old_contents: function FindProxyForURL(url, host) {
    return "PROXY success:80";
  }
  
  // We end the script with a comment (and no trailing newline).
  // This used to cause problems, because internally ProxyResolverV8
  // would append some functions to the script; the first line of
  // those extra functions was being considered part of the comment.
  
new_contents: function FindProxyForURL(url, host) {
    return "PROXY success:80";
  }
  
  // We end the script with a comment (and no trailing newline).
  // This used to cause problems, because internally ProxyResolverV8
  // would append some functions to the script; the first line of
  // those extra functions was being considered part of the comment.
subject: Set the mime-type on a test data file to binary.