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

build/android/pylib/gtest/test_package.py

Index: build/android/pylib/gtest/test_package.py
diff --git a/build/android/pylib/gtest/test_package.py b/build/android/pylib/gtest/test_package.py
new file mode 100644
index 0000000000000000000000000000000000000000..4042a98a1320ef0e58b12cbfba279f8559b70afc
--- /dev/null
+++ b/build/android/pylib/gtest/test_package.py
@@ -0,0 +1,76 @@
+# Copyright (c) 2012 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.
+
+"""Base class representing GTest test packages."""
+# pylint: disable=R0201
+
+
+class TestPackage(object):
+
+  """A helper base class for both APK and stand-alone executables.
+
+  Args:
+    suite_name: Name of the test suite (e.g. base_unittests).
+  """
+  def __init__(self, suite_name):
+    self.suite_name = suite_name
+
+  def ClearApplicationState(self, device):
+    """Clears the application state.
+
+    Args:
+      device: Instance of DeviceUtils.
+    """
+    raise NotImplementedError('Method must be overridden.')
+
+  def CreateCommandLineFileOnDevice(self, device, test_filter, test_arguments):
+    """Creates a test runner script and pushes to the device.
+
+    Args:
+      device: Instance of DeviceUtils.
+      test_filter: A test_filter flag.
+      test_arguments: Additional arguments to pass to the test binary.
+    """
+    raise NotImplementedError('Method must be overridden.')
+
+  def GetAllTests(self, device):
+    """Returns a list of all tests available in the test suite.
+
+    Args:
+      device: Instance of DeviceUtils.
+    """
+    raise NotImplementedError('Method must be overridden.')
+
+  def GetGTestReturnCode(self, _device):
+    return None
+
+  def SpawnTestProcess(self, device):
+    """Spawn the test process.
+
+    Args:
+      device: Instance of DeviceUtils.
+
+    Returns:
+      An instance of pexpect spawn class.
+    """
+    raise NotImplementedError('Method must be overridden.')
+
+  def Install(self, device):
+    """Install the test package to the device.
+
+    Args:
+      device: Instance of DeviceUtils.
+    """
+    raise NotImplementedError('Method must be overridden.')
+
+  def PullAppFiles(self, device, files, directory):
+    """Pull application data from the device.
+
+    Args:
+      device: Instance of DeviceUtils.
+      files: A list of paths relative to the application data directory to
+        retrieve from the device.
+      directory: The host directory to which files should be pulled.
+    """
+    raise NotImplementedError('Method must be overridden.')