Implement --download-data for test harness.

tools/test-wrapper-gypbuild.py

 #!/usr/bin/env python
 #
 # Copyright 2011 the V8 project authors. 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
@@ skipping 55 matching lines @@
                     default='ia32,x64,arm')
 
   # Flags that are passed on to the wrapped test.py script:
   result.add_option("-v", "--verbose", help="Verbose output",
       default=False, action="store_true")
   result.add_option("-p", "--progress",
       help="The style of progress indicator (verbose, dots, color, mono)",
       choices=PROGRESS_INDICATORS, default="mono")
   result.add_option("--report", help="Print a summary of the tests to be run",
       default=False, action="store_true")
+  result.add_option("--download-data", help="Download missing test suite data",
+      default=False, action="store_true")
   result.add_option("-s", "--suite", help="A test suite",
       default=[], action="append")
   result.add_option("-t", "--timeout", help="Timeout in seconds",
       default=60, type="int")
   result.add_option("--snapshot", help="Run the tests with snapshot turned on",
       default=False, action="store_true")
   result.add_option("--special-command", default=None)
   result.add_option("--valgrind", help="Run tests through valgrind",
       default=False, action="store_true")
   result.add_option("--cat", help="Print the source of the tests",
@@ skipping 68 matching lines @@
 
 
 def PassOnOptions(options):
   result = []
   if options.verbose:
     result += ['--verbose']
   if options.progress != 'mono':
     result += ['--progress=' + options.progress]
   if options.report:
     result += ['--report']
+  if options.download_data:
+    result += ['--download-data']
   if options.suite != []:
     for suite in options.suite:
       result += ['--suite=../../test/' + suite]
   if options.timeout != 60:
     result += ['--timeout=%s' % options.timeout]
   if options.snapshot:
     result += ['--snapshot']
   if options.special_command:
     result += ['--special-command="%s"' % options.special_command]
   if options.valgrind:
@@ skipping 72 matching lines @@
                              shell=True,
                              cwd=workspace,
                              env=env)
     returncodes = child.wait()
 
   return returncodes
 
 
 if __name__ == '__main__':
   sys.exit(Main())