Docserver: Add commit history and _reset_commit servlet

chrome/common/extensions/docs/server2/servlet.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 RequestHeaders(object):
   '''A custom dictionary impementation for headers which ignores the case
   of requests, since different HTTP libraries seem to mangle them.
   '''
   def __init__(self, dict_):
@@ skipping 78 matching lines @@
     return Response(content=content, headers=headers, status=200)
 
   @staticmethod
   def Redirect(url, permanent=False):
     '''Returns a redirect (301 or 302) response.
     '''
     status = 301 if permanent else 302
     return Response(headers={'Location': url}, status=status)
 
   @staticmethod
+  def BadRequest(content, headers=None):
+    '''Returns a bad request (400) response.
+    '''
+    return Response(content=content, headers=headers, status=400)
+
+  @staticmethod
   def NotFound(content, headers=None):
     '''Returns a not found (404) response.
     '''
     return Response(content=content, headers=headers, status=404)
 
   @staticmethod
   def NotModified(content, headers=None):
     return Response(content=content, headers=headers, status=304)
 
   @staticmethod
@@ skipping 51 matching lines @@
     return repr(self)
 
 class Servlet(object):
   def __init__(self, request):
     self._request = request
 
   def Get(self):
     '''Returns a Response.
     '''
     raise NotImplemented()