Add catalog unittests

mojo/services/catalog/builder.h

Index: mojo/services/catalog/builder.h
diff --git a/mojo/services/catalog/builder.h b/mojo/services/catalog/builder.h
new file mode 100644
index 0000000000000000000000000000000000000000..2f3e1aa322038bcb14e8cc81abd6e1a4da4f82f6
--- /dev/null
+++ b/mojo/services/catalog/builder.h
@@ -0,0 +1,22 @@
+// Copyright 2016 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 MOJO_SERVICES_CATALOG_BUILDER_H_
+#define MOJO_SERVICES_CATALOG_BUILDER_H_
+
+#include "mojo/services/catalog/entry.h"
+
+namespace base {
+class DictionaryValue;
+}
+
+namespace catalog {
+
+Entry BuildEntry(const base::DictionaryValue& value);
+
+void SerializeEntry(const Entry& entry, base::DictionaryValue** value);
+
+}  // namespace catalog
+
+#endif  // MOJO_SERVICES_CATALOG_BUILDER_H_