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 4f41a6a96f09268840e1931be9d9d1477098b238..017db932b7ffa791b0314d09fdbb31cb1de4b288 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.