Run Mus Demo and WS tests on Ozone Linux bot

testing/buildbot/chromium.fyi.json

Index: testing/buildbot/chromium.fyi.json
diff --git a/testing/buildbot/chromium.fyi.json b/testing/buildbot/chromium.fyi.json
index aa7ef08b471e17988450483416575ebbf2cb4e66..c5681925b12f7e76e91fb2738cab672bcabaa91e 100644
--- a/testing/buildbot/chromium.fyi.json
+++ b/testing/buildbot/chromium.fyi.json
@@ -11422,6 +11422,22 @@
       }
     ]
   },
+  "Ozone Linux": {
+    "gtest_tests": [
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "mus_demo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "mus_ws_unittests"
+      }
+    ]
+  },
   "Site Isolation Android": {
     "gtest_tests": [
       {