WebRTC: Add a TBMv2 version of the webrtc.webrtc_smoothness benchmark.

tools/perf/benchmarks/webrtc.py

Index: tools/perf/benchmarks/webrtc.py
diff --git a/tools/perf/benchmarks/webrtc.py b/tools/perf/benchmarks/webrtc.py
index d9388a7fc052b8310042dc0b517bd7ad7bbd3412..77f83e268b7fdc2dfd7f793455c803f18af04541 100644
--- a/tools/perf/benchmarks/webrtc.py
+++ b/tools/perf/benchmarks/webrtc.py
@@ -91,3 +91,26 @@ class WebrtcRendering(perf_benchmark.PerfBenchmark):
   @classmethod
   def Name(cls):
     return 'webrtc.webrtc_smoothness'
+
+
+# WebrtcRenderingTBMv2 must be a PerfBenchmark, and not a _Webrtc, because it is
+# a timeline-based metric.
+class WebrtcRenderingTBMv2(perf_benchmark.PerfBenchmark):
+  """Specific time measurements (e.g. fps, smoothness) for WebRtc rendering."""
+
+  page_set = page_sets.WebrtcRenderingPageSet
+
+  def CreateTimelineBasedMeasurementOptions(self):
+    category_filter = chrome_trace_category_filter.ChromeTraceCategoryFilter(
+        filter_string='webrtc,webkit.console,blink.console')

[nednguyen, 2017/03/14 19:33:01]

filter_string='webrtc,webkit.console,toplevel'

+    options = timeline_based_measurement.Options(category_filter)
+    options.SetTimelineBasedMetrics(['webrtcRenderingMetric'])

[nednguyen, 2017/03/14 19:33:01]

options.SetTimelineBasedMetrics(['webrtcRenderingMetric', 'cpuMetric'])

+    return options
+
+  def SetExtraBrowserOptions(self, options):
+    options.AppendExtraBrowserArgs('--use-fake-device-for-media-stream')
+    options.AppendExtraBrowserArgs('--use-fake-ui-for-media-stream')
+
+  @classmethod
+  def Name(cls):
+    return 'webrtc.webrtc_smoothness_tbmv2'