Revert of Make DOMWrapperWorld::current() return a reference instead of a pointer

Source/bindings/tests/idls/TestSpecialOperationsInt.idl

Index: Source/bindings/tests/idls/TestSpecialOperationsInt.idl
diff --git a/Source/bindings/tests/idls/TestSpecialOperationsInt.idl b/Source/bindings/tests/idls/TestSpecialOperationsInt.idl
new file mode 100644
index 0000000000000000000000000000000000000000..bd2a6fabc191c32e9eb46f0da5743e7f9ad02a4a
--- /dev/null
+++ b/Source/bindings/tests/idls/TestSpecialOperationsInt.idl
@@ -0,0 +1,11 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+interface TestSpecialOperationsInt {
+    getter long (unsigned long index);
+    setter void (unsigned long index, unsigned long value);
+
+    getter long (DOMString name);
+    setter void (DOMString name, unsigned long value);
+};