Eliminate support for V0 manifests, migrate all to V1.

media/mojo/services/pipeline_apptest_manifest.json

Index: media/mojo/services/pipeline_apptest_manifest.json
diff --git a/media/mojo/services/pipeline_apptest_manifest.json b/media/mojo/services/pipeline_apptest_manifest.json
index 115bc8a860490b8b0b3c59e869ac3c6e338178b9..94056c632358034e031beaaa8f8004da848ee770 100644
--- a/media/mojo/services/pipeline_apptest_manifest.json
+++ b/media/mojo/services/pipeline_apptest_manifest.json
@@ -1,5 +1,10 @@
 {
+  "manifest_version": 1,
   "name": "mojo:media_pipeline_integration_apptests",
   "display_name": "Media Pipeline Integration Apptests",
-  "capabilities": { "*": ["*"] }
+  "capabilities": {
+    "required": {
+      "*": { "classes": [ "app" ] }
+    }
+  }
 }