Docserver: there is only one.

chrome/common/extensions/docs/server2/handler.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.
 
 from branch_utility import BranchUtility
 from cron_servlet import CronServlet
 from patch_servlet import PatchServlet
 from instance_servlet import InstanceServlet
 from servlet import Servlet, Request, Response
 
@@ skipping 45 matching lines @@
 
     new_host = 'http://developer.chrome.com'
 
     # switch to https if necessary
     if host.startswith('https'):
       new_host = new_host.replace('http', 'https', 1)
 
     new_path = path.split('/')
     if len(new_path) > 0 and new_path[0] == 'chrome':
       new_path.pop(0)
+    # We don't do multi channel anymore, but leave this code around for legacy.
     for channel in BranchUtility.GetAllChannelNames():
       if channel in new_path:
         position = new_path.index(channel)
         new_path.pop(position)
         new_path.insert(0, channel)
     return Response.Redirect('/'.join([new_host] + new_path))