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

chrome/angle_deqp_gles2_tests.isolate

 # Copyright 2015 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.
 # TOOD(jmadill): disable gtest batching
 {
   'includes': [
     '../base/base.isolate',
     '../third_party/angle/angle_on_all_platforms.isolate',
   ],
   'conditions': [
     ['OS=="win" or OS=="linux"', {
       'variables': {
         'command': [
           '<(PRODUCT_DIR)/angle_deqp_gles2_tests<(EXECUTABLE_SUFFIX)',
           '--test-launcher-batch-limit=400',
         ],
         'files': [
+          '<(PRODUCT_DIR)/angle_deqp_gles2_tests<(EXECUTABLE_SUFFIX)',
           '<(PRODUCT_DIR)/deqp_support/deqp_gles2_test_expectations.txt',
           '<(PRODUCT_DIR)/deqp_support/dEQP-GLES2-cases.txt.gz',
           '../third_party/deqp/src/data/',
         ],
       },
     }],
     ['OS=="win"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/angle_deqp_libgles2.dll',
         ],
       },
     }],
     ['OS=="linux"', {
       'variables': {
         'files': [
           '<(PRODUCT_DIR)/lib/libangle_deqp_libgles2.so',
         ],
       },
     }],
   ],
 }