Add support for Junit tests in platform mode.

build/android/pylib/junit/junit_test_instance.py

+# Copyright 2016 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.base import test_instance
+
+
+class JunitTestInstance(test_instance.TestInstance):
+
+  def __init__(self, args, _):
+    super(JunitTestInstance, self).__init__()
+
+    self._coverage_dir = args.coverage_dir
+    self._package_filter = args.package_filter
+    self._runner_filter = args.runner_filter
+    self._test_filter = args.test_filter
+    self._test_suite = args.test_suite
+
+  #override
+  def TestType(self):
+    return 'junit'
+
+  #override
+  def SetUp(self):
+    pass
+
+  #override
+  def TearDown(self):
+    pass
+
+  @property
+  def coverage_dir(self):
+    return self._coverage_dir
+
+  @property
+  def package_filter(self):
+    return self._package_filter
+
+  @property
+  def runner_filter(self):
+    return self._runner_filter
+
+  @property
+  def test_filter(self):
+    return self._test_filter
+
+  @property
+  def suite(self):
+    return self._test_suite