Bug 91571: Closing popup window from menu crashes Mac.

r=saari, sr=hyatt.

Problem here was that the urlbar, which is hidden for a chrome-less dialog, got focussed which on Mac somehow results in a crash when you try to close the window. A nice side-effect of this fix is that accelerator keys now work again in popups without having to click in them first.

xpfe/browser/resources/content/navigator.js

@@ -355,7 +355,8 @@ function Startup()
     }
 
     // Focus the content area if the caller instructed us to.
-    if ("arguments" in window && window.arguments.length >= 3 && window.arguments[2] == true)
+    if ("arguments" in window && window.arguments.length >= 3 && window.arguments[2] == true ||
+        !window.locationbar.visible)
       _content.focus();
     else
       gURLBar.focus();