e2cb1f12c3
Computing all metrics using constant extra memory. PlotHistogram methods are executed in constant time. -- Previously throughput and delay were using O(num_packets) extra memory and their associated PlotHistograms took linear time complexity. Added MetricRecorder unittests R=stefan@webrtc.org Review URL: https://codereview.webrtc.org/1257683006 . Cr-Commit-Position: refs/heads/master@{#9658}