Updating JSON Schema Compiler to add description field to schemas.

tools/json_schema_compiler/json_schema_test.py

 #!/usr/bin/env python
 # 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.
 
 import json_schema
 import json_schema_test
 import unittest
 
 class JsonSchemaUnittest(unittest.TestCase):
   def testNocompile(self):
     compiled = [
       {
         "namespace": "compile",
+        "description": "The compile API.",
         "functions": [],
         "types":     {}
       },
 
       {
         "namespace": "functions",
+        "description": "The functions API.",
         "functions": [
           {
             "id": "two"
           },
           {
             "id": "four"
           }
         ],
 
         "types": {
           "one": { "key": "value" }
         }
       },
 
       {
         "namespace": "types",
+        "description": "The types API.",
         "functions": [
           { "id": "one" }
         ],
         "types": {
           "two": {
             "key": "value"
           },
           "four": {
             "key": "value"
           }
         }
       },
 
       {
         "namespace": "nested",
+        "description": "The nested API.",
         "properties": {
           "sync": {
             "functions": [
               {
                 "id": "two"
               },
               {
                 "id": "four"
               }
             ],
             "types": {
               "two": {
                 "key": "value"
               },
               "four": {
                 "key": "value"
               }
             }
           }
         }
       }
     ]
 
     schema = json_schema.CachedLoad('test/json_schema_test.json')
     self.assertEquals(compiled, json_schema.DeleteNodes(schema, 'nocompile'))
 
 if __name__ == '__main__':
   unittest.main()