7dc2b84b30
LatencyTracker was used to calculate UMAs/UKMs based on the start of swap time. These have all been replaced by variants that calculate to presentation time. There were a few remaining UKMs left. The total latency now have variants for presentation time. The others were never correctly aggregated, and the breakdown coverage we have is sufficient. This removes LatencyTracker along with some params in LatencyInfo that were only ever relevant to these metrics. Bug: 334977830 Change-Id: Ic09c1f7caa38edb57364ef6e689d80f83a693442 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5663414 Reviewed-by: Robert Kaplow <rkaplow@chromium.org> Reviewed-by: Ken Buchanan <kenrb@chromium.org> Reviewed-by: Hidehiko Abe <hidehiko@chromium.org> Reviewed-by: ccameron chromium <ccameron@chromium.org> Commit-Queue: Jonathan Ross <jonross@chromium.org> Reviewed-by: Robert Flack <flackr@chromium.org> Cr-Commit-Position: refs/heads/main@{#1326804}