mac: Expose keychain access frequency to Telemetry.

tools/perf/benchmarks/dromaeo.py

Index: tools/perf/benchmarks/dromaeo.py
diff --git a/tools/perf/benchmarks/dromaeo.py b/tools/perf/benchmarks/dromaeo.py
index 326a1b0d74f93d85bf79856c5e201a7be1375dd0..324b7029e6e41812ac4b9c02e56e34a700d192ca 100644
--- a/tools/perf/benchmarks/dromaeo.py
+++ b/tools/perf/benchmarks/dromaeo.py
@@ -5,19 +5,20 @@
 import math
 import os
 
+from measurements import PageTestMeasurement
 from metrics import power
 from telemetry import benchmark
 from telemetry.page import page_set
-from telemetry.page import page_test
 from telemetry.value import scalar
 
 
-class _DromaeoMeasurement(page_test.PageTest):
+class _DromaeoMeasurement(PageTestMeasurement):
   def __init__(self):
     super(_DromaeoMeasurement, self).__init__()
     self._power_metric = None
 
   def CustomizeBrowserOptions(self, options):
+    super(_DromaeoMeasurement, self).CustomizeBrowserOptions(options)
     power.PowerMetric.CustomizeBrowserOptions(options)
 
   def WillStartBrowser(self, platform):
@@ -92,6 +93,9 @@ class _DromaeoMeasurement(page_test.PageTest):
     for key, value in aggregated.iteritems():
       AddResult(key, math.exp(value['sum'] / value['count']))
 
+    super(_DromaeoMeasurement, self).ValidateAndMeasurePage(
+        page, tab, results)
+
 class _DromaeoBenchmark(benchmark.Benchmark):
   """A base class for Dromaeo benchmarks."""
   test = _DromaeoMeasurement