Add webkitpy platform support for Mac 10.10 Yosemite.

Tools/Scripts/webkitpy/layout_tests/port/mac_unittest.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 27 matching lines @@
     os_version = 'snowleopard'
     port_name = 'mac'
     full_port_name = 'mac-snowleopard'
     port_maker = mac.MacPort
 
     def assert_name(self, port_name, os_version_string, expected):
         port = self.make_port(os_version=os_version_string, port_name=port_name)
         self.assertEqual(expected, port.name())
 
     def test_versions(self):
-        self.assertTrue(self.make_port().name() in ('mac-snowleopard', 'mac-lion', 'mac-mountainlion', 'mac-mavericks'))
+        self.assertTrue(self.make_port().name() in ('mac-snowleopard', 'mac-lion', 'mac-mountainlion', 'mac-mavericks', 'mac-yosemite'))
 
         self.assert_name(None, 'snowleopard', 'mac-snowleopard')
         self.assert_name('mac', 'snowleopard', 'mac-snowleopard')
         self.assert_name('mac-snowleopard', 'leopard', 'mac-snowleopard')
         self.assert_name('mac-snowleopard', 'snowleopard', 'mac-snowleopard')
 
         self.assert_name(None, 'lion', 'mac-lion')
         self.assert_name(None, 'mountainlion', 'mac-mountainlion')
         self.assert_name(None, 'mavericks', 'mac-mavericks')
-        self.assert_name(None, 'future', 'mac-mavericks')
+        self.assert_name(None, 'yosemite', 'mac-yosemite')
+        self.assert_name(None, 'future', 'mac-yosemite')
 
         self.assert_name('mac', 'lion', 'mac-lion')
         self.assertRaises(AssertionError, self.assert_name, None, 'tiger', 'should-raise-assertion-so-this-value-does-not-matter')
 
     def test_baseline_path(self):
         port = self.make_port(port_name='mac-snowleopard')
         self.assertEqual(port.baseline_path(), port._webkit_baseline_path('mac-snowleopard'))
 
         port = self.make_port(port_name='mac-lion')
         self.assertEqual(port.baseline_path(), port._webkit_baseline_path('mac-lion'))
 
         port = self.make_port(port_name='mac-mountainlion')
         self.assertEqual(port.baseline_path(), port._webkit_baseline_path('mac-mountainlion'))
 
         port = self.make_port(port_name='mac-mavericks')
+        self.assertEqual(port.baseline_path(), port._webkit_baseline_path('mac-mavericks'))
+
+        port = self.make_port(port_name='mac-yosemite')
         self.assertEqual(port.baseline_path(), port._webkit_baseline_path('mac'))
 
     def test_operating_system(self):
         self.assertEqual('mac', self.make_port().operating_system())
 
     def test_build_path(self):
         # Test that optional paths are used regardless of whether they exist.
         options = MockOptions(configuration='Release', build_directory='/foo')
         self.assert_build_path(options, ['/mock-checkout/out/Release'], '/foo/Release')
 
@@ skipping 16 matching lines @@
         # Check with 'xcodebuild' being newer.
         port.host.filesystem.mtime = lambda f: 5 if '/xcodebuild/' in f else 4
         self.assertEqual(port._build_path(), '/mock-checkout/xcodebuild/Release')
 
     def test_driver_name_option(self):
         self.assertTrue(self.make_port()._path_to_driver().endswith('Content Shell'))
         self.assertTrue(self.make_port(options=MockOptions(driver_name='OtherDriver'))._path_to_driver().endswith('OtherDriver'))
 
     def test_path_to_image_diff(self):
         self.assertEqual(self.make_port()._path_to_image_diff(), '/mock-checkout/out/Release/image_diff')