Report apptest_runner device not found infra failures.

mojo/tools/android_mojo_shell.py

 #!/usr/bin/env python
 # Copyright 2014 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.
 
 import argparse
 import logging
 import sys
 
 from mopy.android import AndroidShell
@@ skipping 22 matching lines @@
   logger = logging.getLogger()
   logging.basicConfig(stream=sys.stdout, format="%(levelname)s:%(message)s")
   logger.setLevel(logging.DEBUG if runner_args.verbose else logging.WARNING)
   logger.debug("Initialized logging: level=%s" % logger.level)
 
   config = Config(target_os=Config.OS_ANDROID,
                   target_cpu=runner_args.target_cpu,
                   is_debug=runner_args.debug,
                   apk_name="MojoRunner.apk")
   shell = AndroidShell(config)
-  args.extend(shell.PrepareShellRun(runner_args.origin, runner_args.device))
-
-  shell.CleanLogs()
+  shell.InitShell(runner_args.origin, runner_args.device)
   p = shell.ShowLogs()
   shell.StartShell(args, sys.stdout, p.terminate)
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(main())