Make gpu black list work again on Linux

content/test/gpu/gpu_tests/gpu_process.py

Index: content/test/gpu/gpu_tests/gpu_process.py
diff --git a/content/test/gpu/gpu_tests/gpu_process.py b/content/test/gpu/gpu_tests/gpu_process.py
index a27c701594c178945284891d18268a2c76b82880..4a54824f6253c9e3a00362468f8921f9320ea53d 100644
--- a/content/test/gpu/gpu_tests/gpu_process.py
+++ b/content/test/gpu/gpu_tests/gpu_process.py
@@ -6,6 +6,7 @@ from gpu_tests import gpu_test_base
 import page_sets
 
 from telemetry.page import page_test
+from telemetry.story import story_set as story_set_module
 
 test_harness_script = r"""
   var domAutomationController = {};
@@ -51,3 +52,39 @@ class GpuProcess(gpu_test_base.TestBase):
     for page in story_set:
       page.script_to_evaluate_on_commit = test_harness_script
     return story_set
+
+class NoGpuProcessValidator(gpu_test_base.ValidatorBase):
+  def __init__(self):
+    super(NoGpuProcessValidator, self).__init__(
+        needs_browser_restart_after_each_page=True)
+
+  def ValidateAndMeasurePage(self, page, tab, results):
+    has_gpu_process_js = 'chrome.gpuBenchmarking.hasGpuProcess()'
+    has_gpu_process = tab.EvaluateJavaScript(has_gpu_process_js)
+    if has_gpu_process:
+      raise page_test.Failure('GPU process detected')
+
+class NoGpuProcess(gpu_test_base.TestBase):
+  """Tests that accelerated content  does not trigger the creation of a GPU
+     process if the card is black listed"""
+  test = NoGpuProcessValidator
+
+  @classmethod
+  def Name(cls):
+    return 'no_gpu_process'
+
+  def _CreateExpectations(self):
+    return expectations.GpuProcessExpectations()
+
+  def CreateStorySet(self, options):
+    options.AppendExtraBrowserArgs('--gpu-driver-vendor=Mesa')
+    options.AppendExtraBrowserArgs('--gl-vendor-string=VMware')
+    options.AppendExtraBrowserArgs('--gl-renderer-string=softpipe')
+
+    story_set = story_set_module.StorySet()
+    story_set.AddStory(gpu_test_base.PageBase(
+        url='about:blank', name='GpuProcess.no_gpu_process',
+        page_set=story_set, expectations=self.GetExpectations()))
+    for page in story_set:
+      page.script_to_evaluate_on_commit = test_harness_script
+    return story_set