Make gpu black list work again on Linux

content/test/gpu/page_sets/gpu_process_tests.py

 # Copyright 2014 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 telemetry.story import story_set as story_set_module
 from telemetry.page import page_test
 
 from gpu_tests import gpu_test_base
 
 class GpuProcessTestsPage(gpu_test_base.PageBase):
 
@@ skipping 34 matching lines @@
     system_info = tab.browser.GetSystemInfo()
     if not system_info.gpu:
       raise page_test.Failure('Target machine must have a GPU')
     if not system_info.gpu.aux_attributes:
       raise page_test.Failure('Browser must support GPU aux attributes')
     if not 'gl_renderer' in system_info.gpu.aux_attributes:
       raise page_test.Failure('Browser must have gl_renderer in aux attribs')
     if len(system_info.gpu.aux_attributes['gl_renderer']) <= 0:
       raise page_test.Failure('Must have a non-empty gl_renderer string')
 
-
 class GpuProcessTestsStorySet(story_set_module.StorySet):
 
   """ Tests that accelerated content triggers the creation of a GPU process """
 
   def __init__(self, expectations):
     super(GpuProcessTestsStorySet, self).__init__(
       serving_dirs=set(['../../../../content/test/data']))
 
     urls_and_names_list = [
       ('file://../../data/gpu/functional_canvas_demo.html',
        'GpuProcess.canvas2d'),
       ('file://../../data/gpu/functional_3d_css.html',
        'GpuProcess.css3d'),
       ('file://../../data/gpu/functional_webgl.html',
        'GpuProcess.webgl')
     ]
 
     for url, name in urls_and_names_list:
       self.AddStory(GpuProcessTestsPage(url, name, self, expectations))
 
     self.AddStory(FunctionalVideoPage(self, expectations))
     self.AddStory(GpuInfoCompletePage(self, expectations))