Make sure the <input type="hidden"> never takes up space by setting it

to use display:none (now that it'll submit fine with that setting).
Bug 109847, r=jkeiser, sr=attinasi


git-svn-id: svn://10.0.0.236/trunk@109002 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/layout/html/document/src/forms.css

@@ -225,8 +225,7 @@ select[disabled]:-moz-display-comboboxcontrol-frame {
 
 /* hidden inputs */
 input[type="hidden"] {
-  border: none;
-  visibility: hidden;
+  display: none;
   -moz-binding: none;
 }
 

mozilla/layout/style/forms.css

@@ -225,8 +225,7 @@ select[disabled]:-moz-display-comboboxcontrol-frame {
 
 /* hidden inputs */
 input[type="hidden"] {
-  border: none;
-  visibility: hidden;
+  display: none;
   -moz-binding: none;
 }