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

build/android/pylib/base/test_instance_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 import constants
+from pylib.gtest import gtest_test_instance
+from pylib.instrumentation import instrumentation_test_instance
+from pylib.utils import isolator
+from pylib.uirobot import uirobot_test_instance
+
+
+
+def CreateTestInstance(args, error_func):
+
+  if args.command == 'gtest':
+    return gtest_test_instance.GtestTestInstance(
+        args, isolator.Isolator(constants.ISOLATE_DEPS_DIR), error_func)
+  elif args.command == 'instrumentation':
+    return instrumentation_test_instance.InstrumentationTestInstance(
+        args, isolator.Isolator(constants.ISOLATE_DEPS_DIR), error_func)
+  elif args.command == 'uirobot':
+    return uirobot_test_instance.UirobotTestInstance(args, error_func)
+
+  error_func('Unable to create %s test instance.' % args.command)