Eliminate support for V0 manifests, migrate all to V1.

media/mojo/services/apptest_manifest.json

Index: media/mojo/services/apptest_manifest.json
diff --git a/media/mojo/services/apptest_manifest.json b/media/mojo/services/apptest_manifest.json
index 0feacd047ff0ea7b368b1373b24cafc789cd7aa9..13c645c0d200c8e7d4ff1937cf573883691a02cf 100644
--- a/media/mojo/services/apptest_manifest.json
+++ b/media/mojo/services/apptest_manifest.json
@@ -1,5 +1,11 @@
 {
+  "manifest_version":  1,
   "name": "mojo:media_apptests",
   "display_name": "Media Apptests",
-  "capabilities": { "*": ["*"] }
+  "capabilities": {
+    "required": {
+      "*": { "classes": [ "app" ] },
+      "mojo:media": { "interfaces": [ "media::interfaces::ServiceFactory" ] }
+    }
+  }
 }