Use buildbucket to assess build failure.

scripts/slave/recipe_modules/auto_bisect/example.py

Index: scripts/slave/recipe_modules/auto_bisect/example.py
diff --git a/scripts/slave/recipe_modules/auto_bisect/example.py b/scripts/slave/recipe_modules/auto_bisect/example.py
index fc65a1b41d385dcd3e888dd34c64ec2af4f618a7..892eb3a4a52029001f021d95c4f1fb4eab4c74f5 100644
--- a/scripts/slave/recipe_modules/auto_bisect/example.py
+++ b/scripts/slave/recipe_modules/auto_bisect/example.py
@@ -90,17 +90,9 @@ def GenTests(api):
   failed_build_test += api.step_data('gsutil ls', retcode=1)
   failed_build_test += api.step_data('gsutil ls (2)' , retcode=1)
   failed_build_test += api.step_data('gsutil ls (3)' , retcode=1)
-  failed_build_test += api.step_data(
-      'fetch builder state',
-      api.raw_io.output(json.dumps({'cachedBuilds': ['2106']})))
-  failed_build_test += api.step_data(
-      'fetch build details',
-      api.raw_io.output(json.dumps({
-          'results': 2,
-          'properties': [('build_archive_url',
-                          ('gs://chrome-perf/Linux Builder/full-build-linux_'
-                           'a6298e4afedbf2cd461755ea6f45b0ad64222222.zip'))]
-      })))
+  failed_build_test += api.override_step_data(
+      'buildbucket.get', stdout=api.json.output(
+          {'results':[{'build':{'status': 'COMPLETED', 'result': 'FAILED'}}]}))
   yield failed_build_test
 
 
@@ -114,26 +106,8 @@ def GenTests(api):
   delayed_build_test += api.step_data('gsutil ls (5)', retcode=1)
   delayed_build_test += api.step_data('gsutil ls (6)', retcode=1)
   delayed_build_test += api.step_data(
-      'fetch builder state',
-      api.raw_io.output(json.dumps({'cachedBuilds': []})))
-  delayed_build_test += api.step_data(
-      'fetch builder state (2)',
-      api.raw_io.output(json.dumps({'cachedBuilds': ['2106']})))
-  delayed_build_test += api.step_data(
-      'fetch build details',
-      api.raw_io.output(json.dumps({
-          'properties': [('build_archive_url',
-                          ('gs://chrome-perf/Linux Builder/full-build-linux_'
-                           'a6298e4afedbf2cd461755ea6f45b0ad64222222.zip'))]
-      })))
-  delayed_build_test += api.step_data(
-      'fetch build details (2)',
-      api.raw_io.output(json.dumps({
-          'results': 2,
-          'properties': [('build_archive_url',
-                          ('gs://chrome-perf/Linux Builder/full-build-linux_'
-                           'a6298e4afedbf2cd461755ea6f45b0ad64222222.zip'))]
-      })))
+      'buildbucket.get', stdout=api.json.output(
+          {'results':[{'build':{'status': 'PENDING'}}]}))
   yield delayed_build_test
 
   missing_metric_test = _make_test(