Updating JSON Schema Compiler to add description field to schemas.

chrome/common/extensions/api/devtools/network.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": "devtools.network",
+    "description": "Use the <code>chrome.devtools.network</code> API to retrieve the information about network requests displayed by the Developer Tools in the Network panel.",
     "nocompile": true,
     "types": [
       {
         "id": "Request",
         "type": "object",
         "description": "Represents a network request for a document resource (script, image and so on). See HAR Specification for reference.",
         "functions": [
           {
             "name": "getContent",
             "type": "function",
@@ skipping 60 matching lines @@
           {
             "name": "url",
             "type": "string",
             "description": "URL of the new page."
           }
         ]
       }
     ]
   }
 ]