[tools] Use sandbox in callstats script

tools/callstats.py

 #!/usr/bin/env python
 # Copyright 2016 the V8 project authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 '''
 Usage: runtime-call-stats.py [-h] <command> ...
 
 Optional arguments:
   -h, --help  show this help message and exit
 
@@ skipping 121 matching lines @@
           user_data_dir = args.user_data_dir
         else:
           user_data_dir = tempfile.mkdtemp(prefix="chr_")
         js_flags = "--runtime-call-stats"
         if args.replay_wpr: js_flags += " --allow-natives-syntax"
         if args.js_flags: js_flags += " " + args.js_flags
         chrome_flags = [
             "--no-default-browser-check",
             "--disable-translate",
             "--disable-seccomp-sandbox",
-            "--no-sandbox",
             "--js-flags={}".format(js_flags),
             "--no-first-run",
             "--user-data-dir={}".format(user_data_dir),
         ]
         if args.replay_wpr:
           chrome_flags += [
               "--host-resolver-rules=MAP *:80 localhost:4080, "  \
                                     "MAP *:443 localhost:4443, " \
                                     "EXCLUDE localhost",
               "--ignore-certificate-errors",
@@ skipping 376 matching lines @@
     args.error("use either option --sites-file or site URLs")
     sys.exit(1)
   elif args.command == "run" and not coexist(args.replay_wpr, args.replay_bin):
     args.error("options --replay-wpr and --replay-bin must be used together")
     sys.exit(1)
   else:
     args.func(args)
 
 if __name__ == "__main__":
   sys.exit(main())