Extensions Docs Server: Generalize $ref's to work for any schema node

chrome/common/extensions/docs/server2/api_list_data_source.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 logging
 import os
 
 from file_system import FileNotFoundError
 import compiled_file_system as compiled_fs
 import third_party.json_schema_compiler.model as model
@@ skipping 50 matching lines @@
         'extensions': self._GetAPIsInSubdirectory(api_names, 'extensions')
       }
 
     def Create(self):
       return APIListDataSource(self._cache, self._api_path)
 
   def __init__(self, cache, api_path):
     self._cache = cache
     self._api_path = api_path
 
-  def __getitem__(self, key):
-    return self.get(key)
+  def GetAllNames(self):
+    names = []
+    for i in ['apps', 'extensions']:
+      for j in ['chrome', 'experimental']:
+       names.extend(self.get(i).get(j))
+    return [api_name['name'] for api_name in names]
 
   def get(self, key):
     try:
       return self._cache.GetFromFileListing(self._api_path)[key]
     except FileNotFoundError as e:
       raise ValueError('%s: Error listing files for "%s".' % (e, key))