shill: Create and register a Cellular device for each ModemManager.Modem.

BUG=chromium-os:17818
TEST=unit tests

Change-Id: Ic35adf35c8021f4c9689e72ddd03776948d036c1
Reviewed-on: http://gerrit.chromium.org/gerrit/4711
Reviewed-by: Darin Petkov <petkov@chromium.org>
Tested-by: Darin Petkov <petkov@chromium.org>
diff --git a/mock_dbus_properties_proxy.h b/mock_dbus_properties_proxy.h
new file mode 100644
index 0000000..18b5d6e
--- /dev/null
+++ b/mock_dbus_properties_proxy.h
@@ -0,0 +1,21 @@
+// Copyright (c) 2011 The Chromium OS 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 SHILL_MOCK_DBUS_PROPERTIES_PROXY_H_
+#define SHILL_MOCK_DBUS_PROPERTIES_PROXY_H_
+
+#include <gmock/gmock.h>
+
+#include "shill/dbus_properties_proxy_interface.h"
+
+namespace shill {
+
+class MockDBusPropertiesProxy : public DBusPropertiesProxyInterface {
+ public:
+  MOCK_METHOD1(GetAll, DBusPropertiesMap(const std::string &interface_name));
+};
+
+}  // namespace shill
+
+#endif  // SHILL_MOCK_DBUS_PROPERTIES_PROXY_H_