Revert of Fix sbox_validation_tests & Make isolate_driver.py include the executable itself

ash/ash_unittests.isolate

 # Copyright (c) 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 {
   'conditions': [
     ['use_x11==0', {
       'variables': {
         'command': [
           '../testing/test_env.py',
           '<(PRODUCT_DIR)/ash_unittests<(EXECUTABLE_SUFFIX)',
@@ skipping 12 matching lines @@
         'files': [
           '../testing/xvfb.py',
           '<(PRODUCT_DIR)/xdisplaycheck<(EXECUTABLE_SUFFIX)',
         ],
       },
     }],
     ['OS=="win" or chromeos==1', {
       'variables': {
         'files': [
           '../testing/test_env.py',
+          '<(PRODUCT_DIR)/ash_unittests<(EXECUTABLE_SUFFIX)',
           '<(PRODUCT_DIR)/chrome_100_percent.pak',
           '<(PRODUCT_DIR)/chrome_200_percent.pak',
           '<(PRODUCT_DIR)/locales/en-US.pak',
           '<(PRODUCT_DIR)/keyboard_resources.pak',
         ],
       },
     }],
     ['OS=="linux"', {
       'variables': {
         'files': [
@@ skipping 14 matching lines @@
           '<(PRODUCT_DIR)/ash_unittests.exe.pdb',
         ],
       },
     }],
   ],
   'includes': [
     '../base/base.isolate',
     '../ui/gl/gl.isolate',
   ],
 }