Run layout tests on Site Isolation Win FYI bot.

scripts/slave/recipe_modules/chromium_tests/chromium_fyi.py

 # Copyright 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.
 
 from . import steps
 
 RESULTS_URL = 'https://chromeperf.appspot.com'
 
 
 KITCHEN_TEST_SPEC = {
@@ skipping 534 matching lines @@
         'TARGET_BITS': 64,
       },
       'GYP_DEFINES': {
         'dcheck_always_on': '1',
       },
       'bot_type': 'builder_tester',
       'compile_targets': [
         'content_unittests',
         'content_browsertests',
       ],
+      'tests': [
+        steps.BlinkTest(extra_args=[
+          '--additional-driver-flag',
+          '--isolate-sites-for-testing=*.is',
+          '--additional-expectations',
+          'src\\third_party\\WebKit\\LayoutTests\\FlagExpectations\\isolate-extensions',
+        ]),
+      ],
       'test_generators': [
         steps.generate_gtest,
         steps.generate_script,
         steps.generate_isolated_script,
       ],
       'testing': {
         'platform': 'win',
       },
     },
     'Browser Side Navigation Linux': {
@@ skipping 1659 matching lines @@
       'enable_swarming': True,
       'testing': {
         'platform': 'win',
       },
     },
 
     'Linux Kitchen (kitchen_run)': KITCHEN_TEST_SPEC,
     'Linux Kitchen (annotated_run)': KITCHEN_TEST_SPEC,
   },
 }