Refactor the way that TestApi works so that it is actually useful.

scripts/slave/recipe_modules/chromium/config.py

Index: scripts/slave/recipe_modules/chromium/config.py
diff --git a/scripts/slave/recipe_modules/chromium/config.py b/scripts/slave/recipe_modules/chromium/config.py
index 9cb9b101bd8873a9e64aa7fa460f19b0eea63bfa..2463b54a8386335198805bb56a4e48ea98cf8655 100644
--- a/scripts/slave/recipe_modules/chromium/config.py
+++ b/scripts/slave/recipe_modules/chromium/config.py
@@ -2,8 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from slave.recipe_configs_util import config_item_context, ConfigGroup
-from slave.recipe_configs_util import Dict, Single, Static, Set, BadConf
+from slave.recipe_config import config_item_context, ConfigGroup
+from slave.recipe_config import Dict, Single, Static, Set, BadConf
 
 # Because of the way that we use decorators, pylint can't figure out the proper
 # type signature of functions annotated with the @config_ctx decorator.