Measure video stats for WebRTC calls to ensure video works.

tools/perf/measurements/webrtc.py

Index: tools/perf/measurements/webrtc.py
diff --git a/tools/perf/measurements/webrtc.py b/tools/perf/measurements/webrtc.py
index 5b8680ba3ae1a41ecbaed0a6e05114d473f5a5fa..b524a6c71699f43b61bc7401cf5f2961ee064e67 100644
--- a/tools/perf/measurements/webrtc.py
+++ b/tools/perf/measurements/webrtc.py
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 from metrics import cpu
+from metrics import media
 from metrics import memory
 from metrics import power
 from metrics import webrtc_stats
@@ -15,6 +16,7 @@ class WebRTC(page_test.PageTest):
   def __init__(self):
     super(WebRTC, self).__init__('RunPageInteractions')
     self._cpu_metric = None
+    self._media_metric = None
     self._memory_metric = None
     self._power_metric = None
     self._webrtc_stats_metric = None
@@ -29,6 +31,8 @@ class WebRTC(page_test.PageTest):
 
   def DidNavigateToPage(self, page, tab):
     self._cpu_metric.Start(page, tab)
+    self._media_metric = media.MediaMetric(tab)
+    self._media_metric.Start(page, tab)
     self._memory_metric.Start(page, tab)
     self._power_metric.Start(page, tab)
     self._webrtc_stats_metric.Start(page, tab)
@@ -52,3 +56,6 @@ class WebRTC(page_test.PageTest):
 
     self._webrtc_stats_metric.Stop(page, tab)
     self._webrtc_stats_metric.AddResults(tab, results)
+
+    self._media_metric.Stop(page, tab)
+    self._media_metric.AddResults(tab, results)

[qyearsley, 2014/11/19 21:15:33]

I'm wondering whether there's any particular reason to stop & report media
results last?

[phoglund_chromium, 2014/11/20 09:26:46]

Nope, none at all. Actually I should move it sorted on the metric name, like I
do in the other methods...