Add typ boilerplate to Telemetry-based GPU tests.

content/test/gpu/gpu_tests/context_lost_integration_test.py

 # Copyright 2016 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 os
+import sys
 import time
 
 from gpu_tests import gpu_integration_test
 from gpu_tests import context_lost_expectations
 from gpu_tests import path_util
 
 import py_utils
 from telemetry.core import exceptions
 
 data_path = os.path.join(
@@ skipping 228 matching lines @@
 
   def _ContextLost_WebGLContextLostInHiddenTab(self, test_path):
     self._NavigateAndWaitForLoad(test_path)
     # Test losing a context in a hidden tab. This test passes if the tab
     # doesn't crash.
     tab = self.tab
     dummy_tab = tab.browser.tabs.New()
     tab.EvaluateJavaScript('loseContextUsingExtension()')
     tab.Activate()
     self._WaitForTabAndCheckCompletion()
+
+def load_tests(loader, tests, pattern):
+  del loader, tests, pattern  # Unused.
+  return gpu_integration_test.LoadAllTestsInModule(sys.modules[__name__])