Enable the ninja parsing code all the time.

chrome/unit_tests.isolate

 # Copyright (c) 2012 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': [
     ['OS=="android" or OS=="linux"', {
       'variables': {
         'isolate_dependency_untracked': [
           '<(PRODUCT_DIR)/test_data/',
         ],
@@ skipping 30 matching lines @@
         'command': [
           '../testing/xvfb.py',
           '<(PRODUCT_DIR)',
           '<(PRODUCT_DIR)/unit_tests<(EXECUTABLE_SUFFIX)',
           '--brave-new-test-launcher',
           '--test-launcher-bot-mode',
         ],
         'isolate_dependency_tracked': [
           '../testing/xvfb.py',
           '<(PRODUCT_DIR)/libffmpegsumo.so',
-          '<(PRODUCT_DIR)/libosmesa.so',
           '<(PRODUCT_DIR)/locales/fr.pak',
-          '<(PRODUCT_DIR)/xdisplaycheck<(EXECUTABLE_SUFFIX)',
-        ],
-        'isolate_dependency_touched': [
-          '<(PRODUCT_DIR)/libppGoogleNaClPluginChrome.so',
         ],
       },
     }],
     ['OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'isolate_dependency_tracked': [
           '../testing/test_env.py',
           '<(PRODUCT_DIR)/unit_tests<(EXECUTABLE_SUFFIX)',
           'browser/safe_browsing/two_phase_testserver.py',
         ],
@@ skipping 10 matching lines @@
       'variables': {
         # Can't be enabled on Windows due to http://crbug.com/342913
         'read_only': 1,
       },
     }],
     ['OS=="mac"', {
       'variables': {
         'isolate_dependency_tracked': [
           '<(PRODUCT_DIR)/exif.so',
           '<(PRODUCT_DIR)/ffmpegsumo.so',
-          '<(PRODUCT_DIR)/osmesa.so',
         ],
         'isolate_dependency_untracked': [
           '<(PRODUCT_DIR)/<(mac_product_name) Framework.framework/',
         ],
       },
     }],
     ['OS=="mac" or OS=="win"', {
       'variables': {
         'command': [
           '../testing/test_env.py',
           '<(PRODUCT_DIR)/unit_tests<(EXECUTABLE_SUFFIX)',
           '--brave-new-test-launcher',
           '--test-launcher-bot-mode',
         ],
         'isolate_dependency_untracked': [
           '<(PRODUCT_DIR)/test_data/chrome/browser/resources/google_now/',
           '<(PRODUCT_DIR)/test_data/chrome/browser/resources/print_preview/',
           '<(PRODUCT_DIR)/test_data/chrome/test/data/unit/',
           '<(PRODUCT_DIR)/test_data/ui/',
         ],
       },
     }],
     ['OS=="win"', {
       'variables': {
         'isolate_dependency_tracked': [
           '<(PRODUCT_DIR)/chrome_elf.dll',
           '<(PRODUCT_DIR)/ffmpegsumo.dll',
           '<(PRODUCT_DIR)/libexif.dll',
-          '<(PRODUCT_DIR)/osmesa.dll',
         ],
         'isolate_dependency_untracked': [
           '../ppapi/lib/gl/include/KHR/',
           '../skia/ext/data/',
           '../ui/base/glib/',
         ],
       },
     }],
   ],
   'includes': [
     '../base/base.isolate',
   ],
 }