Update GraphingPageCyclerLogProcessor to work with updated Telemetry pagecyclers

scripts/slave/unittests/runtest_annotator_test.py

 #!/usr/bin/env python
 # 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.
 
 """Unit tests for annotated log parsers in runtest.py.
 
 runtest.py has the option to parse test output locally and send results to the
 master via annotator steps. This file tests those parsers.
 
@@ skipping 337 matching lines @@
     self.assertEqual(expected, step.PerformanceSummary()[0])
     self.assertEqual(FAILURE, step.evaluateCommand('mycommand'))
 
   def testPerfExpectationsImproveZero(self):
     step = self._TestPerfExpectations(
         'perf_test_better_higher_improve_zero.json')
     expected = ('PERF_IMPROVE: vm_final_browser/1t_vm_b (inf%)')
     self.assertEqual(expected, step.PerformanceSummary()[0])
     self.assertEqual(WARNINGS, step.evaluateCommand('mycommand'))
 
+class GraphingPageCyclerLogProcessorPerfTest(LoggingStepBase):
+  def testPageCycler(self):
+    parser = self._ConstructDefaultProcessor(
+        process_log_utils.GraphingPageCyclerLogProcessor)
+    self._ProcessLog(parser, 'page_cycler.log')
+
+    expected = 't: 2.32k'
+    self.assertEqual(expected, parser.PerformanceSummary()[0])
+
 if __name__ == '__main__':
   unittest.main()