Fix bot_update api rename.

scripts/slave/recipe_modules/v8/api.py

 # Copyright 2013 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 argparse
 import datetime
 import random
 import re
 import urllib
 
@@ skipping 155 matching lines @@
         patch_root=[None, 'v8'][bool(self.m.tryserver.is_tryserver)],
         output_manifest=True,
         with_branch_heads=needs_branch_heads,
         patch_project_roots={'v8': []},
         **kwargs)
 
     assert update_step.json.output['did_run']
 
     # Bot_update maintains the properties independent of the UI
     # presentation.
-    self.revision = self.m.bot_update.properties['got_revision']
-    self.revision_cp = self.m.bot_update.properties['got_revision_cp']
+    self.revision = self.m.bot_update.last_returned_properties['got_revision']
+    self.revision_cp = (
+        self.m.bot_update.last_returned_properties['got_revision_cp'])
     self.revision_number = str(self.m.commit_position.parse_revision(
         self.revision_cp))
 
     return update_step
 
   def calculate_patch_base(self):
     """Calculates the latest commit hash that fits the patch."""
     url = ('https://codereview.chromium.org/download/issue%s_%s.diff' %
            (self.m.properties['issue'], self.m.properties['patchset']))
     step_result = self.m.python(
@@ skipping 887 matching lines @@
   def report_culprits(self, culprit_range):
     assert culprit_range
     if len(culprit_range) > 1:
       text = 'Suspecting multiple commits'
     else:
       text = 'Suspecting %s' % culprit_range[0][:8]
 
     step_result = self.m.step(text, cmd=None)
     for culprit in culprit_range:
       step_result.presentation.links[culprit[:8]] = COMMIT_TEMPLATE % culprit