Add a snapshot of flutter/engine/src/build to our sdk

build/android/pylib/junit/test_dispatcher.py

Index: build/android/pylib/junit/test_dispatcher.py
diff --git a/build/android/pylib/junit/test_dispatcher.py b/build/android/pylib/junit/test_dispatcher.py
new file mode 100644
index 0000000000000000000000000000000000000000..6e0d865c3f5688303c4ee708bdbf42748d825302
--- /dev/null
+++ b/build/android/pylib/junit/test_dispatcher.py
@@ -0,0 +1,28 @@
+# 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 import constants
+from pylib.base import base_test_result
+
+def RunTests(tests, runner_factory):
+  """Runs a set of java tests on the host.
+
+  Return:
+    A tuple containing the results & the exit code.
+  """
+  def run(t):
+    runner = runner_factory(None, None)
+    runner.SetUp()
+    results_list, return_code = runner.RunTest(t)
+    runner.TearDown()
+    return (results_list, return_code == 0)
+
+  test_run_results = base_test_result.TestRunResults()
+  exit_code = 0
+  for t in tests:
+    results_list, passed = run(t)
+    test_run_results.AddResults(results_list)
+    if not passed:
+      exit_code = constants.ERROR_EXIT_CODE
+  return (test_run_results, exit_code)