Enable slimming paint for all layout tests

Tools/Scripts/webkitpy/layout_tests/port/base.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 206 matching lines @@
         self._test_configuration = None
         self._reftest_list = {}
         self._results_directory = None
         self._virtual_test_suites = None
 
     def buildbot_archives_baselines(self):
         return True
 
     def additional_driver_flag(self):
         if self.driver_name() == self.CONTENT_SHELL_NAME:
-            return ['--run-layout-test', '--disable-slimming-paint']
+            # TODO(wangxianzhu): Remove --enable-slimming-paint when we enable
+            # it by default.
+            return ['--run-layout-test', '--enable-slimming-paint']
         return []
 
     def supports_per_test_timeout(self):
         return False
 
     def default_pixel_tests(self):
         return True
 
     def default_smoke_test_only(self):
         return False
@@ skipping 1324 matching lines @@
 
     def look_for_new_samples(self, unresponsive_processes, start_time):
         pass
 
     def sample_process(self, name, pid):
         pass
 
     def physical_test_suites(self):
         return [
             # For example, to turn on force-compositing-mode in the svg/ directory:
-            # PhysicalTestSuite('svg',
-            #                   ['--force-compositing-mode']),
-            PhysicalTestSuite('compositing', ['--enable-slimming-paint']),
-            PhysicalTestSuite('css1', ['--enable-slimming-paint']),
-            PhysicalTestSuite('css2.1', ['--enable-slimming-paint']),
-            PhysicalTestSuite('css3', ['--enable-slimming-paint']),
-            PhysicalTestSuite('editing', ['--enable-slimming-paint']),
-            PhysicalTestSuite('fast', ['--enable-slimming-paint']),
-            PhysicalTestSuite('media', ['--enable-slimming-paint']),
-            PhysicalTestSuite('paint', ['--enable-slimming-paint']),
-            PhysicalTestSuite('plugins', ['--enable-slimming-paint']),
-            PhysicalTestSuite('printing', ['--enable-slimming-paint']),
-            PhysicalTestSuite('scrollbars', ['--enable-slimming-paint']),
-            PhysicalTestSuite('selection', ['--enable-slimming-paint']),
-            PhysicalTestSuite('svg', ['--enable-slimming-paint']),
-            PhysicalTestSuite('tables', ['--enable-slimming-paint']),
-            PhysicalTestSuite('transforms', ['--enable-slimming-paint']),
+            # PhysicalTestSuite('svg', ['--force-compositing-mode']),
         ]
 
     def virtual_test_suites(self):
         if self._virtual_test_suites is None:
             path_to_virtual_test_suites = self._filesystem.join(self.layout_tests_dir(), 'VirtualTestSuites')
             assert self._filesystem.exists(path_to_virtual_test_suites), 'LayoutTests/VirtualTestSuites not found'
             try:
                 test_suite_json = json.loads(self._filesystem.read_text_file(path_to_virtual_test_suites))
                 self._virtual_test_suites = [VirtualTestSuite(**d) for d in test_suite_json]
             except ValueError as e:
@@ skipping 184 matching lines @@
 class PhysicalTestSuite(object):
     def __init__(self, base, args, reference_args=None):
         self.name = base
         self.base = base
         self.args = args
         self.reference_args = args if reference_args is None else reference_args
         self.tests = set()
 
     def __repr__(self):
         return "PhysicalTestSuite('%s', '%s', %s, %s)" % (self.name, self.base, self.args, self.reference_args)