Add chrome.virtualKeyboardPrivate.setHotrodKeyboard api

extensions/common/api/virtual_keyboard_private.json

 // 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.
 
 [
   {
     "namespace": "virtualKeyboardPrivate",
     "compiler_options": {
       "implemented_in": "extensions/browser/api/virtual_keyboard_private/virtual_keyboard_private_api.h"
     },
@@ skipping 88 matching lines @@
         "parameters": [
           { "type": "function",
             "name": "callback",
             "optional": true,
             "description": "Called when the keyboard is hidden.",
             "parameters": []
           }
         ]
       },
       {
+        "name": "setHotrodKeyboard",
+        "type": "function",
+        "description": "Sets the state of the hotrod virtual keyboard. This API should only be used by hotrod.",
+        "parameters": [
+          {
+            "type": "boolean",
+            "name": "enable"
+          }
+        ]
+      },
+      {
         "name": "lockKeyboard",
         "type": "function",
         "description": "Sets the lock state of the virtual keyboard. A locked keyboard remains visible even after a text area loses input focus.",
         "parameters": [
           {
             "type": "boolean",
             "name": "lock"
           }
         ]
       },
@@ skipping 105 matching lines @@
           {
             "name": "bounds",
             "description": "The virtual keyboard bounds",
             "$ref": "Bounds"
           }
         ]
       }
     ]
   }
 ]