Bug 1231839: Import AppConstants as needed. r=Dolske

--HG--
extra : rebase_source : 966416f258fede0c4cd5a6f2866e1b13c913cc84

toolkit/components/satchel/nsFormHistory.js

@@ -12,6 +12,8 @@ Components.utils.import("resource://gre/modules/Services.jsm");
 
 XPCOMUtils.defineLazyModuleGetter(this, "Deprecated",
                                   "resource://gre/modules/Deprecated.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
+                                  "resource://gre/modules/AppConstants.jsm");
 
 const DB_VERSION = 4;
 const DAY_IN_MS  = 86400000; // 1 day in milliseconds