Docserver: Use GitilesFileSystem instead of SubversionFileSystem

chrome/common/extensions/docs/server2/host_file_system_iterator.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.
 
 
 class HostFileSystemIterator(object):
   '''Provides methods for iterating through host file systems, in both
   ascending (oldest to newest version) and descending order.
   '''
 
   def __init__(self, file_system_provider, branch_utility):
     self._file_system_provider = file_system_provider
     self._branch_utility = branch_utility
 
   def _ForEach(self, channel_info, callback, get_next):
     '''Iterates through a sequence of file systems defined by |get_next| until
     |callback| returns False, or until the end of the sequence of file systems
     is reached. Returns the BranchUtility.ChannelInfo of the last file system
     for which |callback| returned True.
     '''
     last_true = None
     while channel_info is not None:
-      if channel_info.branch == 'trunk':
-        file_system = self._file_system_provider.GetTrunk()
+      if channel_info.branch == 'master':
+        file_system = self._file_system_provider.GetMaster()
       else:
         file_system = self._file_system_provider.GetBranch(channel_info.branch)
       if not callback(file_system, channel_info):
         return last_true
       last_true = channel_info
       channel_info = get_next(channel_info)
     return last_true
 
   def Ascending(self, channel_info, callback):
     return self._ForEach(channel_info, callback, self._branch_utility.Newer)
 
   def Descending(self, channel_info, callback):
     return self._ForEach(channel_info, callback, self._branch_utility.Older)