Run layout tests on Site Isolation Win FYI bot.

scripts/slave/recipe_modules/chromium_tests/chromium_fyi.py

Index: scripts/slave/recipe_modules/chromium_tests/chromium_fyi.py
diff --git a/scripts/slave/recipe_modules/chromium_tests/chromium_fyi.py b/scripts/slave/recipe_modules/chromium_tests/chromium_fyi.py
index 99696d82ee0042fe7d8ce3675c183e682e764c00..23494252e30c38b05163311cee96fe72d585fa94 100644
--- a/scripts/slave/recipe_modules/chromium_tests/chromium_fyi.py
+++ b/scripts/slave/recipe_modules/chromium_tests/chromium_fyi.py
@@ -552,6 +552,14 @@ SPEC = {
         'content_unittests',
         'content_browsertests',
       ],
+      'tests': [
+        steps.BlinkTest(extra_args=[
+          '--additional-driver-flag',
+          '--isolate-extensions',
+          '--additional-expectations',
+          'src\\third_party\\WebKit\\LayoutTests\\FlagExpectations\\isolate-extensions',

[Dirk Pranke, 2016/06/24 23:16:35]

I'm not sure if backslashes or forward slashes matters much here ...

[alexmos, 2016/06/24 23:20:42]

I wasn't sure either, but when I tried forward slashes, that preserved them into
the .json file, where all the other paths used backslashes.  That looked wrong,
so I changed it here.

+        ]),
+      ],
       'test_generators': [
         steps.generate_gtest,
         steps.generate_script,