Cross-repo recipe package system.

scripts/slave/recipe_modules/chromium_tests/api.py

 # Copyright 2014 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 contextlib
 import copy
+import itertools
 import json
 
 from infra.libs.infra_types import freeze, thaw
 from recipe_engine import recipe_api
 from recipe_engine import util as recipe_util
 
 from . import builders
 from . import steps
 
 
@@ skipping 476 matching lines @@
     try:
       self.m.chromium.runhooks(name='runhooks (without patch)')
     except self.m.step.StepFailure:
       self.m.tryserver.set_transient_failure_tryjob_result()
       raise
 
   def run_tests_and_deapply_as_needed(self, mastername, api, tests,
                                       bot_update_step):
     def deapply_patch_fn(failing_tests):
       self.deapply_patch(bot_update_step)
-      compile_targets = list(self.m.itertools.chain(
+      compile_targets = list(itertools.chain(
           *[t.compile_targets(api) for t in failing_tests]))
       if compile_targets:
         # Remove duplicate targets.
         compile_targets = sorted(set(compile_targets))
         has_failing_swarming_tests = [
             t for t in failing_tests if t.uses_swarming]
         if has_failing_swarming_tests:
           self.m.isolate.clean_isolated_files(self.m.chromium.output_dir)
         try:
           self.m.chromium.compile(
@@ skipping 187 matching lines @@
   def get_compile_targets_for_scripts(self):
     return self.m.python(
         name='get compile targets for scripts',
         script=self.m.path['checkout'].join(
             'testing', 'scripts', 'get_compile_targets.py'),
         args=[
             '--output', self.m.json.output(),
             '--',
         ] + self.get_common_args_for_scripts(),
         step_test_data=lambda: self.m.json.test_api.output({}))