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

build/android/pylib/utils/base_error.py

Index: build/android/pylib/utils/base_error.py
diff --git a/build/android/pylib/utils/base_error.py b/build/android/pylib/utils/base_error.py
new file mode 100644
index 0000000000000000000000000000000000000000..31eaa54c446c52c589fd699b10e18a16a10caabc
--- /dev/null
+++ b/build/android/pylib/utils/base_error.py
@@ -0,0 +1,16 @@
+# Copyright 2015 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.
+
+
+class BaseError(Exception):
+  """Base error for all test runner errors."""
+
+  def __init__(self, message, is_infra_error=False):
+    super(BaseError, self).__init__(message)
+    self._is_infra_error = is_infra_error
+
+  @property
+  def is_infra_error(self):
+    """Property to indicate if error was caused by an infrastructure issue."""
+    return self._is_infra_error