Change the descriptions for Alt+number on the keyboard overlay.

chrome/browser/resources/chromeos/keyboard_overlay_data.js

 // Copyright (c) 2012 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 15752 matching lines @@
     '+<>CTRL<>SHIFT': 'keyboardOverlayZoomIn',
     '-<>ALT': 'keyboardOverlayMinimizeWindow',
     '-<>CTRL': 'keyboardOverlayZoomOut',
     '-<>CTRL<>SHIFT': 'keyboardOverlayZoomOut',
     '.<>CTRL<>SHIFT': 'keyboardOverlayToggleSpeechInput',
     '/<>ALT<>CTRL': 'keyboardOverlayViewKeyboardOverlay',
     '/<>ALT<>CTRL<>SHIFT': 'keyboardOverlayViewKeyboardOverlay',
     '/<>CTRL': 'keyboardOverlayHelp',
     '/<>CTRL<>SHIFT': 'keyboardOverlayHelp',
     '0<>CTRL': 'keyboardOverlayResetZoom',
-    '1<>ALT': 'keyboardOverlayActivateWindow1',
+    '1<>ALT': 'keyboardOverlayActivateLauncherItem1',
     '1<>CTRL': 'keyboardOverlayActivateTab1',
-    '2<>ALT': 'keyboardOverlayActivateWindow2',
+    '2<>ALT': 'keyboardOverlayActivateLauncherItem2',
     '2<>CTRL': 'keyboardOverlayActivateTab2',
-    '3<>ALT': 'keyboardOverlayActivateWindow3',
+    '3<>ALT': 'keyboardOverlayActivateLauncherItem3',
     '3<>CTRL': 'keyboardOverlayActivateTab3',
-    '4<>ALT': 'keyboardOverlayActivateWindow4',
+    '4<>ALT': 'keyboardOverlayActivateLauncherItem4',
     '4<>CTRL': 'keyboardOverlayActivateTab4',
-    '5<>ALT': 'keyboardOverlayActivateWindow5',
+    '5<>ALT': 'keyboardOverlayActivateLauncherItem5',
     '5<>CTRL': 'keyboardOverlayActivateTab5',
-    '6<>ALT': 'keyboardOverlayActivateWindow6',
+    '6<>ALT': 'keyboardOverlayActivateLauncherItem6',
     '6<>CTRL': 'keyboardOverlayActivateTab6',
-    '7<>ALT': 'keyboardOverlayActivateWindow7',
+    '7<>ALT': 'keyboardOverlayActivateLauncherItem7',
     '7<>CTRL': 'keyboardOverlayActivateTab7',
-    '8<>ALT': 'keyboardOverlayActivateWindow8',
+    '8<>ALT': 'keyboardOverlayActivateLauncherItem8',
     '8<>CTRL': 'keyboardOverlayActivateTab8',
-    '9<>ALT': 'keyboardOverlayActivateLastWindow',
+    '9<>ALT': 'keyboardOverlayActivateLastLauncherItem',
     '9<>CTRL': 'keyboardOverlayActivateLastTab',
     'ALT<>SHIFT': 'keyboardOverlayCycleThroughInputMethods',
     '[<>ALT': 'keyboardOverlayDockWindowLeft',
     ']<>ALT': 'keyboardOverlayDockWindowRight',
     'a<>CTRL': 'keyboardOverlaySelectAll',
     'arrowkeys<>CTRL': 'keyboardOverlayWordMove',
     'b<>ALT<>SHIFT': 'keyboardOverlayFocusBookmarks',
     'b<>CTRL<>SHIFT': 'keyboardOverlayToggleBookmarkBar',
     'back<>CTRL': 'keyboardOverlayFocusPreviousPane',
     'backspace': 'keyboardOverlayGoBack',
@@ skipping 65 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'
   }
 };