ARM tester: added args for sandbox_linux_unittests

scripts/slave/recipes/chromium_isolate.py

 # 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.
 
 """This recipe runs all isolated tests specified in swarm_hashes property.
 Isolating a test is required in order to run it using this recipe.
 """
 
 DEPS = [
     'chromium',
     'isolate',
     'properties',
     'swarming_client',
 ]
 
 # TODO(nodir): pass these arguments from builder to tester once triggering from
 # recipes lands. This is needed for ARM testers http://crbug.com/359338
 test_args = {
     'browser_tests': ['--gtest-filter="*NaCl*"'],
+    'sandbox_linux_unittests': ['--test-launcher-print-test-stdio=always'],
 }
 
 
 def GenSteps(api):
   config_name = api.properties.get('chromium_config') or 'chromium'
   api.chromium.set_config(config_name)
 
   yield api.swarming_client.checkout()
 
   revision = api.properties['parent_got_revision']
   webkit_revision = api.properties['parent_got_webkit_revision']
   for test in sorted(api.isolate.isolated_tests):
     yield api.isolate.runtest(test, revision, webkit_revision,
                               args=test_args.get(test))
 
 
 def GenTests(api):
   props = api.properties.generic(
       parent_got_revision=123,
       parent_got_webkit_revision=321,
       parent_got_swarming_client_revision=
           'ae8085b09e6162b4ec869e430d7d09c16b32b433',
       swarm_hashes={
           "browser_tests": "23f4ed98b3616e695602920b8d6c679091e8d8ce"}
   )
 
   yield api.test('run_isolated_tests') + props