[telemetry] Cleanups for benchmarks importing page sets.

content/test/gpu/gpu_tests/hardware_accelerated_feature.py

 # Copyright 2013 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.
 import hardware_accelerated_feature_expectations as expectations
 
 from telemetry import test
 from telemetry.page import page as page_module
 from telemetry.page import page_set
 from telemetry.page import page_test
 
@@ skipping 35 matching lines @@
 class HardwareAcceleratedFeature(test.Test):
   """Tests GPU acceleration is reported as active for various features"""
   test = _HardwareAcceleratedFeatureValidator
 
   def CreateExpectations(self, page_set):
     return expectations.HardwareAcceleratedFeatureExpectations()
 
   def CreatePageSet(self, options):
     features = ['WebGL', 'Canvas']
 
-    ps = page_set.PageSet(
-      description='Tests GPU acceleration is reported as active',
-      user_agent_type='desktop',
-      file_path='')
+    ps = page_set.PageSet(user_agent_type='desktop', file_path='')
 
     for feature in features:
       ps.AddPage(ChromeGpuPage(page_set=ps, feature=feature))
     return ps