Add DriverBugWorkaroundsInGpuProcessPage to gpu_process_test.py

content/test/gpu/page_sets/gpu_process_tests.py

Index: content/test/gpu/page_sets/gpu_process_tests.py
diff --git a/content/test/gpu/page_sets/gpu_process_tests.py b/content/test/gpu/page_sets/gpu_process_tests.py
index f1ce3eb42ce98128a251ba75fffe86d8440d864f..bc4dde2230155b3a2cfc739fdb53e593c73c35dc 100644
--- a/content/test/gpu/page_sets/gpu_process_tests.py
+++ b/content/test/gpu/page_sets/gpu_process_tests.py
@@ -169,6 +169,33 @@ class SkipGpuProcessPage(gpu_test_base.PageBase):
     if has_gpu_process:
       raise page_test.Failure('GPU process detected')
 
+
+class DriverBugWorkaroundsSharedPageState(GpuProcessSharedPageState):
+  def __init__(self, test, finder_options, story_set):
+    super(DriverBugWorkaroundsSharedPageState, self).__init__(
+      test, finder_options, story_set)
+    options = finder_options.browser_options
+    options.AppendExtraBrowserArgs('--use_gpu_driver_workaround_for_testing')
+
+
+class DriverBugWorkaroundsInGpuProcessPage(gpu_test_base.PageBase):
+  def __init__(self, story_set, expectations):
+    super(DriverBugWorkaroundsInGpuProcessPage, self).__init__(
+      url='chrome:gpu',
+      name='GpuProcess.driver_bug_workarounds_in_gpu_process',
+      page_set=story_set,
+      shared_page_state_class=DriverBugWorkaroundsSharedPageState,
+      expectations=expectations)
+
+  def Validate(self, tab, results):
+    if not tab.EvaluateJavaScript('VerifyDriverBugWorkaroundIsPresent("%s")'
+        % 'use_gpu_driver_workaround_for_testing'):
+      print 'Test failed. Printing page contents:'
+      print tab.EvaluateJavaScript('document.body.innerHTML')
+      raise page_test.Failure('Browser and GPU process list of driver bug \
+        workarounds are not equal')
+
+
 class GpuProcessTestsStorySet(story_set_module.StorySet):
 
   """ Tests that accelerated content triggers the creation of a GPU process """
@@ -194,6 +221,7 @@ class GpuProcessTestsStorySet(story_set_module.StorySet):
     self.AddStory(NoGpuProcessPage(self, expectations))
     self.AddStory(SoftwareGpuProcessPage(self, expectations))
     self.AddStory(SkipGpuProcessPage(self, expectations))
+    self.AddStory(DriverBugWorkaroundsInGpuProcessPage(self, expectations))
 
   @property
   def allow_mixed_story_states(self):