media: Enable media_mojo_unittests on more bots

testing/buildbot/chromium.memory.json

Index: testing/buildbot/chromium.memory.json
diff --git a/testing/buildbot/chromium.memory.json b/testing/buildbot/chromium.memory.json
index 77c30acf62bd01719e0a6d766e92f8e45e92a442..875c218b2cae54f4d14396e2dd127fe8fa31459a 100644
--- a/testing/buildbot/chromium.memory.json
+++ b/testing/buildbot/chromium.memory.json
@@ -169,6 +169,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "media_mojo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "media_unittests"
       },
       {
@@ -458,6 +464,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "media_mojo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "message_center_unittests"
       },
       {
@@ -683,6 +695,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "media_mojo_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "media_unittests"
       },
       {