Docserver: Add support for viewing docs with a codereview patch applied

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 appengine_wrappers import webapp
 from cron_servlet import CronServlet
 from render_servlet import RenderServlet
+from patch_servlet import PatchServlet
 from servlet import Request
 
 _SERVLETS = {
   'cron': CronServlet,
+  'patch': PatchServlet,
 }
 
 class Handler(webapp.RequestHandler):
   def __init__(self, request, response):
     super(Handler, self).__init__(request, response)
 
   def _RedirectSpecialCases(self, path):
     if not path or path == 'index.html':
       self.redirect('http://developer.google.com/chrome')
       return True
@@ skipping 25 matching lines @@
         path.insert(0, channel)
     new_url += '/'.join(path)
     self.redirect(new_url)
     return True
 
   def get(self):
     path, request, response = (self.request.path.lstrip('/'),
                                self.request,
                                self.response)
 
-    if path in ['favicon.ico', 'robots.txt']:
-      response.set_status(404)
-      return
-
     if self._RedirectSpecialCases(path):
       return
     if self._RedirectFromCodeDotGoogleDotCom(path):
       return
 
     if path.startswith('_'):
       servlet_path = path[1:]
       if servlet_path.find('/') == -1:
         servlet_path += '/'
       servlet_name, servlet_path = servlet_path.split('/', 1)
       servlet = _SERVLETS.get(servlet_name)
       if servlet is None:
         response.out.write('"%s" servlet not found' %  servlet_path)
         response.set_status(404)
         return
     else:
       servlet_path = path
       servlet = RenderServlet
 
     servlet_response = servlet(Request(servlet_path, request.headers)).Get()
 
     response.out.write(servlet_response.content.ToString())
     response.headers.update(servlet_response.headers)
     response.status = servlet_response.status