Use JSON schema compiler in chrome.management code

chrome/common/extensions/api/management.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":"management",
     "types": [
       {
         "id": "IconInfo",
@@ skipping 82 matching lines @@
             }
           },
           "hostPermissions": {
             "description": "Returns a list of host based permissions.",
             "type": "array",
             "items" : {
               "type": "string"
             }
           },
           "installType": {
-            "description": "How the extension was installed (\"admin\", \"development\", \"normal\", \"sideload\", \"other\"). \"admin\" means the extension was installed because of an administrative policy. \"development\" means the extension was loaded unpacked in developer mode. \"normal\" means the extension was installed normally via a .crx file. \"sideload\" means the extension was installed by other software on the machine. \"other\" means the extension was installed by other means.",
-            "type": "string"
+            "description": "How the extension was installed. One of<br><var>admin</var>: The extension was installed because of an administrative policy,<br><var>development</var>: The extension was loaded unpacked in developer mode,<br><var>normal</var>: The extension was installed normally via a .crx file,<br><var>sideload</var>: The extension was installed by other software on the machine,<br><var>other</var>: The extension was installed by other means.",
+            "type": "string",
+            "enum": ["admin", "development", "normal", "sideload", "other"]
           }
         }
       }
     ],
     "functions": [
       {
         "name": "getAll",
         "description": "Returns a list of information about installed extensions and apps.",
         "parameters": [
           {
@@ skipping 175 matching lines @@
       },
       {
         "name": "onDisabled",
         "description": "Fired when an app or extension has been disabled",
         "type": "function",
         "parameters": [{"name": "info", "$ref":"ExtensionInfo"}]
       }
     ]
   }
 ]