Bug 1150052: move up weak reference resolving for garbage collected chatboxes to fix JS errors making Loop cry. r=mixedpuppy

--HG-- extra : rebase_source : e528a25426b61bea710337a02448e93c2ad2bde6
2015-05-11 11:57:20 +02:00 · 2015-05-11 11:57:20 +02:00 · 20cbd530a5
--- a/browser/base/content/socialchat.xml
+++ b/browser/base/content/socialchat.xml
@ -555,8 +555,7 @@
        <parameter name="aCallback"/>
        <body><![CDATA[
          let cb = this.chatboxForURL.get(aURL);
-          if (cb) {
-            cb = cb.get();
+          if (cb && cb = cb.get()) {
            // A chatbox is still alive to us when it's parented and still has
            // content.
            if (cb.parentNode && cb.contentWindow) {