From 3d6a5e08bdc30a68a1b9c2962abe41684282baa6 Mon Sep 17 00:00:00 2001
From: Mark Hammond <mhammond@skippinet.com.au>
Date: Sat, 10 May 2014 02:02:00 -0400
Subject: [PATCH] Bug 966579 - Tweaks to mutation observer usage for fix
 intermittent chat orange. r=mixedpuppy

---
 browser/base/content/test/social/head.js | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/browser/base/content/test/social/head.js b/browser/base/content/test/social/head.js
index 2369533ade9..53cc7e25c41 100644
--- a/browser/base/content/test/social/head.js
+++ b/browser/base/content/test/social/head.js
@@ -543,17 +543,18 @@ function resizeAndCheckWidths(first, second, third, checks, cb) {
         }
         ok(true, count + ": " + "correct number of chats visible");
         info(">> Check " + count);
-        resizeAndCheckWidths(first, second, third, checks, cb);
-        return true;
+        executeSoon(function() {
+          resizeAndCheckWidths(first, second, third, checks, cb);
+        });
       }
-      return false;
-    }
-    if (!collapsedObserver()) {
-      let m = new MutationObserver(collapsedObserver);
-      m.observe(first, {attributes: true });
-      m.observe(second, {attributes: true });
-      m.observe(third, {attributes: true });
     }
+    let m = new MutationObserver(collapsedObserver);
+    m.observe(first, {attributes: true });
+    m.observe(second, {attributes: true });
+    m.observe(third, {attributes: true });
+    // and just in case we are already at the right size, explicitly call the
+    // observer.
+    collapsedObserver(undefined, m);
   }, count);
 }