Port context_lost test to new GpuIntegrationTest harness.

content/test/gpu/gpu_tests/gpu_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 logging
 
 from telemetry.testing import serially_executed_browser_test_case
 from telemetry.util import screenshot
 
 from gpu_tests import exception_formatter
@@ skipping 40 matching lines @@
             logging.warning("GpuIntegrationTest unable to take screenshot")
           raise
 
   def _RestartBrowser(self, reason):
     logging.warning('Restarting browser due to '+ reason)
     self.StopBrowser()
     self.SetBrowserOptions(self._finder_options)
     self.StartBrowser()
     self.tab = self.browser.tabs[0]
 
-  def _RunGpuTest(self, url, test_name, args):
+  def _RunGpuTest(self, url, test_name, *args):
     temp_page = _EmulatedPage(url, test_name)
     expectations = self.__class__.GetExpectations()
     expectation = expectations.GetExpectationForPage(
       self.browser, temp_page)
     if expectation == 'skip':
       # skipTest in Python's unittest harness raises an exception, so
       # aborts the control flow here.
       self.skipTest('SKIPPING TEST due to test expectations')
     try:
       self.RunActualGpuTest(url, *args)
@@ skipping 82 matching lines @@
 
   def setUp(self):
     try:
       self.tab = self.browser.tabs[0]
     except Exception:
       # restart the browser to make sure a failure in a test doesn't
       # propagate to the next test iteration.
       logging.exception("Failure during browser startup")
       self._RestartBrowser('failure in setup')
       raise