Add typ boilerplate to Telemetry-based GPU tests.

content/test/gpu/gpu_tests/maps_integration_test.py

 # Copyright 2017 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.
 
 import json
 import os
+import sys
 
+from gpu_tests import gpu_integration_test
 from gpu_tests import cloud_storage_integration_test_base
 from gpu_tests import maps_expectations
 from gpu_tests import path_util
 
 import py_utils
 from py_utils import cloud_storage
 
 data_path = os.path.join(path_util.GetChromiumSrcDir(),
                          'content', 'test', 'gpu', 'page_sets', 'data')
 
@@ skipping 113 matching lines @@
     # Even though the Maps test uses a fixed devicePixelRatio so that
     # it fetches all of the map tiles at the same resolution, on two
     # different devices with the same devicePixelRatio (a Retina
     # MacBook Pro and a Nexus 9), different scale factors of the final
     # screenshot are observed. Hack around this by specifying a scale
     # factor for these bots in the test expectations. This relies on
     # the test-machine-name argument being specified on the command
     # line.
     expected = self._ReadPixelExpectations(pixel_expectations_file)
     self._ValidateScreenshotSamples(tab, url, screenshot, expected, dpr)
+
+def load_tests(loader, tests, pattern):
+  del loader, tests, pattern  # Unused.
+  return gpu_integration_test.LoadAllTestsInModule(sys.modules[__name__])