+}
+
+void ProxyTimingHistory::AddDrawDurationUMA(
+ base::TimeDelta draw_duration,
+ base::TimeDelta draw_duration_estimate) {
+ base::TimeDelta draw_duration_overestimate;
+ base::TimeDelta draw_duration_underestimate;
+ if (draw_duration > draw_duration_estimate)
+ draw_duration_underestimate = draw_duration - draw_duration_estimate;
+ else
+ draw_duration_overestimate = draw_duration_estimate - draw_duration;
+ UMA_HISTOGRAM_CUSTOM_TIMES("Renderer.DrawDuration",
+ draw_duration,
+ base::TimeDelta::FromMilliseconds(1),
+ base::TimeDelta::FromMilliseconds(100),
+ 50);
+ UMA_HISTOGRAM_CUSTOM_TIMES("Renderer.DrawDurationUnderestimate",
+ draw_duration_underestimate,
+ base::TimeDelta::FromMilliseconds(1),
+ base::TimeDelta::FromMilliseconds(100),
+ 50);
+ UMA_HISTOGRAM_CUSTOM_TIMES("Renderer.DrawDurationOverestimate",
+ draw_duration_overestimate,
+ base::TimeDelta::FromMilliseconds(1),
+ base::TimeDelta::FromMilliseconds(100),
+ 50);