media: run_mojo_media_renderer.py default to headless mode.

media/mojo/scripts/run_mojo_media_renderer.py

 #!/usr/bin/env python
 # 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.
 #
 # The script follows mojo/services/html_viewer/view_url.py and modified it for
-# test the mojo media renderer. The page will be rendered in a windowless mode.
+# test the mojo media renderer. The page will be rendered in a headless mode.
 #
 # TODO(xhwang): Explore the possibility of running this with the Kiosk window
-# manager.
+# manager. See http://crbug.com/467176
 
 import argparse
 import os
 import subprocess
 import sys
 
 root_path = os.path.realpath(
     os.path.join(
         os.path.dirname(
             os.path.realpath(__file__)),
         os.pardir,
         os.pardir,
         os.pardir))
 
 def _BuildShellCommand(args):
   sdk_version = subprocess.check_output(["cat",
       "third_party/mojo/src/mojo/public/VERSION"], cwd=root_path)
   build_dir = os.path.join(root_path, args.build_dir)
 
   shell_command = [os.path.join(build_dir, "mojo_shell")]
 
   options = []
   options.append(
       "--origin=https://storage.googleapis.com/mojo/services/linux-x64/%s" %
            sdk_version)
   options.append("--url-mappings=mojo:html_viewer=file://%s/html_viewer.mojo,"
                  "mojo:media=file://%s/media.mojo" % (build_dir, build_dir))
-  args_for_html_viewer = "--enable-mojo-media-renderer "
+  args_for_html_viewer = "--enable-mojo-media-renderer --is-headless "
   if args.verbose:
     args_for_html_viewer += \
         "--vmodule=pipeline*=3,*renderer_impl*=3,*mojo_demuxer*=3"
   options.append("--args-for=mojo:html_viewer %s" % args_for_html_viewer)
 
   full_command = shell_command + options + [args.url]
 
   if args.verbose:
     print full_command
 
@@ skipping 14 matching lines @@
   parser.add_argument("--verbose", help="Increase output verbosity.",
                       action="store_true")
   parser.add_argument("url",
                       help="The URL to be viewed")
 
   args = parser.parse_args()
   return subprocess.call(_BuildShellCommand(args))
 
 if __name__ == '__main__':
   sys.exit(main())