-    def _path_to_apache(self):
+    def path_to_apache(self):
         # The Apache binary path can vary depending on OS and distribution
         # See http://wiki.apache.org/httpd/DistrosDefaultLayout
         for path in ["/usr/sbin/httpd", "/usr/sbin/apache2"]:
             if self._filesystem.exists(path):
                 return path
         _log.error("Could not find apache. Not installed or unknown path.")
         return None
 
-    def _path_to_lighttpd(self):
+    def path_to_lighttpd(self):
         return "/usr/sbin/lighttpd"
 
-    def _path_to_lighttpd_modules(self):
+    def path_to_lighttpd_modules(self):
         return "/usr/lib/lighttpd"
 
-    def _path_to_lighttpd_php(self):
+    def path_to_lighttpd_php(self):
         return "/usr/bin/php-cgi"
 
     def _path_to_driver(self, configuration=None):
         binary_name = self.driver_name()
         return self._build_path_with_configuration(configuration, binary_name)
 
     def _path_to_helper(self):
         return None