Add support for Junit tests in platform mode.

build/android/pylib/base/test_run_factory.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.
 
 from pylib.gtest import gtest_test_instance
 from pylib.instrumentation import instrumentation_test_instance
+from pylib.junit import junit_test_instance
 from pylib.local.device import local_device_environment
 from pylib.local.device import local_device_gtest_run
 from pylib.local.device import local_device_instrumentation_test_run
 from pylib.local.device import local_device_perf_test_run
+from pylib.local.machine import local_machine_environment
+from pylib.local.machine import local_machine_junit_test_run
 from pylib.perf import perf_test_instance
 
 
 def _CreatePerfTestRun(args, env, test_instance):
   if args.print_step:
     return local_device_perf_test_run.PrintStep(
         env, test_instance)
   elif args.output_json_list:
     return local_device_perf_test_run.OutputJsonList(
         env, test_instance)
   return local_device_perf_test_run.LocalDevicePerfTestRun(
       env, test_instance)
 
 
 def CreateTestRun(args, env, test_instance, error_func):
   if isinstance(env, local_device_environment.LocalDeviceEnvironment):
     if isinstance(test_instance, gtest_test_instance.GtestTestInstance):
       return local_device_gtest_run.LocalDeviceGtestRun(env, test_instance)
     if isinstance(test_instance,
                   instrumentation_test_instance.InstrumentationTestInstance):
       return (local_device_instrumentation_test_run
               .LocalDeviceInstrumentationTestRun(env, test_instance))
     if isinstance(test_instance,
                   perf_test_instance.PerfTestInstance):
       return _CreatePerfTestRun(args, env, test_instance)
 
+  if isinstance(env, local_machine_environment.LocalMachineEnvironment):
+    if isinstance(test_instance, junit_test_instance.JunitTestInstance):
+      return (local_machine_junit_test_run
+              .LocalMachineJunitTestRun(env, test_instance))
+
   error_func('Unable to create test run for %s tests in %s environment'
              % (str(test_instance), str(env)))