Bug 486234 - Give changes json file name for history, passwords

services/sync/modules/engines/history.js

@@ -473,6 +473,7 @@ function HistoryTracker() {
 HistoryTracker.prototype = {
   __proto__: Tracker.prototype,
   _logName: "HistoryTracker",
+  file: "history",
 
   QueryInterface: XPCOMUtils.generateQI([Ci.nsINavHistoryObserver]),
 

services/sync/modules/engines/passwords.js

@@ -227,6 +227,7 @@ function PasswordTracker() {
 PasswordTracker.prototype = {
   __proto__: Tracker.prototype,
   _logName: "PasswordTracker",
+  file: "password",
 
   _init: function PasswordTracker_init() {
     Tracker.prototype._init.call(this);