mac: Expose keychain access frequency to Telemetry.

tools/perf/benchmarks/speedometer.py

Index: tools/perf/benchmarks/speedometer.py
diff --git a/tools/perf/benchmarks/speedometer.py b/tools/perf/benchmarks/speedometer.py
index bbbad0cf9334ffe94c79910885bc91c875583958..50b60ca9ca4d1f195b363330bff6fcd497cf1e98 100644
--- a/tools/perf/benchmarks/speedometer.py
+++ b/tools/perf/benchmarks/speedometer.py
@@ -18,13 +18,13 @@ engine, CSS style resolution, layout, and other technologies.
 
 import os
 
+from measurements import PageTestMeasurement
 from telemetry import benchmark
 from telemetry.page import page_set
-from telemetry.page import page_test
 from telemetry.value import list_of_scalar_values
 
 
-class SpeedometerMeasurement(page_test.PageTest):
+class SpeedometerMeasurement(PageTestMeasurement):
   enabled_suites = [
     'VanillaJS-TodoMVC',
     'EmberJS-TodoMVC',
@@ -71,6 +71,8 @@ class SpeedometerMeasurement(page_test.PageTest):
               };
               suite_times;
               """ % suite_name), important=False))
+    super(SpeedometerMeasurement, self).ValidateAndMeasurePage(
+        page, tab, results)
 
 class Speedometer(benchmark.Benchmark):
   test = SpeedometerMeasurement