Docserver: there is only one.

chrome/common/extensions/docs/server2/subversion_file_system.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 posixpath
 import xml.dom.minidom as xml
 from xml.parsers.expat import ExpatError
 
 from appengine_url_fetcher import AppEngineUrlFetcher
 from docs_server_utils import StringIdentity
@@ skipping 36 matching lines @@
       else:
         self._value[path] = result.content
     if self._error is not None:
       raise self._error
     return self._value
 
 class SubversionFileSystem(FileSystem):
   '''Class to fetch resources from src.chromium.org.
   '''
   @staticmethod
-  def Create(branch, revision=None):
+  def Create(branch='trunk', revision=None):
     if branch == 'trunk':
       svn_path = 'trunk/src/%s' % svn_constants.EXTENSIONS_PATH
     else:
-      svn_path = 'branches/%s/src/%s' % (branch,
-                                         svn_constants.EXTENSIONS_PATH)
+      svn_path = 'branches/%s/src/%s' % (branch, svn_constants.EXTENSIONS_PATH)
     return SubversionFileSystem(
         AppEngineUrlFetcher('%s/%s' % (url_constants.SVN_URL, svn_path)),
         AppEngineUrlFetcher('%s/%s' % (url_constants.VIEWVC_URL, svn_path)),
         svn_path,
         revision=revision)
 
   def __init__(self, file_fetcher, stat_fetcher, svn_path, revision=None):
     self._file_fetcher = file_fetcher
     self._stat_fetcher = stat_fetcher
     self._svn_path = svn_path
@@ skipping 87 matching lines @@
     if path.endswith('/'):
       return stat_info
     if filename not in stat_info.child_versions:
       raise FileNotFoundError('%s was not in child versions' % filename)
     return StatInfo(stat_info.child_versions[filename])
 
   def GetIdentity(self):
     # NOTE: no revision here, consider it just an implementation detail of the
     # file version that is handled by Stat.
     return '@'.join((self.__class__.__name__, StringIdentity(self._svn_path)))