Created a separate test page for gpu rasterization.

content/test/gpu/page_sets/gpu_rasterization_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.
 # pylint: disable=W0401,W0614
 from telemetry.page.actions.all_page_actions import *
 from telemetry.page import page as page_module
 from telemetry.page import page_set as page_set_module
 
 
 class GpuRasterizationTestsPage(page_module.Page):
 
   def __init__(self, page_set):
     super(GpuRasterizationTestsPage, self).__init__(
-      url='file://../../data/gpu/pixel_css3d.html',
+      url='file://../../data/gpu/pixel_background.html',

[Ken Russell (switch to Gerrit), 2014/06/02 23:20:14]

I'd suggest "pixel_blue_box.html" as a more descriptive name of this page.

[alokp, 2014/06/02 23:44:04]

The naming convention used in data/gpu directory seem to use html features
rather than the content.

       page_set=page_set,
-      name='GpuRasterization.CSS3DBlueBox')
+      name='GpuRasterization.BlueBox')
 
-    self.user_agent_type = 'desktop'
     self.expectations = [
       {'comment': 'body-t',
        'color': [255, 255, 255],
        'tolerance': 0,
        'location': [5, 5]},
       {'comment': 'body-r',
        'color': [255, 255, 255],
        'tolerance': 0,
-       'location': [245, 5]},
+       'location': [215, 5]},
       {'comment': 'body-b',
        'color': [255, 255, 255],
        'tolerance': 0,
-       'location': [245, 245]},
+       'location': [215, 215]},
       {'comment': 'body-l',
        'color': [255, 255, 255],
        'tolerance': 0,
-       'location': [5, 245]},
+       'location': [5, 215]},
       {'comment': 'background-t',
        'color': [0, 0, 0],
        'tolerance': 0,
        'location': [30, 30]},
       {'comment': 'background-r',
        'color': [0, 0, 0],
        'tolerance': 0,
        'location': [170, 30]},
       {'comment': 'background-b',
        'color': [0, 0, 0],
        'tolerance': 0,
        'location': [170, 170]},
       {'comment': 'background-l',
        'color': [0, 0, 0],
        'tolerance': 0,
        'location': [30, 170]},
       {'comment': 'box-t',
        'color': [0, 0, 255],
        'tolerance': 0,
        'location': [70, 70]},
       {'comment': 'box-r',
        'color': [0, 0, 255],
        'tolerance': 0,
        'location': [140, 70]},
       {'comment': 'box-b',
        'color': [0, 0, 255],
        'tolerance': 0,
-       'location': [140, 120]},
+       'location': [140, 140]},
       {'comment': 'box-l',
        'color': [0, 0, 255],
        'tolerance': 0,
-       'location': [70, 120]}
+       'location': [70, 140]}
     ]
-    self.test_rect = [0, 0, 250, 250]
+    self.test_rect = [0, 0, 220, 220]
 
   def RunNavigateSteps(self, action_runner):
     action_runner.NavigateToPage(self)
     action_runner.RunAction(WaitAction(
       {
         'javascript': 'domAutomationController._finished',
         'timeout': 30
       }))
 
 
 class GpuRasterizationTestsPageSet(page_set_module.PageSet):
 
   """ Basic test cases for GPU rasterization. """
 
   def __init__(self):
-    super(GpuRasterizationTestsPageSet, self).__init__(
-      user_agent_type='desktop')
+    super(GpuRasterizationTestsPageSet, self).__init__()
 
     self.AddPage(GpuRasterizationTestsPage(self))