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

scripts/slave/recipes/findit/chromium/test.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
 
 from recipe_engine.config import Dict
 from recipe_engine.recipe_api import Property
 
 
@@ skipping 44 matching lines @@
   SKIPPED = 'skipped'  # A commit doesn't impact the test.
   PASSED = 'passed'  # The compile or test passed.
   FAILED = 'failed'  # The compile or test failed.
 
 
 def _compile_and_test_at_revision(api, target_mastername, target_buildername,
                                   target_testername, revision, requested_tests):
   results = {}
   with api.step.nest('test %s' % str(revision)):
     # Checkout code at the given revision to recompile.
-    bot_update_step, master_dict, _ = \
+    bot_update_step, bot_db = \
         api.chromium_tests.prepare_checkout(
             target_mastername,
             target_buildername,
             root_solution_revision=revision)
 
     # Figure out which test steps to run.
     all_tests = api.chromium_tests.tests_for_builder(
         target_mastername,
         target_testername,  # If not tester, this is same as target_buildername.
         bot_update_step,
-        master_dict,
+        bot_db,
         override_bot_type='builder_tester')
 
     tests_to_run = [test for test in all_tests if test.name in requested_tests]
 
     # Figure out which targets to compile.
     compile_targets = []
     for test in tests_to_run:
       compile_targets.extend(test.compile_targets(api))
     compile_targets = sorted(set(compile_targets))
 
     if compile_targets:
       api.chromium_tests.compile_specific_targets(
           target_mastername,
           target_buildername,
           bot_update_step,
-          master_dict,
+          bot_db,
           compile_targets,
           tests_including_triggered=tests_to_run,
           mb_mastername=target_mastername,
           mb_buildername=target_buildername,
           override_bot_type='builder_tester')
 
     # Run the tests.
     with api.chromium_tests.wrap_chromium_tests(
         target_mastername, tests_to_run):
       failed_tests = api.test_utils.run_tests(
@@ skipping 228 matching lines @@
               ],
           },
       })) +
       api.override_step_data(
           'test r1.gl_tests (r1)',
           simulated_gtest_output(
               failed_test_names=['Test.One', 'Test.Two'],
               passed_test_names=['Test.Three'])
       )
   )