Add tests from X11 CrOS to Ozone CrOS trybot.

testing/buildbot/chromium.chromiumos.json

Index: testing/buildbot/chromium.chromiumos.json
diff --git a/testing/buildbot/chromium.chromiumos.json b/testing/buildbot/chromium.chromiumos.json
index b88b2ea435511be98c7d889357154d74ad162a7c..171db6c465e30d2f70399a505130244dc2d05813 100644
--- a/testing/buildbot/chromium.chromiumos.json
+++ b/testing/buildbot/chromium.chromiumos.json
@@ -79,6 +79,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "chrome_app_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "chromeos_unittests"
       },
       {
@@ -98,6 +104,12 @@
       },
       {
         "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "compositor_unittests"
+      },
+      {
+        "swarming": {
           "can_use_on_swarming_builders": true,
           "shards": 2
         },
@@ -143,6 +155,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "exo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "extensions_browsertests"
       },
       {