Docserver: Factor SamplesModel out of SamplesDataSource

chrome/common/extensions/docs/server2/data_source_registry.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.
 
 from api_data_source import APIDataSource
 from api_list_data_source import APIListDataSource
 from data_source import DataSource
 from manifest_data_source import ManifestDataSource
 from permissions_data_source import PermissionsDataSource
+from samples_data_source import SamplesDataSource
 from sidenav_data_source import SidenavDataSource
 from strings_data_source import StringsDataSource
 from template_data_source import (
     ArticleDataSource, IntroDataSource, PartialDataSource)
 from whats_new_data_source import WhatsNewDataSource
 
 
 _all_data_sources = {
   'apis': APIDataSource,
   'api_list': APIListDataSource,
   'articles': ArticleDataSource,
   'intros': IntroDataSource,
   'manifest_source': ManifestDataSource,
   'partials': PartialDataSource,
   'permissions': PermissionsDataSource,
+  'samples': SamplesDataSource,
   'sidenavs': SidenavDataSource,
   'strings': StringsDataSource,
   'whatsNew' : WhatsNewDataSource
 }
 
 assert all(issubclass(cls, DataSource)
            for cls in _all_data_sources.itervalues())
 
 def CreateDataSources(server_instance, request=None):
   '''Create a dictionary of initialized DataSources. DataSources are
   initialized with |server_instance| and |request|. If the DataSources are
   going to be used for Cron, |request| should be omitted.
 
   The key of each DataSource is the name the template system will use to access
   the DataSource.
   '''
   return dict((name, cls(server_instance, request))
               for name, cls in _all_data_sources.iteritems())