Add typ boilerplate to Telemetry-based GPU tests.

content/test/gpu/gpu_tests/screenshot_sync_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 logging
 import os
 import random
+import sys
 
 from gpu_tests import gpu_integration_test
 from gpu_tests import path_util
 from gpu_tests import screenshot_sync_expectations
 
 from telemetry.util import image_util
 from telemetry.util import rgba_color
 
 data_path = os.path.join(
     path_util.GetChromiumSrcDir(), 'content', 'test', 'data', 'gpu')
@@ skipping 108 matching lines @@
       for x in range(start_x, outer_size, skip):
         self._CheckColorMatchAtLocation(canvasRGB, screenshot, x, y)
 
   def RunActualGpuTest(self, test_path, *args):
     browser_arg = args[0]
     self.RestartBrowserIfNecessaryWithArgs([browser_arg])
     self._Navigate(test_path)
     repetitions = 20
     for _ in range(0, repetitions):
       self._CheckScreenshot()
+
+def load_tests(loader, tests, pattern):
+  del loader, tests, pattern  # Unused.
+  return gpu_integration_test.LoadAllTestsInModule(sys.modules[__name__])