mac: Expose keychain access frequency to Telemetry.

tools/perf/measurements/record_per_area.py

 # Copyright 2013 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.
 
 import time
 
+from measurements import PageTestMeasurement
 from measurements import smoothness
-from telemetry.page import page_test
 from telemetry.value import scalar
 
 
-class RecordPerArea(page_test.PageTest):
+class RecordPerArea(PageTestMeasurement):
   def __init__(self):
     super(RecordPerArea, self).__init__('', True)
 
   def AddCommandLineArgs(self, parser):
     parser.add_option('--start-wait-time', type='float',
                       default=2,
                       help='Wait time before the benchmark is started '
                       '(must be long enought to load all content)')
 
   def CustomizeBrowserOptions(self, options):
-    smoothness.Smoothness.CustomizeBrowserOptions(options)
+    super(RecordPerArea, self).CustomizeBrowserOptions(options)
+    smoothness.Smoothness.CustomizeBrowserOptionsClass(options)
     options.AppendExtraBrowserArgs([
         '--enable-impl-side-painting',
         '--enable-threaded-compositing',
         '--enable-gpu-benchmarking'
     ])
 
   def ValidateAndMeasurePage(self, page, tab, results):
     # Wait until the page has loaded and come to a somewhat steady state.
     # Needs to be adjusted for every device (~2 seconds for workstation).
     time.sleep(self.options.start_wait_time)
 
+    super(RecordPerArea, self).ValidateAndMeasurePage(page, tab, results)
+
     # Enqueue benchmark
     tab.ExecuteJavaScript("""
         window.benchmark_results = {};
         window.benchmark_results.done = false;
         chrome.gpuBenchmarking.runMicroBenchmark(
             "picture_record_benchmark",
             function(value) {
               window.benchmark_results.done = true;
               window.benchmark_results.results = value;
             }, [{width: 1, height: 1},
@@ skipping 10 matching lines @@
     all_data = tab.EvaluateJavaScript('window.benchmark_results.results')
     for data in all_data:
       width = data['width']
       height = data['height']
       area = width * height
       time_ms = data['time_ms']
 
       results.AddValue(scalar.ScalarValue(
           results.current_page, 'area_%07d_%dx%d' % (area, width, height),
           'ms', time_ms))