adding persistence of min/max state. arguably bug 32148 r=pchen

xpfe/components/bookmarks/resources/bookmarks.xul

@@ -38,7 +38,7 @@
   xmlns:web="http://home.netscape.com/WEB-rdf#"
   xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
   width="630" height="400" screenX="20" screenY="20"
-  persist="width height screenX screenY" orient="vertical"
+  persist="width height screenX screenY sizemode" orient="vertical"
   onload="Init();"
   ondraggesture="return TopLevelDrag(event);"
   windowtype="bookmarks:manager"