TestResultsServer: special handling for aggregate file requests.

Tools/TestResultServer/handlers/testfilehandler.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 185 matching lines @@
         callback_name = self.request.get(PARAM_CALLBACK)
 
         logging.debug(
             "Getting files, master %s, builder: %s, test_type: %s, build_number: %s, name: %s, before: %s.",
             master, builder, test_type, build_number, name, before)
 
         if key:
             json, date = self._get_file_content_from_key(key)
         elif test_list_json:
             json, date = self._get_test_list_json(master, builder, test_type, build_number)
-        elif num_files or not master or not builder or not test_type or not build_number or not name:
+        elif num_files or not master or not builder or not test_type or (not build_number and not JsonResults.is_aggregate_file(name)) or not name:
             limit = int(num_files) if num_files else 100
             self._get_file_list(master, builder, test_type, build_number, name, before, limit, callback_name)
             return
         else:
             json, date = self._get_file_content(master, builder, test_type, build_number, name)
 
         if json:
             json = _replace_jsonp_callback(json, callback_name)
 
         self._serve_json(json, date)
@@ skipping 75 matching lines @@
 
 class UploadForm(webapp2.RequestHandler):
     """Show a form so user can upload a file."""
 
     def get(self):
         template_values = {
             "upload_url": "/testfile/upload",
         }
         self.response.out.write(template.render("templates/uploadform.html",
                                                 template_values))