Drop unwanted dependencies on chromium_tests recipe module

scripts/slave/recipe_modules/ios/api.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 copy
 
 from recipe_engine import recipe_api
 
 
 class iOSApi(recipe_api.RecipeApi):
@@ skipping 23 matching lines @@
         step_result.json.output['Xcode Version'],
         step_result.json.output['Xcode Build Version'],
       )
     return step_result
 
   def checkout(self, **kwargs):
     """Checks out Chromium."""
     kwargs.setdefault('force', True)
     self.m.gclient.set_config('ios')
 
-    checkout_dir = self.m.chromium_tests.get_checkout_dir({})
+    checkout_dir = self.m.chromium_checkout.get_checkout_dir({})
     if checkout_dir:
       kwargs.setdefault('cwd', checkout_dir)
 
     return self.m.bot_update.ensure_checkout(**kwargs)
 
   @property
   def compiler(self):
     assert self.__config is not None
     return self.__config['compiler']
 
@@ skipping 279 matching lines @@
                              name='generate_build_files' + suffix,
                              mb_config_path=mb_config_path,
                              gyp_script=gyp_script,
                              build_dir='//out/' + build_sub_path)
 
     use_analyze = self.__config['use_analyze']
     if (use_analyze and
         self.compiler == 'ninja' and
         self.m.tryserver.is_tryserver and
         'without patch' not in suffix):
-      affected_files = self.m.chromium_tests.get_files_affected_by_patch(
+      affected_files = self.m.chromium_checkout.get_files_affected_by_patch(
           cwd=self.m.path['checkout'])
       # The same test may be configured to run on multiple simulators.
       # Only specify each test once for the analyzer.
       tests = list(set(test['app'] for test in self.__config['tests']))
 
       test_targets, compile_targets = (
         self.m.filter.analyze(
           affected_files,
           tests,
           self.__config['additional_compile_targets'] + tests,
@@ skipping 410 matching lines @@
         self.configuration,
         'iossim',
       ),
       'ninja': self.m.path.join(
         'src',
          build_dir,
          '%s-%s' % (self.configuration, platform),
          'iossim',
       ),
     }[self.compiler]