detect preferences errors

chrome/renderer/extensions/extension_api_json_validity_unittest.cc

Index: chrome/renderer/extensions/extension_api_json_validity_unittest.cc
diff --git a/chrome/renderer/extensions/extension_api_json_validity_unittest.cc b/chrome/renderer/extensions/extension_api_json_validity_unittest.cc
index 7a54d77807fc6a0a291125cc35633fc2e301c863..eb7f1999cbcc855818475e44e324332390995646 100644
--- a/chrome/renderer/extensions/extension_api_json_validity_unittest.cc
+++ b/chrome/renderer/extensions/extension_api_json_validity_unittest.cc
@@ -92,7 +92,7 @@ TEST_F(ExtensionApiJsonValidityTest, Basic) {
 
   // Check that extension_api.json can be parsed as JSON.
   JSONFileValueSerializer serializer(extension_api_json);
-  scoped_ptr<Value> root(serializer.Deserialize(&error_message));
+  scoped_ptr<Value> root(serializer.Deserialize(NULL, &error_message));
   ASSERT_TRUE(root.get()) << error_message;
   ASSERT_EQ(Value::TYPE_LIST, root->GetType());
   ListValue* root_list = static_cast<ListValue*>(root.get());