Forward BrowserAccessibilityWin::get_accKeyboardShortcut to the platform node

ui/accessibility/ax_node_data.cc

 // Copyright 2013 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.
 
 #include "ui/accessibility/ax_node_data.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <set>
@@ skipping 796 matching lines @@
         break;
       case AX_ATTR_PLACEHOLDER:
         result += " placeholder=" + value;
         break;
       case AX_ATTR_ROLE:
         result += " role=" + value;
         break;
       case AX_ATTR_ROLE_DESCRIPTION:
         result += " role_description=" + value;
         break;
-      case AX_ATTR_SHORTCUT:
-        result += " shortcut=" + value;
-        break;
       case AX_ATTR_URL:
         result += " url=" + value;
         break;
       case AX_ATTR_NAME:
         result += " name=" + value;
         break;
       case AX_ATTR_VALUE:
         result += " value=" + value;
         break;
       case AX_STRING_ATTRIBUTE_NONE:
@@ skipping 138 matching lines @@
 
   result += " actions=" + ActionsBitfieldToString(actions);
 
   if (!child_ids.empty())
     result += " child_ids=" + IntVectorToString(child_ids);
 
   return result;
 }
 
 }  // namespace ui