media: Enable media_mojo_unittests on more bots

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 11cb186fb98f5975741909499477459b8f84c52c..bd3c0a08a55eef6e081023697c64dd4d6d5db42a 100644
--- a/testing/buildbot/chromium.chromiumos.json
+++ b/testing/buildbot/chromium.chromiumos.json
@@ -279,6 +279,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "media_mojo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "media_unittests"
       },
       {
@@ -657,6 +663,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "media_mojo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "media_unittests"
       },
       {
@@ -985,6 +997,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "media_mojo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "media_unittests"
       },
       {