Enable the pyauto-based page cycler tests on ChromeOS in the autotest lab.

chrome/test/functional/PYAUTO_TESTS

 # Copyright (c) 2012 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.
 #
 # This file lists the pyauto tests that run as a part of the functional test
 # suite.
 #
 # Tests can be enabled on a per-platform basis. Tests not listed here will
 # not be run.
 #
@@ skipping 706 matching lines @@
       'perf.LiveWebappLoadTest.testNewTabGmail',
       'perf.ScrollTest.testGooglePlusScroll',
     ],
   },
 
   # ChromeOS performance tests.
   'CHROMEOS_PERF': {
     'chromeos': [
       'perf',
       '-perf.GPUPerfTest',
-      '-perf.PageCyclerTest',
     ],
   },
 
   # Subset of performance tests for seaboard.
   'CHROMEOS_PERF_SEABOARD': {
     'chromeos': [
       'perf.ScrollTest.testBlankPageScroll',
       'perf.ScrollTest.testGooglePlusScroll',
       'perf.ScrollTest.testTextScroll',
     ],
   },
 
   # HTML5 media performance tests.
   'AV_PERF': {
      'linux': [
        'media.media_constrained_network_perf',
        'media.media_jerky',
        'media.media_stat_perf',
      ],
   },
 }