Bug 962977 - Unable to remove WAP push/SMS message from notification bar unless pressing "clear all" button or reboot device. r=gwagner

dom/src/notification/NotificationDB.jsm

@@ -140,10 +140,20 @@ let NotificationDB = {
   receiveMessage: function(message) {
     if (DEBUG) { debug("Received message:" + message.name); }
 
+    // sendAsyncMessage can fail if the child process exits during a
+    // notification storage operation, so always wrap it in a try/catch.
+    function returnMessage(name, data) {
+      try {
+        message.target.sendAsyncMessage(name, data);
+      } catch (e) {
+        if (DEBUG) { debug("Return message failed, " + name); }
+      }
+    }
+
     switch (message.name) {
       case "Notification:GetAll":
         this.queueTask("getall", message.data, function(notifications) {
-          message.target.sendAsyncMessage("Notification:GetAll:Return:OK", {
+          returnMessage("Notification:GetAll:Return:OK", {
             requestID: message.data.requestID,
             notifications: notifications
           });
@@ -152,7 +162,7 @@ let NotificationDB = {
 
       case "Notification:Save":
         this.queueTask("save", message.data, function() {
-          message.target.sendAsyncMessage("Notification:Save:Return:OK", {
+          returnMessage("Notification:Save:Return:OK", {
             requestID: message.data.requestID
           });
         });
@@ -160,7 +170,7 @@ let NotificationDB = {
 
       case "Notification:Delete":
         this.queueTask("delete", message.data, function() {
-          message.target.sendAsyncMessage("Notification:Delete:Return:OK", {
+          returnMessage("Notification:Delete:Return:OK", {
             requestID: message.data.requestID
           });
         });