De-duplicate steps between chromium and chromium_trybot recipes

scripts/slave/recipe_modules/chromium/api.py

 # Copyright 2013 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.
 
 from slave import recipe_api
 from slave import recipe_util
 
 from . import builders
+from . import steps
 
 
 class TestLauncherFilterFileInputPlaceholder(recipe_util.Placeholder):
   def __init__(self, api, tests):
     self.raw = api.m.raw_io.input('\n'.join(tests))
     super(TestLauncherFilterFileInputPlaceholder, self).__init__()
 
   def render(self, test):
     result = self.raw.render(test)
     if not test.enabled:  # pragma: no cover
@@ skipping 27 matching lines @@
         else self.m.platform.bits),
 
       'BUILD_CONFIG': self.m.properties.get('build_config', 'Release')
     }
 
   @property
   def builders(self):
     return builders.BUILDERS
 
   @property
+  def steps(self):
+    return steps
+
+  @property
   def output_dir(self):
     """Return the path to the built executable directory."""
     return self.c.build_dir.join(self.c.build_config_fs)
 
   @property
   def version(self):
     """Returns a version dictionary (after get_version()), e.g.
 
     { 'MAJOR'": '37', 'MINOR': '0', 'BUILD': '2021', 'PATCH': '0' }
     """
@@ skipping 403 matching lines @@
     steps = []
     if bot_type in ['tester', 'builder_tester'] and test_steps:
       if self.m.platform.is_win:
         steps.append(self.crash_handler())
 
       steps.extend(test_steps)
 
       if self.m.platform.is_win:
         steps.append(self.process_dumps())
     return steps