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 metrics import power
8 from telemetry.page import page_measurement
11 class WebRTC(page_measurement.PageMeasurement):
12 """Gathers WebRTC-related metrics on a page set."""
15 super(WebRTC, self).__init__('RunWebrtc')
16 self._cpu_metric = None
17 self._memory_metric = None
18 self._power_metric = power.PowerMetric()
20 def DidStartBrowser(self, browser):
21 self._cpu_metric = cpu.CpuMetric(browser)
22 self._memory_metric = memory.MemoryMetric(browser)
24 def DidNavigateToPage(self, page, tab):
25 self._cpu_metric.Start(page, tab)
26 self._memory_metric.Start(page, tab)
27 self._power_metric.Start(page, tab)
29 def CustomizeBrowserOptions(self, options):
30 memory.MemoryMetric.CustomizeBrowserOptions(options)
31 options.AppendExtraBrowserArgs('--use-fake-device-for-media-stream')
32 options.AppendExtraBrowserArgs('--use-fake-ui-for-media-stream')
33 power.PowerMetric.CustomizeBrowserOptions(options)
35 def MeasurePage(self, page, tab, results):
36 """Measure the page's performance."""
37 self._memory_metric.Stop(page, tab)
38 self._memory_metric.AddResults(tab, results)
40 self._cpu_metric.Stop(page, tab)
41 self._cpu_metric.AddResults(tab, results)
43 self._power_metric.Stop(page, tab)
44 self._power_metric.AddResults(tab, results)