Bug 579769 - Remove check attribute when customizing toolbars

r=dao a=beltzner

toolkit/content/customizeToolbar.js

@@ -243,6 +243,9 @@ function unwrapToolbarItems()
     if (paletteItem.hasAttribute("itemdisabled"))
       toolbarItem.disabled = true;
 
+    if (paletteItem.hasAttribute("itemchecked"))
+      toolbarItem.checked = true;
+
     if (paletteItem.hasAttribute("itemcommand")) {
       let commandID = paletteItem.getAttribute("itemcommand");
       toolbarItem.setAttribute("command", commandID);
@@ -491,6 +494,11 @@ function cleanupItemForToolbar(aItem, aWrapper)
     aItem.removeAttribute("command");
   }
 
+  if (aItem.checked) {
+    aWrapper.setAttribute("itemchecked", "true");
+    aItem.checked = false;
+  }
+
   if (aItem.disabled) {
     aWrapper.setAttribute("itemdisabled", "true");
     aItem.disabled = false;