Telemetry Test for WebRTC Rendering.

tools/perf/benchmarks/webrtc_rendering.py

+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from core import perf_benchmark
+from telemetry.timeline import tracing_category_filter
+from telemetry.web_perf import timeline_based_measurement
+
+import page_sets
+
+BENCHMARK_VALUES = 'WebRTCRendering_'
+
+class WebRTCRendering(perf_benchmark.PerfBenchmark):
+  """Timeline based benchmark for the WebRtc rendering."""
+
+  page_set = page_sets.WebrtcRenderingPageSet
+
+  def CreateTimelineBasedMeasurementOptions(self):
+    cc_filter = tracing_category_filter.TracingCategoryFilter(
+        filter_string='webrtc, webkit.console, blink.console')

[Zhen Wang, 2015/10/08 17:56:15]

Remove the space here should fix the problem. You can following the style used
in other TBM benchmarks:
https://code.google.com/p/chromium/codesearch#chromium/src/tools/perf/measure...

That is, something like
webrtc_categories = ['webrtc', 'webkit.console', 'blink.console']
ccc_filter =
tracing_category_filter.TracingCategoryFilter(','.join(webrtc_categories))


Meanwhile, I will fix the tracing category filter bug.

+    return timeline_based_measurement.Options(overhead_level=cc_filter)
+
+  def CustomizeBrowserOptions(self, options):
+    options.AppendExtraBrowserArgs('--use-fake-device-for-media-stream')
+    options.AppendExtraBrowserArgs('--use-fake-ui-for-media-stream')
+    options.AppendExtraBrowserArgs('--enable-rtc-smoothness-algorithm')
+
+  @classmethod
+  def Name(cls):
+    return 'webrtc_rendering.webrtc_rendering'
+
+  @classmethod
+  def ValueCanBeAddedPredicate(cls, value, is_first_result):
+    return value.name.startswith(BENCHMARK_VALUES)