Create an antialiased virtual layout test group for font testing on Mac

Tools/Scripts/webkitpy/layout_tests/port/base.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 1586 matching lines @@
                              ['--stable-release-mode']),
             VirtualTestSuite('stable',
                              'web-animations-api/eased-keyframes.html',
                              ['--stable-release-mode']),
             VirtualTestSuite('linux-subpixel',
                              'platform/linux/fast/text/subpixel',
                              ['--enable-webkit-text-subpixel-positioning']),
             VirtualTestSuite('windows-directwrite',
                              'fast/text',
                              ['--enable-direct-write', '--enable-font-antialiasing']),
+            VirtualTestSuite('mac-antialiasedtext',
+                             'fast/text',
+                             ['--enable-font-antialiasing']),
+
         ]
 
     @memoized
     def populated_virtual_test_suites(self):
         suites = self.virtual_test_suites()
 
         # Sanity-check the suites to make sure they don't point to other suites.
         suite_dirs = [suite.name for suite in suites]
         for suite in suites:
             assert suite.base not in suite_dirs
@@ skipping 147 matching lines @@
             if name.find('/') != -1:
                 _log.error("Virtual test suites names cannot contain /'s: %s" % name)
                 return
             self.name = 'virtual/' + name + '/' + base
         self.base = base
         self.args = args
         self.tests = tests or set()
 
     def __repr__(self):
         return "VirtualTestSuite('%s', '%s', %s)" % (self.name, self.base, self.args)