Bug 935508 follow-up - Put back the |height:100%| on ::-moz-number-wrapper in forms.css.

--HG--
extra : rebase_source : 191dad15f5c4e00146b29dace462eeb5fcbba878

layout/style/forms.css

@@ -897,6 +897,7 @@ input[type=number]::-moz-number-wrapper {
   display: flex;
   float: none !important;
   position: static !important;
+  height: 100%;
 }
 
 input[type=number]::-moz-number-text {