1 # Copyright 2014 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 from metrics import cpu
6 from metrics import memory
7 from telemetry.page import page_measurement
10 class WebRTC(page_measurement.PageMeasurement):
11 """Gathers WebRTC-related metrics on a page set."""
14 super(WebRTC, self).__init__('webrtc')
15 self._cpu_metric = None
16 self._memory_metric = None
18 def DidStartBrowser(self, browser):
19 self._cpu_metric = cpu.CpuMetric(browser)
20 self._memory_metric = memory.MemoryMetric(browser)
22 def DidNavigateToPage(self, page, tab):
23 self._cpu_metric.Start(page, tab)
24 self._memory_metric.Start(page, tab)
26 def CustomizeBrowserOptions(self, options):
27 memory.MemoryMetric.CustomizeBrowserOptions(options)
28 options.AppendExtraBrowserArgs('--use-fake-device-for-media-stream')
29 options.AppendExtraBrowserArgs('--use-fake-ui-for-media-stream')
31 def MeasurePage(self, page, tab, results):
32 """Measure the page's performance."""
33 self._memory_metric.Stop(page, tab)
34 self._memory_metric.AddResults(tab, results)
36 self._cpu_metric.Stop(page, tab)
37 self._cpu_metric.AddResults(tab, results)
39 tab.EvaluateJavaScript('checkForErrors();')