Docserver: SidenavDataSource refactor, transition to DataSourceRegistry

chrome/common/extensions/docs/server2/manifest_data_source.py

 # Copyright 2013 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
 
 from data_source import DataSource
 import features_utility
 from manifest_features import CreateManifestFeatures, ConvertDottedKeysToNested
 from third_party.json_schema_compiler.json_parse import Parse
@@ skipping 81 matching lines @@
         annotate(level, item['children'])
     if features:
       features[-1]['is_last'] = True
 
   annotate('required', features)
   return features
 
 class ManifestDataSource(DataSource):
   '''Provides access to the properties in manifest features.
   '''
-  def __init__(self, server_instance):
+  def __init__(self, server_instance, _):
     self._manifest_path = server_instance.manifest_json_path
     self._features_path = server_instance.manifest_features_path
     self._file_system = server_instance.host_file_system
     self._cache = server_instance.compiled_host_fs_factory.Create(
         self._CreateManifestData, ManifestDataSource)
 
   def _CreateManifestData(self, _, content):
     '''Combine the contents of |_manifest_path| and |_features_path| and filter
     the results into lists specific to apps or extensions for templates. Marks
     up features with annotations.
@@ skipping 13 matching lines @@
       'apps': for_templates(manifest_features, 'app'),
       'extensions': for_templates(manifest_features, 'extension')
     }
 
   def Cron(self):
     self._cache.GetFromFile(self._features_path)
     self._file_system.ReadSingle(self._manifest_path)
 
   def get(self, key):
     return self._cache.GetFromFile(self._features_path)[key]