Allow a single trybot to mirror multiple waterfall bots.

scripts/slave/recipe_modules/auto_bisect/example.py

 # Copyright 2015 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.
 
 import json
 
 DEPS = [
     'auto_bisect',
     'chromium_tests',
     'recipe_engine/json',
@@ skipping 43 matching lines @@
   #  Abort unnecesary jobs
   #  Print results (may be done in a unit test)
 
   # Test runner for classic bisect script; calls bisect script in recipe
   # wrapper with extra_src and path_to_config to override default behavior.
   if api.properties.get('mastername'):
     # TODO(akuegel): Load the config explicitly instead of relying on the
     # builders.py entries in chromium_tests.
     mastername = api.properties.get('mastername')
     buildername = api.properties.get('buildername')
-    api.chromium_tests.configure_build(mastername, buildername)
-    api.chromium_tests.prepare_checkout(mastername, buildername)
+    bot_desc = api.chromium_tests.create_bot_desc(mastername, buildername)
+    api.chromium_tests.configure_build(bot_desc)
+    api.chromium_tests.prepare_checkout(bot_desc)
     api.auto_bisect.run_bisect_script('dummy_extra_src', '/dummy/path/')
 
 
 def GenTests(api):
   dummy_gs_location = ('gs://chrome-perf/bisect-results/'
                        'a6298e4afedbf2cd461755ea6f45b0ad64222222-test.results')
   wait_for_any_output = {
       'completed': [
           {
               'type': 'gs',
@@ skipping 369 matching lines @@
           yield api.step_data(step_name, stdout=api.raw_io.output(file_hash))
         step_name = 'Expanding revision range for revision %s on depot %s'
         step_name %= (interval[-1], depot_name)
         stdout = api.json.output([(r, 0) for r in interval[:-1]])
         yield api.step_data(step_name, stdout=stdout)
 
     if 'cl_info' in revision_data:
       step_name = 'Reading culprit cl information.'
       stdout = api.json.output(revision_data['cl_info'])
       yield api.step_data(step_name, stdout=stdout)