Fix bot_update api rename.

scripts/slave/recipe_modules/chromium_tests/steps.py

 # Copyright 2014 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 re
 import string
 
 
 class Test(object):
   """
@@ skipping 827 matching lines @@
           api, suffix,test_filter=test_filter)
     finally:
       step_result = api.step.active_result
       # Only upload test results if we have gtest results.
       if (self._upload_test_results and
           hasattr(step_result, 'test_utils') and
           hasattr(step_result.test_utils, 'gtest_results')):
         gtest_results = getattr(step_result.test_utils, 'gtest_results', None)
         if gtest_results and gtest_results.raw:
           parsed_gtest_data = gtest_results.raw
-          chrome_revision_cp = api.bot_update.properties.get(
+          chrome_revision_cp = api.bot_update.last_returned_properties.get(
               'got_revision_cp', 'x@{#0}')
           chrome_revision = str(api.commit_position.parse_revision(
               chrome_revision_cp))
           api.test_results.upload(
               api.json.input(parsed_gtest_data),
               chrome_revision=chrome_revision,
               test_type=step_result.step['name'],
               test_results_server='test-results.appspot.com')
 
 
@@ skipping 1009 matching lines @@
   def run(self, api, suffix, test_filter=None):
     api.chromium_android.coverage_report(upload=False)
     api.chromium_android.get_changed_lines_for_revision()
     api.chromium_android.incremental_coverage_report()
 
 
 GOMA_TESTS = [
   GTestTest('base_unittests'),
   GTestTest('content_unittests'),
 ]