Updating JSON Schema Compiler to add description field to schemas.

chrome/common/extensions/api/networking_private.json

 // Copyright (c) 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":"networkingPrivate",
+    "description": "none",
     "compiler_options": {
       "implemented_in": "chrome/browser/chromeos/extensions/networking_private_api.h"
     },
     "platforms": ["chromeos"],
     "types" : [
       {
         "id": "NetworkProperties",
         "type": "object",
         "additionalProperties": { "type": "any" }
       },
@@ skipping 288 matching lines @@
           {
             "name": "changes",
             "type": "array",
             "items": { "type": "string" }
           }
         ]
       }
     ]
   }
 ]