Adding a test for measuring memory usage.

tools/perf/perf_tools/robohornetpro.py

 # Copyright (c) 2012 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.
 
 from telemetry import multi_page_benchmark
 from telemetry import util
 
 class RobohornetPro(multi_page_benchmark.MultiPageBenchmark):
-  def CustomizeBrowserOptions(self, options):
+  def CustomizeBrowserOptions(self, pages, options):
     # Benchmark require use of real Date.now() for measurement.
     options.wpr_make_javascript_deterministic = False
 
   def MeasurePage(self, _, tab, results):
     tab.runtime.Execute('ToggleRoboHornet()')
 
     done = 'document.getElementById("results").innerHTML.indexOf("Total") != -1'
     def _IsDone():
       return tab.runtime.Evaluate(done)
     util.WaitFor(_IsDone, 60)
 
     result = int(tab.runtime.Evaluate('stopTime - startTime'))
     results.Add('Total', 'ms', result)