Add Xvfb debugging code to run-webkit-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 578 matching lines @@
             stdout.flush()
 
             _log.debug('Generating dashboard...')
             gen_dash_board = DashBoardGenerator(port)
             gen_dash_board.generate()
             _log.debug('Dashboard generated.')
 
         _log.debug('')
         _log.debug('Testing completed, Exit status: %d', run_details.exit_code)
 
-        # Temporary process dump for debugging windows timeout issues, see crbug.com/522396.

[mithro, 2017/04/26 01:57:17]

This ideally would be a separate CL.

[Dirk Pranke, 2017/04/26 02:03:00]

Yeah, ideally :).

-        _log.debug('')
-        _log.debug('Process dump:')
-        for process in port.host.executive.process_dump():
-            _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)