Clean up some discrepancies in the perf recipe configs

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 326 matching lines @@
                    "'src/third_party/WebKit': 'webkit.git@010'}"),
           'DEPS_interval': {'v8': '002 003 004'.split()},
       },
   ]
 
 
 def _make_test(api, test_data, test_name, platform='linux', extra_config=None):
   basic_test = api.test(test_name)
   basic_test += api.properties(mastername='tryserver.chromium.perf',
                                buildername='linux_perf_bisect',
-                               slavename='dummyslave')
+                               slavename='dummyslave',
+                               buildnumber=123456)
   basic_test += _get_revision_range_step_data(api, test_data)
   for revision_data in test_data:
     for step_data in _get_step_data_for_revision(api, revision_data):
       basic_test += step_data
   if 'win_x64' in platform:
     basic_test += api.properties(bisect_config=_get_config({
         'command': ('src/tools/perf/run_benchmark -v --browser=release_x64'
                     ' smoothness.tough_scrolling_cases'),
         'recipe_tester_name': 'chromium_rel_win7_x64'}))
   elif 'win' in platform:
@@ skipping 99 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)