mac: Expose keychain access frequency to Telemetry.

tools/perf/benchmarks/jsgamebench.py

Index: tools/perf/benchmarks/jsgamebench.py
diff --git a/tools/perf/benchmarks/jsgamebench.py b/tools/perf/benchmarks/jsgamebench.py
index a9c10f6a636a604917c05b5f4292505310361daf..3ec10280976c6deb79256852cf96ed0047fb7e56 100644
--- a/tools/perf/benchmarks/jsgamebench.py
+++ b/tools/perf/benchmarks/jsgamebench.py
@@ -12,13 +12,13 @@ The benchmark is kept here for historical purposes but is disabled on the bots.
 
 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 scalar
 
 
-class _JsgamebenchMeasurement(page_test.PageTest):
+class _JsgamebenchMeasurement(PageTestMeasurement):
   def __init__(self):
     super(_JsgamebenchMeasurement, self).__init__()
 
@@ -31,6 +31,8 @@ class _JsgamebenchMeasurement(page_test.PageTest):
     result = int(tab.EvaluateJavaScript(js_get_results))
     results.AddValue(scalar.ScalarValue(
         results.current_page, 'Score', 'score (bigger is better)', result))
+    super(_JsgamebenchMeasurement, self).ValidateAndMeasurePage(
+        page, tab, results)
 
 
 @benchmark.Disabled