Fix the label of the altgr key on Romanian keyboard overlay.

chrome/browser/resources/keyboard_overlay_data.js

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var keyboardOverlayData = {
   "inputMethodIdToOverlayId": {
     "m17n:ar:kbd": "ar",
     "m17n:fa:isiri": "ar",
     "m17n:hi:itrans": "hi",
     "m17n:th:kesmanee": "th",
@@ skipping 10298 matching lines @@
         },
         "7D": {
           "p5": "E2"
         },
         "E0 1D": {
           "format": "smaller",
           "label": "ctrl"
         },
         "E0 38": {
           "format": "smaller",
-          "label": "alt"
+          "label": "alt gr"
         },
         "E0 48": {
           "label": "up"
         },
         "E0 4B": {
           "label": "left"
         },
         "E0 4D": {
           "label": "right"
         },
@@ skipping 5529 matching lines @@
     "up<>ALT<>CTRL": "keyboardOverlayHome",
     "v<>CTRL": "keyboardOverlayPaste",
     "v<>CTRL<>SHIFT": "keyboardOverlayPasteAsPlainText",
     "w<>CTRL": "keyboardOverlayCloseTab",
     "w<>CTRL<>SHIFT": "keyboardOverlayCloseWindow",
     "x<>CTRL": "keyboardOverlayCut",
     "z<>ALT<>CTRL": "keyboardOverlayToggleAccessibilityFeatures",
     "z<>CTRL": "keyboardOverlayUndo"
   }
 };