Telemetry Test for WebRTC Rendering.

tools/telemetry/telemetry/web_perf/timeline_based_measurement.py

Index: tools/telemetry/telemetry/web_perf/timeline_based_measurement.py
diff --git a/tools/telemetry/telemetry/web_perf/timeline_based_measurement.py b/tools/telemetry/telemetry/web_perf/timeline_based_measurement.py
index 1d02871008fc89f78c81d8e4d215b5693fdae244..e6d63e003538d2c84a6df97c4b80d0a26b757090 100644
--- a/tools/telemetry/telemetry/web_perf/timeline_based_measurement.py
+++ b/tools/telemetry/telemetry/web_perf/timeline_based_measurement.py
@@ -10,6 +10,7 @@ from telemetry.timeline import tracing_options
 from telemetry.value import trace
 from telemetry.web_perf.metrics import timeline_based_metric
 from telemetry.web_perf.metrics import blob_timeline
+from telemetry.web_perf.metrics import webrtc_rendering_timeline
 from telemetry.web_perf.metrics import gpu_timeline
 from telemetry.web_perf.metrics import layout
 from telemetry.web_perf.metrics import memory_timeline
@@ -39,13 +40,15 @@ def _GetAllTimelineBasedMetrics():
   # TODO(nednguyen): use discovery pattern to return all the instances of
   # all TimelineBasedMetrics class in web_perf/metrics/ folder.
   # This cannot be done until crbug.com/460208 is fixed.
+  print "In TBM module base"
   return (smoothness.SmoothnessMetric(),
           responsiveness_metric.ResponsivenessMetric(),
           layout.LayoutMetric(),
           gpu_timeline.GPUTimelineMetric(),
           blob_timeline.BlobTimelineMetric(),
           memory_timeline.MemoryTimelineMetric(),
-          text_selection.TextSelectionMetric())
+          text_selection.TextSelectionMetric(),
+          webrtc_rendering_timeline.WebRtcRenderingTimelineMetric())
 
 
 class InvalidInteractions(Exception):