Updating JSON Schema Compiler to add description field to schemas.

chrome/common/extensions/api/echo_private.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": "echoPrivate",
     "compiler_options": {
       "implemented_in": "chrome/browser/chromeos/extensions/echo_private_api.h"
     },
-    "nodoc": true,
+    "description": "none",
     "platforms": ["chromeos"],
-    "types": [],
     "functions": [
       {
         "name": "getRegistrationCode",
         "description": "Get the group or coupon code from underlying storage.",
         "type": "function",
         "parameters": [
           {
             "name": "type",
             "type": "string",
             "description": "Type of coupon code requested to be read (coupon or group)."
@@ skipping 77 matching lines @@
                 "type": "boolean",
                 "description": "Whether the user consent was given."
               }
             ]
           }
         ]
       }
     ]
   }
 ]