Add IDL capability to json_schema_compiler.

tools/json_schema_compiler/json_schema.py

 # 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
 import os.path
 import sys
 
 # We need to get json_minify from the third_party directory.
 # This is similar to what is done in chrome/common/extensions/docs/build.py
 third_party_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),
                                 os.pardir, os.pardir, 'third_party/')
 if third_party_path not in sys.path:
   sys.path.insert(0, third_party_path)
 import json_minify as minify
 
-def LoadJSON(filename):
+def Load(filename):
   with open(filename, 'r') as handle:
     return json.loads(minify.json_minify(handle.read()))