Add typ boilerplate to Telemetry-based GPU tests.

content/test/gpu/gpu_tests/trace_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
 
 from gpu_tests import gpu_integration_test
 from gpu_tests import path_util
 from gpu_tests import pixel_test_pages
 from gpu_tests import trace_test_expectations
 
 from telemetry.timeline import model as model_module
 from telemetry.timeline import tracing_config
 
 TOPLEVEL_GL_CATEGORY = 'gpu_toplevel'
@@ skipping 103 matching lines @@
     return trace_test_expectations.TraceTestExpectations()
 
   @classmethod
   def setUpClass(cls):
     super(cls, TraceIntegrationTest).setUpClass()
     path_util.SetupTelemetryPaths()
     cls.CustomizeOptions()
     cls.SetBrowserOptions(cls._finder_options)
     cls.StartBrowser()
     cls.SetStaticServerDirs([data_path])
+
+def load_tests(loader, tests, pattern):
+  del loader, tests, pattern  # Unused.
+  return gpu_integration_test.LoadAllTestsInModule(sys.modules[__name__])