Not for commit: force failure in the first WebGL conformance test.

content/test/gpu/gpu_tests/webgl_conformance_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.
 
 from gpu_tests import gpu_integration_test
 from gpu_tests import webgl_conformance
 from gpu_tests import webgl_conformance_expectations
 from gpu_tests import webgl2_conformance_expectations
 
 
 class WebGLConformanceIntegrationTest(gpu_integration_test.GpuIntegrationTest):
 
   _webgl_version = None
 
+  _first_time = True
+
   @classmethod
   def Name(cls):
     return 'webgl_conformance'
 
   @classmethod
   def AddCommandlineArgs(cls, parser):
     parser.add_option('--webgl-conformance-version',
         help='Version of the WebGL conformance tests to run.',
         default='1.0.4')
     parser.add_option('--webgl2-only',
@@ skipping 12 matching lines @@
     for test_path in test_paths:
       # generated test name cannot contain '.'
       name = webgl_conformance.GenerateTestNameFromTestPath(test_path).replace(
           '.', '_')
       yield (name, test_path, ())
 
   def RunActualGpuTest(self, test_path, *args):
     url = self.UrlOfStaticFilePath(test_path)
     harness_script = webgl_conformance.conformance_harness_script
     self.tab.Navigate(url, script_to_evaluate_on_commit=harness_script)
+    if self.__class__._first_time:
+      self.__class__._first_time = False
+      # Try also replacing this with chrome://crash
+      self.tab.Navigate('chrome://gpucrash', timeout=5)
     self.tab.action_runner.WaitForJavaScriptCondition(
-        'webglTestHarness._finished', timeout_in_seconds=300)
+        'webglTestHarness._finished', timeout_in_seconds=10)
     if not webgl_conformance._DidWebGLTestSucceed(self.tab):
       self.fail(webgl_conformance._WebGLTestMessages(self.tab))
 
   @classmethod
   def CustomizeOptions(cls):
     assert cls._webgl_version == 1 or cls._webgl_version == 2
     validator = None
     if cls._webgl_version == 1:
       validator = webgl_conformance.WebglConformanceValidator()
     else:
@@ skipping 10 matching lines @@
       return webgl2_conformance_expectations.WebGL2ConformanceExpectations(
           webgl_conformance.conformance_path)
 
   @classmethod
   def setUpClass(cls):
     super(cls, WebGLConformanceIntegrationTest).setUpClass()
     cls.CustomizeOptions()
     cls.SetBrowserOptions(cls._finder_options)
     cls.StartBrowser()
     cls.SetStaticServerDir(webgl_conformance.conformance_path)