Add RoutingIDIssuer to ensure the correctness of ID to be routed.

content/public/test/routing_id_mangling_disabler.h

+// 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.
+
+#ifndef CONTENT_PUBLIC_TEST_ROUTIND_ID_MANGLING_DISABLER_H_
+#define CONTENT_PUBLIC_TEST_ROUTIND_ID_MANGLING_DISABLER_H_
+
+namespace content {
+
+// Some tests unfortunately assume that the routing ID starts from
+// one. This class temporarily satisfies such an assumption.
+class RoutingIDManglingDisabler {
+ public:
+  RoutingIDManglingDisabler();
+  ~RoutingIDManglingDisabler();
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_TEST_ROUTIND_ID_MANGLING_DISABLER_H_