diff -r 000000000000 -r 6474c204b198 dom/mobilemessage/src/Constants.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/mobilemessage/src/Constants.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+namespace mozilla {
+namespace dom {
+namespace mobilemessage {
+
+const char* kSmsReceivedObserverTopic        = "sms-received";
+const char* kSmsRetrievingObserverTopic      = "sms-retrieving";
+const char* kSmsSendingObserverTopic         = "sms-sending";
+const char* kSmsSentObserverTopic            = "sms-sent";
+const char* kSmsFailedObserverTopic          = "sms-failed";
+const char* kSmsDeliverySuccessObserverTopic = "sms-delivery-success";
+const char* kSmsDeliveryErrorObserverTopic   = "sms-delivery-error";
+const char* kSilentSmsReceivedObserverTopic  = "silent-sms-received";
+const char* kSmsReadSuccessObserverTopic     = "sms-read-success";
+const char* kSmsReadErrorObserverTopic       = "sms-read-error";
+
+} // namespace mobilemessage
+} // namespace dom
+} // namespace mozilla