Collecting LatencyInfo in telemetry

tools/perf/measurements/rasterize_and_record.py

 # Copyright (c) 2012 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.
 
 import logging
 import sys
 import time
 
 from metrics import rendering_stats
 from telemetry.page import page_measurement
@@ skipping 92 matching lines @@
         'console.timeEnd("' + TIMELINE_MARKER + '")')
 
     timeline = tab.browser.StopTracing().AsTimelineModel()
     try:
       timeline_markers = timeline.FindTimelineMarkers(TIMELINE_MARKER)
     except (MarkerMismatchError, MarkerOverlapError) as e:
       raise page_measurement.MeasurementFailure(str(e))
     timeline_ranges = [ timeline_bounds.Bounds.CreateFromEvent(marker)
                         for marker in timeline_markers ]
     renderer_process = timeline.GetRendererProcessFromTab(tab)
-    stats = rendering_stats.RenderingStats(renderer_process, timeline_ranges)
+    browser_main_thread = timeline.GetBrowserMainThread()
+
+    stats = rendering_stats.RenderingStats(
+        renderer_process, browser_main_thread, timeline_ranges)
 
     results.Add('rasterize_time', 'ms',
                 max(stats.rasterize_time))
     results.Add('record_time', 'ms',
                 max(stats.record_time))
     results.Add('rasterized_pixels', 'pixels',
                 max(stats.rasterized_pixel_count))
     results.Add('recorded_pixels', 'pixels',
                 max(stats.recorded_pixel_count))