Make flakiness dashboard links to googlesource work post git migration.

appengine_module/test_results/main.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 13 matching lines @@
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 import webapp2
 
 from appengine_module.test_results.handlers import buildershandler
 from appengine_module.test_results.handlers import builderstatehandler
 from appengine_module.test_results.handlers import menu
+from appengine_module.test_results.handlers import redirector
 from appengine_module.test_results.handlers import testfilehandler
 
 routes = [
     ('/testfile/delete', testfilehandler.DeleteFile),
     ('/testfile/upload', testfilehandler.Upload),
     ('/testfile/uploadform', testfilehandler.UploadForm),
     ('/testfile/?', testfilehandler.GetFile),
     ('/builders', buildershandler.GetBuilders),
     ('/updatebuilders', buildershandler.UpdateBuilders),
     ('/builderstate', builderstatehandler.GetBuilderState),
     ('/updatebuilderstate', builderstatehandler.Update),
     ('/', menu.Menu),
+    webapp2.Route('/revision_range', webapp2.RedirectHandler, defaults={
+        '_uri': redirector.get_googlesource_url}),
 ]
 
 app = webapp2.WSGIApplication(routes, debug=True)