[I-Spy] Add support for rebaselining expectations from the web UI.

chrome/test/functional/ispy/server/app.py

Index: chrome/test/functional/ispy/server/app.py
diff --git a/chrome/test/functional/ispy/server/app.py b/chrome/test/functional/ispy/server/app.py
index efdfd6fba80abbf67e78ee41cec01be1a8c05893..6e908042b9de51e65d1891269fe0c503a4c98ced 100644
--- a/chrome/test/functional/ispy/server/app.py
+++ b/chrome/test/functional/ispy/server/app.py
@@ -2,16 +2,21 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import os
+import sys
 import webapp2
 
+sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir))
 import debug_view_handler
 import image_handler
 import main_view_handler
+import rebaseline_handler
 import update_mask_handler
 
 
 application = webapp2.WSGIApplication(
     [('/update_mask', update_mask_handler.UpdateMaskHandler),
+     ('/rebaseline', rebaseline_handler.RebaselineHandler),
      ('/debug_view', debug_view_handler.DebugViewHandler),
      ('/image', image_handler.ImageHandler),
      ('/', main_view_handler.MainViewHandler)], debug=True)