From c59f8736343cd0dedfb8ebed74a0bd0ab4b83149 Mon Sep 17 00:00:00 2001
From: Kris Maglione <maglione.k@gmail.com>
Date: Sat, 22 Feb 2014 10:23:22 -0800
Subject: [PATCH] Get rid of more deprecated Set method calls.

---
 common/modules/options.jsm |  4 ++--
 common/modules/util.jsm    | 10 ++++++----
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/common/modules/options.jsm b/common/modules/options.jsm
index f973a453..54bb1138 100644
--- a/common/modules/options.jsm
+++ b/common/modules/options.jsm
@@ -677,8 +677,8 @@ var Option = Class("Option", {
             values = Array.concat(values);
 
             function uniq(ary) {
-                let seen = {};
-                return ary.filter(elem => !Set.add(seen, elem));
+                let seen = RealSet();
+                return ary.filter(elem => !seen.add(elem));
             }
 
             switch (operator) {
diff --git a/common/modules/util.jsm b/common/modules/util.jsm
index 657696e5..cad4b5fc 100644
--- a/common/modules/util.jsm
+++ b/common/modules/util.jsm
@@ -1698,7 +1698,8 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
      * @returns {[string]} The visible domains.
      */
     visibleHosts: function visibleHosts(win) {
-        let res = [], seen = {};
+        let res = [],
+            seen = RealSet();
         (function rec(frame) {
             try {
                 if (frame.location.hostname)
@@ -1707,7 +1708,7 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
             catch (e) {}
             Array.forEach(frame.frames, rec);
         })(win);
-        return res.filter(h => !Set.add(seen, h));
+        return res.filter(h => !seen.add(h));
     },
 
     /**
@@ -1718,7 +1719,8 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
      * @returns {[nsIURI]} The visible URIs.
      */
     visibleURIs: function visibleURIs(win) {
-        let res = [], seen = {};
+        let res = [],
+            seen = RealSet();
         (function rec(frame) {
             try {
                 res = res.concat(util.newURI(frame.location.href));
@@ -1726,7 +1728,7 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
             catch (e) {}
             Array.forEach(frame.frames, rec);
         })(win);
-        return res.filter(h => !Set.add(seen, h.spec));
+        return res.filter(h => !seen.add(h.spec));
     },
 
     /**