mac: Expose keychain access frequency to Telemetry.

tools/perf/measurements/page_cycler.py

Index: tools/perf/measurements/page_cycler.py
diff --git a/tools/perf/measurements/page_cycler.py b/tools/perf/measurements/page_cycler.py
index 1f9f63f03b3c471f8069b64efdf832f165e0948e..927e4ddff3079103f5a7e47f8a49e355c8fd9c00 100644
--- a/tools/perf/measurements/page_cycler.py
+++ b/tools/perf/measurements/page_cycler.py
@@ -20,6 +20,7 @@ import os
 
 from metrics import cpu
 from metrics import iometric
+from metrics import keychain_metric
 from metrics import memory
 from metrics import power
 from metrics import speedindex
@@ -49,6 +50,7 @@ class PageCycler(page_test.PageTest):
     self._v8_object_stats_metric = None
     self._has_loaded_page = collections.defaultdict(int)
     self._initial_renderer_url = None  # to avoid cross-renderer navigation
+    self._in_unit_test = False
 
     cold_runs_percent_set = (cold_load_percent != None)
     # Handle requests for cold cache runs
@@ -69,6 +71,10 @@ class PageCycler(page_test.PageTest):
     else:
       self._cold_run_start_index = pageset_repeat * page_repeat
 
+  def SetInUnitTest(self, in_unit_test):
+    """Setter for the property |_in_unit_test|."""
+    self._in_unit_test = in_unit_test
+
   def WillStartBrowser(self, platform):
     """Initialize metrics once right before the browser has been launched."""
     self._power_metric = power.PowerMetric(platform)
@@ -113,6 +119,10 @@ class PageCycler(page_test.PageTest):
     if self._report_speed_index:
       self._speedindex_metric.CustomizeBrowserOptions(options)
 
+    if (keychain_metric.KeychainMetric.ShouldCollectKeychainMetrics()
+        and not self._in_unit_test):
+      keychain_metric.KeychainMetric.CustomizeBrowserOptions(options)
+
   def ValidateAndMeasurePage(self, page, tab, results):
     tab.WaitForJavaScriptExpression('__pc_load_time', 60)
 
@@ -149,6 +159,9 @@ class PageCycler(page_test.PageTest):
       self._speedindex_metric.Stop(page, tab)
       self._speedindex_metric.AddResults(
           tab, results, chart_name=chart_name_prefix+'speed_index')
+    if (keychain_metric.KeychainMetric.ShouldCollectKeychainMetrics()
+        and not self._in_unit_test):
+      keychain_metric.KeychainMetric().AddResults(tab, results)
 
   def DidRunTest(self, browser, results):
     iometric.IOMetric().AddSummaryResults(browser, results)