Add concept of bot config and test spec database (BotConfigAndTestDB).

scripts/slave/recipes/bisection/android_bisect.py

Index: scripts/slave/recipes/bisection/android_bisect.py
diff --git a/scripts/slave/recipes/bisection/android_bisect.py b/scripts/slave/recipes/bisection/android_bisect.py
index 3fd04c17da729a19708875ecc358070f0cf5faea..6a9eb0cbce2ad8c852b35378cc43fc3cb258d273 100644
--- a/scripts/slave/recipes/bisection/android_bisect.py
+++ b/scripts/slave/recipes/bisection/android_bisect.py
@@ -108,8 +108,11 @@ def RunSteps(api, mastername, buildername):
   update_step = api.bot_update.ensure_checkout()
   api.chromium_android.clean_local_files()
 
+  bot_db = api.chromium_tests.create_bot_db_from_master_dict(
+      mastername, master_dict)
+
   api.auto_bisect.start_try_job(api, update_step=update_step,
-                                master_dict=master_dict)
+                                bot_db=bot_db)
 
 def GenTests(api):
   config_json_main = {