- kCollectAndroidFrameTimelineMetrics feature; - org.chromium.base.jank_tracker.* classes Chromium change: https://source.chromium.org/chromium/chromium/src/+/2517b26f8677a7e51f36b3c10ed3acb61e0777b7 Cleanup Android.FrameTimeLineJank.* histograms and related code. The histograms are not being used actively to derive any investigations. Histogram emission was guarded behind feature flag which hasn't been enabled in any for some time. OBSOLETE_HISTOGRAMS: Patterned histograms Android.FrameTimelineJank.Duration{JankScenario}, Android.FrameTimelineJank.FrameJankStatus{JankScenario}, Android.FrameTimelineJank.{Scenario}.DelayedFramesPercentage.PerScroll{Length}, Android.FrameTimelineJank.{Scenario}.MissedVsyncs{Operator}.PerScroll{Length} haven't been emitted in more than an year. Bug: 408388498 Change-Id: Ice1d88847eef4a8a765d4886a25aba9428961e90 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6434049