Defer loading of audio/video tags while prerendering.

net/tools/testserver/testserver.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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.
 
 """This is a simple HTTP/FTP/SYNC/TCP/UDP/ server used for testing Chrome.
 
 It supports several test URLs, as specified by the handlers in TestPageHandler.
 By default, it listens on an ephemeral port and sends the port number back to
 the originating process over a pipe. The originating process can specify an
@@ skipping 916 matching lines @@
           # "name: value"
           name, value = header_values[0]
           self.send_header(name, value)
       f.close()
     else:
       # Could be more generic once we support mime-type sniffing, but for
       # now we need to set it explicitly.
 
       range = self.headers.get('Range')
       if range and range.startswith('bytes='):
-        # Note this doesn't handle all valid byte range values (i.e. open ended
-        # ones), just enough for what we needed so far.
+        # Note this doesn't handle all valid byte range values (i.e. left
+        # open ended ones), just enough for what we needed so far.
         range = range[6:].split('-')
         start = int(range[0])
-        end = int(range[1])
+        if range[1]:
+          end = int(range[1])
+        else:
+          end = len(data)
 
         self.send_response(206)
         content_range = 'bytes ' + str(start) + '-' + str(end) + '/' + \
                         str(len(data))
         self.send_header('Content-Range', content_range)
         data = data[start: end + 1]
       else:
         self.send_response(200)
 
       self.send_header('Content-Type', self.GetMIMETypeFromName(file_path))
@@ skipping 998 matching lines @@
                            'random key if none is specified on the command '
                            'line.')
   option_parser.add_option('', '--policy-user', default='user@example.com',
                            dest='policy_user',
                            help='Specify the user name the server should '
                            'report back to the client as the user owning the '
                            'token used for making the policy request.')
   options, args = option_parser.parse_args()
 
   sys.exit(main(options, args))