Telemetry: extends Platform abstraction.

tools/telemetry/telemetry/multi_page_benchmark_runner.py

 #!/usr/bin/env python
 # 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.
 import csv
 import logging
 import os
 import sys
 
 from telemetry import all_page_interactions # pylint: disable=W0611
@@ skipping 43 matching lines @@
   ps = page_set.PageSet.FromFile(args[1])
 
   benchmark.CustomizeBrowserOptions(options)
   possible_browser = browser_finder.FindBrowser(options)
   if not possible_browser:
     print >> sys.stderr, """No browser found.\n
 Use --browser=list to figure out which are available.\n"""
     sys.exit(1)
 
   results = multi_page_benchmark.CsvBenchmarkResults(csv.writer(sys.stdout))
-  with page_runner.PageRunner(ps) as runner:
-    runner.Run(options, possible_browser, benchmark, results)
+  with possible_browser.CreatePlatformHarness():
+    with page_runner.PageRunner(ps) as runner:
+      runner.Run(options, possible_browser, benchmark, results)
+
   # When using an exact executable, assume it is a reference build for the
   # purpose of outputting the perf results.
   results.PrintSummary(options.browser_executable and '_ref' or '')
 
   if len(results.page_failures):
     logging.warning('Failed pages: %s', '\n'.join(
         [failure['page'].url for failure in results.page_failures]))
 
   if len(results.skipped_pages):
     logging.warning('Skipped pages: %s', '\n'.join(
         [skipped['page'].url for skipped in results.skipped_pages]))
   return min(255, len(results.page_failures))