Use sky_shell instead of mojo_shell for testing.

sky/tools/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 41 matching lines @@
 
     BUILD_REQUIREMENTS_URL = 'https://code.google.com/p/chromium/wiki/LinuxBuildInstructions'
 
     @classmethod
     def _determine_driver_path_statically(cls, host, options):
         config_object = config.Config(host.executive, host.filesystem)
         build_directory = getattr(options, 'build_directory', None)
         finder = WebKitFinder(host.filesystem)
         webkit_base = finder.webkit_base()
         chromium_base = finder.chromium_base()
-        driver_name = getattr(options, 'driver_name', None)
-        if driver_name is None:
-            driver_name = cls.CONTENT_SHELL_NAME
+        driver_name = cls.SKY_SHELL_NAME
         if hasattr(options, 'configuration') and options.configuration:
             configuration = options.configuration
         else:
             configuration = config_object.default_configuration()
         return cls._static_build_path(host.filesystem, build_directory, chromium_base, configuration, [driver_name])
 
     @staticmethod
     def _determine_architecture(filesystem, executive, driver_path):
         file_output = ''
         if filesystem.isfile(driver_path):
@@ skipping 81 matching lines @@
                 return path
         _log.error("Could not find apache. Not installed or unknown path.")
         return None
 
     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