Add catalog unittests

mojo/services/catalog/entry.h

Index: mojo/services/catalog/entry.h
diff --git a/mojo/services/catalog/entry.h b/mojo/services/catalog/entry.h
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+// 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_ENTRY_H_
+#define MOJO_SERVICES_CATALOG_ENTRY_H_
+
+#include <map>
+#include <set>
+#include <string>
+
+namespace catalog {
+
+// A set of names of interfaces that may be exposed to an application.
+using AllowedInterfaces = std::set<std::string>;
+// A map of allowed applications to allowed interface sets. See shell.mojom for
+// more details.
+using CapabilityFilter = std::map<std::string, AllowedInterfaces>;
+
+// Static information about an application package known to the Catalog.
+struct Entry {
+  Entry();
+  Entry(const Entry& other);
+  ~Entry();
+
+  std::string name;
+  std::string qualifier;
+  std::string display_name;
+  CapabilityFilter capabilities;
+};
+
+}  // namespace catalog
+
+#endif  // MOJO_SERVICES_CATALOG_ENTRY_H_