Remove Port.default_pixel_tests.

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py

 # Copyright (C) 2010 Google Inc. All rights reserved.
 # Copyright (C) 2010 Gabor Rapcsanyi (rgabor@inf.u-szeged.hu), University of Szeged
 # Copyright (C) 2011 Apple 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.
@@ skipping 172 matching lines @@
                 dest="show_results",
                 action="store_false",
                 default=True,
                 help="Don't launch a browser with results after the tests are done"),
             optparse.make_option(
                 "-p",
                 "--pixel",
                 "--pixel-tests",
                 dest="pixel_tests",
                 action="store_true",
-                help="Enable pixel-to-pixel PNG comparisons"),
+                default=True,
+                help="Enable pixel-to-pixel PNG comparisons (enabled by default)"),
             optparse.make_option(
                 "--no-pixel",
                 "--no-pixel-tests",
                 dest="pixel_tests",
                 action="store_false",
+                default=True,
                 help="Disable pixel-to-pixel PNG comparisons"),
             # FIXME: we should support a comma separated list with
             # --pixel-test-directory as well.
             optparse.make_option(
                 "--pixel-test-directory",
                 dest="pixel_test_directories",
                 action="append",
                 default=[],
                 help=("A directory where it is allowed to execute tests as pixel tests. Specify "
                       "multiple times to add multiple directories. This option implies "
@@ skipping 269 matching lines @@
     if not options.child_processes:
         options.child_processes = port.host.environ.get("WEBKIT_TEST_CHILD_PROCESSES",
                                                         str(port.default_child_processes()))
     if not options.max_locked_shards:
         options.max_locked_shards = int(port.host.environ.get("WEBKIT_TEST_MAX_LOCKED_SHARDS",
                                                               str(port.default_max_locked_shards())))
 
     if not options.configuration:
         options.configuration = port.default_configuration()
 
-    if options.pixel_tests is None:
-        options.pixel_tests = port.default_pixel_tests()
-
     if not options.time_out_ms:
         options.time_out_ms = str(port.default_timeout_ms())
 
     options.slow_time_out_ms = str(5 * int(options.time_out_ms))
 
     if options.additional_platform_directory:
         additional_platform_directories = []
         for path in options.additional_platform_directory:
             additional_platform_directories.append(port.host.filesystem.abspath(path))
         options.additional_platform_directory = additional_platform_directories
@@ skipping 85 matching lines @@
             _log.debug("\t%s", process)
 
         return run_details
 
     finally:
         printer.cleanup()
 
 if __name__ == '__main__':
     exit_code = main(sys.argv[1:], sys.stdout, sys.stderr)
     sys.exit(exit_code)