MB: Remove a --target-devices-file flag for JUnit tests on android.

tools/mb/mb.py

 #!/usr/bin/env python
 # Copyright (c) 2016 The WebRTC 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 in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 """MB - the Meta-Build wrapper around GYP and GN
@@ skipping 1073 matching lines @@
           '--project', 'chromium',
           '--service-account-json',
           '/creds/service_accounts/service-account-luci-logdog-publisher.json',
           '--prefix', 'android/swarming/logcats/${SWARMING_TASK_ID}',
           '--source', '${ISOLATED_OUTDIR}/logcats',
           '--name', 'unified_logcats',
       ]
       test_cmdline = [
           self.PathJoin('bin', 'run_%s' % target),
           '--logcat-output-file', '${ISOLATED_OUTDIR}/logcats',
-          '--target-devices-file', '${SWARMING_BOT_FILE}',
-          '-v',
       ]
+      if test_type != 'junit_test':
+        test_cmdline += ['--target-devices-file', '${SWARMING_BOT_FILE}',]
       cmdline = (['./../../build/android/test_wrapper/logdog_wrapper.py']
-                 + logdog_command + test_cmdline)
+                 + logdog_command + test_cmdline + ['-v'])
     else:
       extra_files = ['../../testing/test_env.py']
 
       # This needs to mirror the settings in //build/config/ui.gni:
       # use_x11 = is_linux && !use_ozone.
       use_x11 = is_linux and not 'use_ozone=true' in vals['gn_args']
 
       xvfb = use_x11 and test_type == 'windowed_test_launcher'
       if xvfb:
         extra_files += [
@@ skipping 454 matching lines @@
   # Then check to see if the arg contains any metacharacters other than
   # double quotes; if it does, quote everything (including the double
   # quotes) for safety.
   if any(a in UNSAFE_FOR_CMD for a in arg):
     arg = ''.join('^' + a if a in ALL_META_CHARS else a for a in arg)
   return arg
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))