Backed out changeset bc169301ff47 (bug 1015163) for bc1/bc2 test failures

browser/base/content/browser.xul

@@ -982,6 +982,7 @@
                      tooltiptext="&navbarOverflow.label;"/>
 
       <toolbaritem id="PanelUI-button"
+                   class="chromeclass-toolbar-additional"
                    removable="false">
         <toolbarbutton id="PanelUI-menu-button"
                        class="toolbarbutton-1"

toolkit/content/xul.css

@@ -34,7 +34,7 @@ window[chromehidden~="status"] .chromeclass-status,
 window[chromehidden~="extrachrome"] .chromeclass-extrachrome,
 window[chromehidden~="location"] .chromeclass-location,
 window[chromehidden~="location"][chromehidden~="toolbar"] .chromeclass-toolbar,
-window[chromehidden~="toolbar"] toolbar .chromeclass-toolbar-additional {
+window[chromehidden~="toolbar"] .chromeclass-toolbar-additional {
   display: none;
 }