chromium_tests: automatically set up test genrators

scripts/slave/recipe_modules/chromium_tests/chromium_webrtc.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 collections
 from . import steps
 
 
 _builders = collections.defaultdict(dict)
 
@@ skipping 72 matching lines @@
   spec = BaseSpec(
       bot_type='tester',
       chromium_apply_config=[],
       gclient_config=gclient_config,
       platform=platform,
       target_bits=target_bits,
       build_config=build_config)
 
   spec['parent_buildername'] = parent_builder
 
-  spec['test_generators'] = [
-    steps.generate_gtest,

[ghost stip (do not use), 2016/09/22 23:25:50]

kjellander: fyi, this shouldn't affect anything

-    steps.generate_script,
-    steps.generate_isolated_script,
-  ]
-
   if platform == 'android':
     spec['root_devices'] = True
     spec['tests'] = [
       steps.GTestTest(
           'content_browsertests',
           args=['--gtest_filter=WebRtc*']),
     ]
   else:
     spec['gclient_apply_config'].append('webrtc_test_resources')
     spec['tests'] = [
@@ skipping 38 matching lines @@
 
 AddBuildSpec('Win Builder', 'win', target_bits=32)
 AddBuildSpec('Mac Builder', 'mac')
 AddBuildSpec('Linux Builder', 'linux')
 
 AddTestSpec('Win7 Tester', 'chromium-webrtc-rel-7', 'win', target_bits=32)
 AddTestSpec('Win8 Tester', 'chromium-webrtc-rel-win8', 'win', target_bits=32)
 AddTestSpec('Win10 Tester', 'chromium-webrtc-rel-win10', 'win', target_bits=32)
 AddTestSpec('Mac Tester', 'chromium-webrtc-rel-mac', 'mac')
 AddTestSpec('Linux Tester', 'chromium-webrtc-rel-linux', 'linux')