[Extensions] Convert APIs to use movable types [3]

chrome/common/extensions/api/context_menus.json

 // 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.
 
 [
   {
     "namespace": "contextMenus",
     "description": "Use the <code>chrome.contextMenus</code> API to add items to Google Chrome's context menu. You can choose what types of objects your context menu additions apply to, such as images, hyperlinks, and pages.",
+    "compiler_options": {"use_movable_types": true},
     "properties": {
       "ACTION_MENU_TOP_LEVEL_LIMIT": {
         "value": 6,
         "description": "The maximum number of top level extension items that can be added to an extension action context menu. Any items beyond this limit will be ignored."
       }
     },
     "types": [
       {
         "id": "ContextType",
         "type": "string",
@@ skipping 231 matching lines @@
     ],
     "events": [
       {
         "name": "onClicked",
         "type": "function",
         "$ref": "contextMenusInternal.onClicked"
       }
     ]
   }
 ]