[Extensions] Don't generate a list for each generated schema

tools/json_schema_compiler/cpp_bundle_generator.py

Index: tools/json_schema_compiler/cpp_bundle_generator.py
diff --git a/tools/json_schema_compiler/cpp_bundle_generator.py b/tools/json_schema_compiler/cpp_bundle_generator.py
index 5bc5a7c56ea290958823a3449f7a8769a103358a..89501e2cf14b2c086fd3c2172475b74367e625fa 100644
--- a/tools/json_schema_compiler/cpp_bundle_generator.py
+++ b/tools/json_schema_compiler/cpp_bundle_generator.py
@@ -326,9 +326,8 @@ class _SchemasCCGenerator(object):
     c.Append('namespace {')
     for api in self._bundle._api_defs:
       namespace = self._bundle._model.namespaces[api.get('namespace')]
-      # JSON parsing code expects lists of schemas, so dump a singleton list.
-      json_content = json.dumps([_PrefixSchemaWithNamespace(
-                                     _RemoveUnneededFields(api))],
+      json_content = json.dumps(_PrefixSchemaWithNamespace(
+                                     _RemoveUnneededFields(api)),
                                 separators=(',', ':'))
       # Escape all double-quotes and backslashes. For this to output a valid
       # JSON C string, we need to escape \ and ". Note that some schemas are